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Tesla: A Carmaker Or Grid-Storage Company?

cartechboy (2660665) writes "Let's be real, the three Detroit automakers were skeptical of Tesla Motors, and rightfully so. But at this point, it's pretty hard to deny the impact this Silicon Valley automaker is having on the industry. Now there's a new question buzzing around: Is Tesla Motors actually a carmaker, or is it really just a grid-storage company? If you think about it, the company's stock price is too high for Toyota or Daimler to just buy it outright. So maybe Tesla's gigafactory will not only make batteries for its own electric cars, but it could also sell battery packs to electric utilities and others. In reality, the gigafactory could become its own separate company and just sell the battery packs to Tesla, and others."

151 comments

  1. carbon offsets by Anonymous Coward · · Score: 2, Funny

    No, its just a carbon offset dealer.

    1. Re:carbon offsets by ZankerH · · Score: 1, Funny

      Have you bought your indulgences for the week, comrade? Pay the carbon tax and your sins against Gaia are forgiven!

    2. Re: carbon offsets by Anonymous Coward · · Score: 1

      and crony capitalism where they are being subsidized by the traditional automakers based on a scheme created by Sacramento lawmakers.

  2. There is already a Tesla home battery pack by Anonymous Coward · · Score: 1

    Or there was at some point in time...

    http://www.solarcity.com/residential/energy-storage.aspx

    1. Re:There is already a Tesla home battery pack by bferrell · · Score: 4, Interesting

      Having investigated this scenario, here's how it works:

      Solarcity installs a system (panels, storage, chargers/inverters) on your premises at zero cost to you. They get the tax subsidy offered for the installation. You roof is now occupied by solarcity. They sell you electricity AND what you don't use, they sell to your local utility. You have now switched energy providers and are STILL paying power bills.

      I fully recognize they they take on what maintenance there is on this plant... But there isn't much and they are completely unregulated. They charge the home owner whatever they please, just so it's below the regulated utility.

      It doesn't sit well with me and I won't do business that way.

    2. Re:There is already a Tesla home battery pack by mr+dirtbag · · Score: 5, Insightful

      It doesn't sit well with me and I won't do business that way.

      Seems like the customer who can't afford the upfront cost of panels is benefiting from cheaper energy bills.

      How is this unfair?

    3. Re:There is already a Tesla home battery pack by Anonymous Coward · · Score: 1

      I agree, and would add that it's cheaper and non-carbon emitting (at least at the source, arguable as to how clean they are if you take into account production energy); usually you pay a premium for clean power. Plus all your neighbors can see how green you are.

    4. Re:There is already a Tesla home battery pack by ganjadude · · Score: 4, Informative

      I cant speak for this company but we have a setup like this at our home

      What we did was sign a lease with the company, they own the panels, we own the electric. We pay them a fixed price on the panels per month which is around 25% of what we were paying prior to the installation. At the end of the month, Any excess power created above the lease price is paid to us (not the lease company) At the end of last year we made 1800$ in electric generation (after paying the fees, the actual check was somewhat higher, around 2800)

      I dont know what company we are using as my father is the one who deals with it

      --
      have you seen my sig? there are many others like it but none that are the same
    5. Re:There is already a Tesla home battery pack by AmiMoJo · · Score: 1

      There was something similar in the UK but it was regulated. A very good deal if you could get it.

      Now we have a scheme where you basically take a loan to pay for the panels, and pay it back at a rate that is lower than the amount you save on your bills. The only real danger is that some idiots are put off buying a house with solar because they read green-hating newspapers, but otherwise it's a good deal for those who can't afford to invest a few thousand for several years up front.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    6. Re:There is already a Tesla home battery pack by Anonymous Coward · · Score: 0

      It doesn't sit well with me and I won't do business that way.

      Did they do something wrong? Violate some law, or someone's rights?

    7. Re:There is already a Tesla home battery pack by Anonymous Coward · · Score: 1

      So you'd get a) cheaper energy than you currently do, b) reduce your carbon footprint, c) contribute towards cleaner air... and it's still not enough?
      Most people would call such an attitude greedy and selfish.

    8. Re:There is already a Tesla home battery pack by Ichijo · · Score: 2

      I fully recognize they they take on what maintenance there is on this plant... But there isn't much...

      They also take on the opportunity cost of capital which is around 7% annually of the cost of the installation. That's $700 per year or $58 per month for a $10,000 installation.

      --
      Any sufficiently unpopular but cohesive argument is indistinguishable from trolling.
    9. Re:There is already a Tesla home battery pack by uncqual · · Score: 1

      When you sell your house, is the new owner/house encumbered with the agreement you signed with SolarCity? How long does the agreement last?

      --
      Why is there an "insightful" mod and why isn't it "-1"? If I wanted insight, I wouldn't be reading /.
    10. Re:There is already a Tesla home battery pack by DickBreath · · Score: 1

      > It doesn't sit well with me and I won't do business that way.

      What is the problem with reducing your energy cost while at the same time helping the planet?

      While I usually like pricks, in your case I will make an exception.

      --

      I'll see your senator, and I'll raise you two judges.
    11. Re:There is already a Tesla home battery pack by viperidaenz · · Score: 1

      They charge the home owner whatever they please, just so it's below the regulated utility.

      So doesn't that make it cheaper?

    12. Re:There is already a Tesla home battery pack by viperidaenz · · Score: 1

      d) for zero capital outlay.

    13. Re:There is already a Tesla home battery pack by bferrell · · Score: 1

      Uhhh... it's unfair in that solarcity uses the tax benefit/subsidies due the homeowner AND has the homeowner's roof locked up under a 20 year lease? I've calculated that at retail levels, equipment costs and installation is paid off in 10 years. That's before the tax benefits/subsidies are applied.

      Now, let's add a peculiar California spin on this (my state). The utilities have been required by law to add storage capacity to the grid for something known as regulation... Fill in. This means regulating the grid up and down. When they regulate the grid up... They feed energy to the grid. Regulating down means absorbing from the grid. These activities are extraordinarily lucrative and the property owner get's none of that but it uses the "plant" they have effectively paid for.

      This is also why the utilities are crying foul over the lack of grid maintenance fees by the entities with this type of operation (there are only a few, but they're all big, pretending to be small). They get to act like an energy provider with few, if any of the responsibilities. And home owners shoulder most of the burden. I consider it a scam. The operation is new, mildly more complicated than just plugging in a blender so there is confusion. And "they" are taking advantage of the confusion, back by lawyers.

    14. Re:There is already a Tesla home battery pack by bferrell · · Score: 1

      The new owner IS encumbered and typically these are 20 year leases on your roof

    15. Re:There is already a Tesla home battery pack by bferrell · · Score: 1

      NOT zero outlay. you still pay just about what you'd have payed the utility anyway... And they get to build an indistrial plat in and about your property

    16. Re:There is already a Tesla home battery pack by bferrell · · Score: 1

      There is the letter of the law and there is what is right.

      There are a lot of things people CAN do... They just shouldn't

    17. Re:There is already a Tesla home battery pack by lgw · · Score: 3, Insightful

      All hippie environ-wenie BS aside, the only true appeal of home solar is independence. Trading one master for another to get power is pointless. Powering your own house and car with your own equipment in a true "off the grid" way would be awesome, inspirational even. But home solar isn't quite there yet - tantalizingly close, mind you.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    18. Re:There is already a Tesla home battery pack by Anonymous Coward · · Score: 0

      I understand, but these guys aren't forcing themselves on anyone, they are providing a service that has value.

      Pros
      Bypass power grid (removes point of failure)
      No upfront cost
      Cheaper electric rates

      Cons
      More expensive roof repair

      You make this sound like some kind of moral issue, but I'm not seeing it.

    19. Re:There is already a Tesla home battery pack by hawguy · · Score: 1

      NOT zero outlay. you still pay just about what you'd have payed the utility anyway... And they get to build an indistrial plat in and about your property

      That's an operational cost, not a capital cost -- which many people find to be more affordable (which is why many people will happily pay their cell phone carrier much more than the price of a cell phone since the carrier gives them the phone with little upfront cost and makes up the cost in monthly fees)

    20. Re:There is already a Tesla home battery pack by hawguy · · Score: 1

      All hippie environ-wenie BS aside, the only true appeal of home solar is independence. Trading one master for another to get power is pointless. Powering your own house and car with your own equipment in a true "off the grid" way would be awesome, inspirational even. But home solar isn't quite there yet - tantalizingly close, mind you.

      Why isn't lower utility bills also an incentive? As long as the lease company charges you less that utility market rates, then doesn't that make solar more appealing? Not everyone wants to own and run their own powerplant, they are happy to let someone else own it and run it even if it costs them more money.

    21. Re:There is already a Tesla home battery pack by lgw · · Score: 1

      Meh, most promises of "buy our shit and you'll come out ahead on your utility bills" are blatant scams. Maybe these guys are legit, but I'd give em a heck of a lot of scrutiny. What's the fine print in the contract? What happens to your roof if they go under? What happens when the city outlaws selling power back to the grid because of bribery?

      I prefer simplicity to penny pinching. If I own it all, with someone offering the service/maintenance for a reasonable price, that's much more clear.

      --
      Socialism: a lie told by totalitarians and believed by fools.
    22. Re:There is already a Tesla home battery pack by hawguy · · Score: 1

      Meh, most promises of "buy our shit and you'll come out ahead on your utility bills" are blatant scams. Maybe these guys are legit, but I'd give em a heck of a lot of scrutiny. What's the fine print in the contract? What happens to your roof if they go under? What happens when the city outlaws selling power back to the grid because of bribery?

      I prefer simplicity to penny pinching. If I own it all, with someone offering the service/maintenance for a reasonable price, that's much more clear.

      I think you have it backwards -- simplicity is dealing with one company - you can tell them put their panels on the roof, deal with all ongoing maintenance and service, and charge you less for power than the utility. Penny pinching is "Hire Company A to install the panels, Hire company B to maintain them, when something breaks, mediate the fight between Company A, Company B, and the company that manufactured the equipment while in the meantime you have no power since your grid-tie inverter blew up". When one company does it all, you can hold them to their SLA to fix the equipment regardless of whether it was a manufacturing defect, an installation error, or lack of preventative maintenance.

      You get to keep more of the rewards with the second scenario, but it's not simpler.

    23. Re:There is already a Tesla home battery pack by swillden · · Score: 1

      I know 20+ people who have installed solar on lease options like this, and all of them report paying significantly less, net, for their electricity -- even though the lower cost per kWh has resulted in increased consumption. And this in an area where the power company pays basically nothing for power generated in excess of power consumed (unlike other areas where peak-time generation can be very lucrative).

      --
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    24. Re:There is already a Tesla home battery pack by WindBourne · · Score: 1

      Actually, we have solar city on our roof, and we love it. Other than summer, we pay just around 90 for our electricity. BUT, in the summer, we have $200-250 electric bills for 3-4 months depending on heat, etc. With the solar, we pay 100/month. Period. In addition, in jan, we were at about the right amount, but in feb, we sold 244 KWH back to Xcel. For march, it appears that we will sell back some 500-600 KWH.
      Now, to be fair, we had in-laws here all last year, and they gone. In addition, I replaced nearly all of our incadescents and CFL with cree LEDs.
      As such, our bill is down quite a bit. BUT, within another year, we will have a tesla. At that time, we will still very likely be paying 100/month.
      Finally, when the tesla comes, we will pull 3 circuits from the box and put them in a different box, and then power these via solar/battery when our power goes out (and it does).

      So, you may not like them, but it is working great for us.

      --
      I prefer the "u" in honour as it seems to be missing these days.
    25. Re:There is already a Tesla home battery pack by WindBourne · · Score: 1

      That payback depends on where you live and how much you use. Personally, we are fine with it. In fact, we will likely buy it out in 4.5 years.

      --
      I prefer the "u" in honour as it seems to be missing these days.
    26. Re:There is already a Tesla home battery pack by WindBourne · · Score: 1

      yes, but, considering that if you do not use the electricity, the excess is bought by the electric company means that you have deal.

      --
      I prefer the "u" in honour as it seems to be missing these days.
    27. Re:There is already a Tesla home battery pack by viperidaenz · · Score: 1

      Stop being a retard, you pay less than the utility and you don't have to pay for the installation.
      You save money.
      The company makes money.
      The utility may lose money or may save money, depends on the price they pay for power and the cost of production.

    28. Re:There is already a Tesla home battery pack by Ol+Olsoc · · Score: 1

      There is the letter of the law and there is what is right.

      There are a lot of things people CAN do... They just shouldn't

      You mean like banning sales of Teslas in some states because the "Normal' car dealerships won't allow it?

      --
      The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
    29. Re:There is already a Tesla home battery pack by Ol+Olsoc · · Score: 1

      Stop being a retard, you pay less than the utility and you don't have to pay for the installation. You save money.

      Dude, this is slashdot. We've become the home of the ultimate reactionaries. Whatever the headline or story is, it pisses everyone off. Then they have to figure out why.

      --
      The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
    30. Re:There is already a Tesla home battery pack by Jeremi · · Score: 1

      NOT zero outlay. you still pay just about what you'd have payed the utility anyway...

      Not if your roof has good sun. My condo building's HOA (in Southern California) was previously paying the local power company about $1000/month for electricity. We had SolarCity install solar panels on the roof under a Power Purchase Agreement; now we pay about $750/month for electricity. So that's about $12,000 in savings since 2010, and the HOA never had to spend a dime.

      And they get to build an indistrial plat in and about your property

      Yes, they got to install their solar panels on our roof. That hasn't been a problem for anyone.

      --


      I don't care if it's 90,000 hectares. That lake was not my doing.
    31. Re:There is already a Tesla home battery pack by Anonymous Coward · · Score: 0

      that some idiots are put off buying a house

      in general, solar panels add to the value of a house. see this study : http://www.nber.org/papers/w17200

    32. Re:There is already a Tesla home battery pack by Anonymous Coward · · Score: 0

      How is it unfair? It's debt slavery. The technology prices everyone out of the market so the rich can own it and reap all the benefits for themselves, while allowing a tiny little bit of the increased productivity to trickle down to those whose roofs they are occupying. Fuck that.

    33. Re:There is already a Tesla home battery pack by Teancum · · Score: 1

      I wouldn't call it a scam, but most of the electricity infrastructure is based on the model that you have a massive central power plant and a series of ever decreasing stages for smaller consumption purposes that ultimately terminate with a consumer electronic device or a light bulb (still a major consumer of electrical power). What this kind of arrangement requires is for the infrastructure to be able to feed power within that small sub-grid from one producer to one consumer, or better yet feed the power back upstream to other users. This is where the real problem lies.

      There is also the problem of power companies selling power at retail prices (which accounts for all of that infrastructure... some of which isn't needed for major industries who legitimately get a price break by consuming large quantities of electrical power at wholesale prices as that industrial plant deals with the infrastructure needed to run the lights or other individual appliances), and then having those same companies expected to buy back power at the same retail price level. It is possible that simply to be connected to a power grid there might be a monthly fee dedicated to paying for the distribution infrastructure, and that different tiers of payment for power generated could be established for residential power generation vs. large plants (including solar & wind farms).

      Legitimately there are many neighborhoods in California that the neighborhood as a whole is a net electricity producer, so that whole centralized distribution also needs to deal with what happens when too much power is being generated. It is entirely possible that a power company may have to shut down every power plant in their distribution system and then still need to dump the power generated somewhere.... usually into some massive resistors that simply generate a whole bunch of excess heat that does nothing useful. While not entirely a brand new problem (some very long distance distribution lines can also generate electricity simply by having the Earth spin on its axis during a solar storm, pick up the power from the high power long distance lines), this is something that definitely needs a different kind of infrastructure in place.

      The battery packs can help in this situation too, or some other power storage system. A utility company near where I live wants to pump water from a large lake into a reservoir as a form of energy storage, and then use hydro-electric power generation to retrieve the power when needed. It is meeting some huge resistance from local residents mainly because the power storage isn't being used locally not to mention that it will do some massive environmental damage, but the idea is being floated around as an alternative to the Li-ion cells. That also is a kind of infrastructure cost that needs to be considered, where you might be able to have a centralized power storage system instead.

      There are no simple answers to any of the problems being offered, and I think it is disingenuous to suggest that it is a scam. Even companies like Solar City or others that offer home solar power aren't scams, but there definitely are some political considerations to be made.... including some concessions by the major utility companies that their distribution model is not needed any more and instead something different needs to be developed at the same time the existing grid is maintained.

      This really is more like the transition from horse-drawn vehicles and massive canal works to something more like paved roads leading to the Autobahn or Interstate Highways. The basic infrastructure how it was used in the past can still be used that way but new things are now connecting to the power grid in ways that it wasn't intended when it was built... and the infrastructure needs to cope with the changes. That takes some effort on the part of the public, legislators, utility companies, and a legitimate need to address the very real problems that are happening so buck passing on the problems doesn't keep going on.

    34. Re:There is already a Tesla home battery pack by thegarbz · · Score: 1

      It's no more a scam than someone lending you money. They are providing a service that fits a niche.

      If you can afford the panels, buy the system outright.
      If you can't afford the panels get finance so you can buy the system outright and then pay back interest on the loan.
      If you can't get finance or don't want to pay interest on the loan and can't get it outright then someone is offering to rent your roof-space.

      What's the scam again? There are no subsidies due to the homeowner. The subsidies are due to the person who installed solar. If anything this is a great system which puts more panels on people's roofs (exactly where they should be since it's insane to put PV out in the desert where you suffer from transmission losses) as they can offer solar to people who otherwise wouldn't do it.

      It's a win-win for everyone. Electricity costs are lower, carbon emissions are lower, and I wasn't going to do anything with my roof anyway.

    35. Re:There is already a Tesla home battery pack by thegarbz · · Score: 1

      Trading one master for another to get power is pointless.

      You wouldn't say that if one master beat you with a wooden spoon and the other one whipped you with a cat-o-nine-tails. There's a lot of variation between being a master to an wallet emptying dirty corporation and being independent.

      My in-laws power bill has dropped by more than half and after 5 years they will own their panels. I think that is well worth the "change in master".

    36. Re:There is already a Tesla home battery pack by Wycliffe · · Score: 1

      Uhhh... it's unfair in that solarcity uses the tax benefit/subsidies due the homeowner

      The homeowner still benefits by getting a cheaper rate than they would otherwise and although their rate isn't directly
      regulated, they stay below the price of the utility company that is. I think it is a win-win.
      As the average person only stays in their house 5-6 years, it doesn't make sense for them to make a 20 year investment
      in their house. It makes much more sense for a 3rd party to install/maintain the equipment and put a lien against the house.
      Then when you go to sell the house, the incoming buyer is still just looking at 2 fees (rent + utilties) where in this case
      the utilities might be on your roof and might eventually go to zero.

    37. Re:There is already a Tesla home battery pack by Wycliffe · · Score: 1

      How is it unfair? It's debt slavery. The technology prices everyone out of the market so the rich can own it and reap all the benefits for themselves, while allowing a tiny little bit of the increased productivity to trickle down to those whose roofs they are occupying. Fuck that.

      How exactly is it debt slavery? They are paying you.
      It's no different than you signing a lease to let someone live in your attic.

    38. Re:There is already a Tesla home battery pack by Anonymous Coward · · Score: 0

      Don't forget that they also provide the financial services and then sell the securities - so they are biting the apple as many times as possible. They're setting a precedent though... you have to be inherently evil in order to compete in american business these days it seems.

    39. Re:There is already a Tesla home battery pack by bferrell · · Score: 1

      Not rent. Mortgage. The additional lien/contract can make the home more difficult to sell.

      *might* is an interesting word. I *might* win the lottery... It's unlikely, but it *might* happen.

      In the mean time, we have an unregulated corporation with their hand in the consumers pocket for the lifetime of the rooftop lease (20 years).

      The equipment, if purchased outright with all the incentives available, is paid off in 7 years or less... At which time, the energy would be truly free to the consumer and the installation becomes a powerful asset when it comes time to sell the property vs a contractual liability to be navigated and re-negotiated. Generally speaking, property improvement loans are paid off at the time a property sells and the new owner is now running without an electric utility bill. How's THAT for a selling point even at a 5 to 6 year occupancy estimate?.

      Someone mentioned greed. The first scenario looks like corporate greed to me (and swapping one corporate "master" for another). The second looks like independence to me. Both are debatable as to how green (what IS the carbon/environmental footprint of panel/battery manufacture anyway?)

    40. Re:There is already a Tesla home battery pack by bferrell · · Score: 1

      Yeah, like that... And while it seems a whole different issue, it's really not. It's ultimately all about the power of money and do we really want to feed and help grow corporations?

    41. Re:There is already a Tesla home battery pack by stoatwblr · · Score: 1

      "It is possible that simply to be connected to a power grid there might be a monthly fee dedicated to paying for the distribution infrastructure"

      This has already happened in the UK (and a number of USA jurisdictions. Supply and usage charges are separated. (The net effect is a substantial increase in pwer charges over the last few years, but if you generate, you don't get credits on the supply charge)

  3. So if they (GM/whomever) wanted to buy the company by JerryLove · · Score: 1, Interesting

    First they would need to lower the stock somehow... perhaps sewing FUD over 2 fires. If that doesn't work, maybe some campaign about how bad batteries are. That would make them aquireable... if it worked.

  4. Panasonic by AmiMoJo · · Score: 5, Informative

    The gigafactory is basically a Panasonic battery factory. Tesla is involved because they want it in the US and are a major consumer of Panasonic batteries, but all the tech is Japanese. So yeah, Panasonic is in the grid storage business. They do home battery packs and wind farm output smoothing in Japan, and maybe soon in the US.

    --
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    SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    1. Re:Panasonic by Ralph+Wiggam · · Score: 5, Informative

      Tesla is putting up something like $2B of the total estimated $5B price tag. So they would be a partner, not just a consumer.

      But you are correct that US news outlets were overplaying Tesla's involvement in the project and underplaying Panasonic's.

    2. Re:Panasonic by WalksOnDirt · · Score: 2

      The current Tesla cells are too expensive for grid storage. Nickle and cobalt are not cheap. Nothing says they can't make two types of batteries though, nickle cobalt for cars and manganese dioxide or iron phosphate for the grid. Or they could have a nice lithium sulfur chemistry they could use for both; there has been a lot of recent development in that area.

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    3. Re:Panasonic by Anonymous Coward · · Score: 0

      I am sure that this idea is completely new and unquestionably successful.

    4. Re:Panasonic by AmiMoJo · · Score: 4, Interesting

      In 15 to 20 years time when "worn out" Model S battery packs start to become available I expect one of the main applications will be storage for domestic solar installations that can tolerate having only 70% capacity remaining. Tesla have said they estimate a 250,000 mile lifespan for their packs (down to 80% capacity), and offer an 8 year unlimited mileage warranty that seems to back that up (averaging 15k/year for 8 years is 120k miles, but some people do double that).

      Japanese manufacturers already offer this.

      --
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      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    5. Re:Panasonic by St.Creed · · Score: 1

      Very likely. Especially since it seems that Prius battery packs are holding up even better than expected, I'd expect the same from the Tesla packs (unless they use a different type of battery), and buying an older one for a low price seems like a good idea if you need the storage.

      Unfortunately my roof is pretty unhelpful as regards solar panel placement. I have a large flat roof in the shade. Otherwise I'd have already installed solar panels.

      --
      Therefore, by the (faulty) logic you're using, you're just a cow with a keyboard - osu-neko (2604)
    6. Re:Panasonic by snsh · · Score: 1

      Not to mention, batteries for cars are are optimized for weight, while batteries for grid power are optimized for everything but weight.

    7. Re:Panasonic by viperidaenz · · Score: 1

      The Prius used NiMH batteries, Tesla use lithium.

    8. Re:Panasonic by AmiMoJo · · Score: 1

      Give it time. Eventually the panels will be so cheap every roof will have them, even the less than optimal ones.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    9. Re:Panasonic by robot256 · · Score: 1

      Well, to be fair, Panasonic would not even consider building the plant as described if Tesla weren't providing the primary demand projections. Latest reports were Panasonic was still a little hesitant to go in whole hog, which is why Tesla is making so much noise trying to win them over.

    10. Re:Panasonic by robot256 · · Score: 1

      Not to mention, batteries for cars are are optimized for weight, while batteries for grid power are optimized for everything but weight.

      Batteries for cars are optimized for weight, size, power delivery, low maintenance and cost. Batteries for grid storage are optimized for power delivery, low maintenance and cost. Size and weight are bonuses that make them cheaper to deploy (less land/manpower). So they really aren't as different as you make out.

      No utility in their right mind is going to deploy billions of lead-acid cells that will need constant watering and replacement in 5 years when they could buy EV batteries cheaply (due to combined scale of manufacturing and/or reuse) and leave them in place for 20 years.

    11. Re:Panasonic by wchin · · Score: 3, Interesting

      At the cell level, Tesla is probably already paying under $250/kWh. Maybe even just under $200/kWh. That's below most lithium iron phosphate battery costs which are already competitive with lead acid batteries for total life cycle costs in an off-grid solar battery setup. So this "too expensive" comment is probably not right. Further, if they recycle battery cells from transportation use to grid storage use, then the costs could be far lower.

    12. Re:Panasonic by blindseer · · Score: 3, Interesting

      I had a discussion with a coworker about the viability for solar power and out of that discussion came a challenge to find out what it would cost for a solar power system for a home. Taking up the challenge I spent a weekend doing the math on what it would cost to take my house off-grid and live off a solar and battery system. What I found was that it would cost ten times what I pay now for electricity.

      What I worked with was the going average cost of common lead-acid batteries for storage, the estimated cost of common solar panels, and the electronics to make it all work. It's been a while since I did this research and I'm not sure if I assumed three or four days of electric storage. If we assume just one day of storage, which means no backup for a stormy day, then I might be able to halve the cost of the system but that still only gets us to five times the cost of utility power.

      I calculated that if I cover my entire roof with solar panels that even in the winter I'd have enough power to run my home, assuming average power usage, excepting big power items like stoves and clothes dryers, I assumed that such items would be run off of natural gas. In the summer I'd have a glut of power, enough to run an electric car.

      For a moment let's assume you are correct and prices come down to where everyone would rather buy solar panels and a battery pack for their home than rely on utility power. What happens for extended periods of poor weather? People would have to have either utility power for that or, I assume more likely, a backup generator. A utility is going to want a monthly service fee for the wire to the home even if no power is consumed, at least that is how I pay for my natural gas service. A generator isn't free either but we are assuming the total cost is still in favor of solar panels on every rooftop.

      What other question I have is how much material will this take? That's a lot of valuable metals in people's basements, or placed on a grid for utility provided storage. I recall seeing someone that did the computation and for grid storage for the entire USA it would take a battery the size of Oklahoma that was two stories tall. Perhaps I recall incorrectly, I'm probably off by an order of magnitude or two but the battery had to be huge.

      If your prediction does come true I don't see that happening for a very long time. Solar panels and batteries have a long way to go until they are cheaper than coal and natural gas. I think we will have nuclear power cheaper than coal first.

      --
      I am armed because I am free. I am free because I am armed.
    13. Re:Panasonic by Green+Salad · · Score: 1

      Yep. Re-purposing is potentially way more efficient than recycling. There's no AC power running to my tool shed. Yet, flick a standard light switch just inside the door and LED lights come on. I recycle less-efficient "worn" solar panels and "worn" laptop batteries by re-purposing them to less demanding tasks.

      I'm far from a hippie or greenie. I just love to tear things apart, tinker, learn and redesign with items that would likely have been trashed.

    14. Re:Panasonic by Green+Salad · · Score: 2

      Please mod parent up as interesting.

      I went through a similar exercise for my house, but my goals were different. I want some things to keep chugging during a power outage or brownout. I wanted some lights (not all of them) to keep working during a power outage. I didn't seek to totally power the house, but to independently power (and self-contain) a few subsystems to eliminate wires and some panel circuits. (low-power IT gear, outdoor LED floodlights, air-exchange vents, attic vents) I also didn't seek to sell power back or store much of a reserve. Apparently, this is an unusual approach.

      Recalling that rescue workers dealing with Prius might not know if a vehicle is de-energized, one of the thoughts that went through my mind is that an electrician or fireman might think that by cutting off power at the breaker, they can assume the entire house and all subsystems are de-energized. I wonder if their procedures involve checking for alternate sources of power such as checking for solar panels and uninterruptible power supplies. A Prius or Tesla is a distinct shape that can serve as a warning. My house isn't distinctive. Fortunately, a power outage happened and I had to run around the house silencing UPS alarms. Problem solved.

    15. Re:Panasonic by Teancum · · Score: 1

      Where it becomes flat out obvious to use a combination of a small wind far + solar power + some sort of power storage (a water tower works surprisingly well if you don't want to mess with different battery types and hydro-electric power plants are incredibly efficient) is in a rural area where you need to pay the power company to string miles of aluminum wire + power poles (and maintenance of all of those poles from hazards of nature & people) from the nearest distribution point. Going off the grid definitely makes sense when you aren't even on the grid in the first place. Just ask the folks at Black Rock City, Nevada.

      As a supplement to power generation, home solar panels on a limited basis really do make sense though. You might want to check on the price of solar panels, as they've gone down in price in terms of $$$/watt so it might make sense to start building some on your roof to cut costs. Quite a bit of power consumption in a typical city happens during the day, which is precisely when solar panels are at their peak power production as well. The problem comes when you cross the threshold and are running the power meter backward, thus selling power back to the utility company.

      Lead-acid batteries are used for automobiles for two huge reasons: 1) They are incredibly cheap 2) the long-term power storage requirements of an automobile aren't particularly high anyway. An automobile only needs a bunch of amps for power when the starter motor needs to crank the rest of the engine, then the generator takes over (which is when you would typically run the rest of the accessories). It is a completely different situation for a home power system, where you could certainly use other forms of power storage. This could include flywheels (something horrible to use on an automobile even though most internal combustion engines still have some smallish flywheel simply to operate) or some other kinetic energy storage system in addition to something like a battery pack.

      At least we aren't using Leyden Jars for energy storage any more. There definitely have been some advances in electrical storage technologies over the years.

    16. Re:Panasonic by Barsteward · · Score: 1

      " I have a large flat roof in the shade." - have you got space in the garden?

      --
      "The hands that help are better far than lips that pray." - Robert Ingersoll (1833-1899)
    17. Re:Panasonic by TClevenger · · Score: 1

      In 15 to 20 years time when "worn out" Model S battery packs start to become available I expect one of the main applications will be storage for domestic solar installations that can tolerate having only 70% capacity remaining.

      Or even just regular UPS systems. A battery pack that a Tesla owner throws away because it's down to 15kWh will power my server room for 90 minutes.

    18. Re:Panasonic by AmiMoJo · · Score: 1

      Your numbers are way off. For a start no-one would use lead-acid batteries these days, they would be used (probably recycled) NiMH or low temperature sodium sulphur batteries. Those are the most common types used in Japan, where the technology is much more advanced and space is at a premium. You certainly wouldn't need a battery "the size of Oklahoma", it's just insane. A typical home battery is about 1x1x0.3m.

      Solar PV is improving quickly and now uses few rare metals, hence the low price. A lot of what goes into them is recycled anyway. Eventually organic cells will be good enough and cheap enough for widespread deployment anyway.

      I never suggested anyone go off-grid either, but any connection costs can be more than covered by feed-in tariffs on any excess you produce. One reason that some German cities are looking to buy their electricity grids is so that they can reconfigure them to better support small scale generation and feed-in.

      Gas in the US is really cheap, although it is worth pointing out that it is partly due to the cost of fracking being externalized. In Europe that won't be allowed to happen so fracking isn't going to bring prices down to anything like US levels. In fact it may just maintain current prices rather than bring in any appreciable reduction. Even so, there are reasons to use solar, especially solar connected to the grid.

      To be honest I thought you might be a troll when you suggested going off-grid and using lead-acid. I never said that and it is a typical tactic used by sceptics (picking the most extreme and hard to meet conditions), but I'll give you the benefit of the doubt.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    19. Re:Panasonic by AmiMoJo · · Score: 1

      In most places when you have a solar system you are required to have an easily accessible cut off switch, and if it isn't by the main breaker there must be a clear sign there pointing to it. Maybe there was some confusion when the Prius was new but even back then EVs and hybrids were not new, and these days every fire department will be aware of the safety standards covering them. One of the biggest safety requirements is that the body of the car does not carry dangerous electrical potentials in the event of a crash.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    20. Re:Panasonic by dj245 · · Score: 1

      =...

      Recalling that rescue workers dealing with Prius might not know if a vehicle is de-energized, one of the thoughts that went through my mind is that an electrician or fireman might think that by cutting off power at the breaker, they can assume the entire house and all subsystems are de-energized. I wonder if their procedures involve checking for alternate sources of power such as checking for solar panels and uninterruptible power supplies.

      The typical procedure in industry is to put a very large and very prominent warning label on the panel cover- "THIS PANEL ENERGIZED FROM MULTIPLE SOURCES", and then list the panel #'s which power the subject panel. I assume this is compliant to OSHA and NEC standards since I have seen this approach in many different places.

      --
      Even those who arrange and design shrubberies are under considerable economic stress at this period in history.
    21. Re:Panasonic by blindseer · · Score: 1

      You certainly wouldn't need a battery "the size of Oklahoma", it's just insane. A typical home battery is about 1x1x0.3m.

      To power the entire USA overnight you'd need a battery somewhere on the scale of Oklahoma. I my calculations I figured a battery the size of my desk, 1x1x2meters, but I also computed a size to last through common Midwestern winter storms that can leave you without sun for four days.

      Eventually organic cells will be good enough and cheap enough for widespread deployment anyway.

      Eventually we will have nuclear reactors that chew up seawater, sewage, and nuclear waste and spit out clean potable water, rare metals, and electricity. I have my own theory which we will see first.

      I never suggested anyone go off-grid either, but any connection costs can be more than covered by feed-in tariffs on any excess you produce. One reason that some German cities are looking to buy their electricity grids is so that they can reconfigure them to better support small scale generation and feed-in.

      If the grid is using natural gas for peaking power then all that solar power does is produce more CO2, natural gas turbines are not efficient but they are cheap. The solar power does not make up for the additional CO2 produced from the peak power.

      If the utility is providing battery storage instead of or along with the natural gas power then you end up with a battery the size of Oklahoma. Obviously we aren't paving over Oklahoma and turning it into one big battery pack but the scale of the battery power required is impossible, there is not enough lead, lithium, nickel, or any metal really to build a battery big enough. Putting the batteries in the basement of people's homes does not change that, the demands on these metals to make the batteries will drive prices through the roof.

      The only way to change this dynamic is an energy source that is reliable and cheap to produce those metals, in that case solar power gets priced out of the market.

      Solar power does not work, it's too expensive. Barring some quantum leap in solar power technology it will never be cheap enough for grid power.

      Gas in the US is really cheap, although it is worth pointing out that it is partly due to the cost of fracking being externalized.

      You want to "internalize the external"? Here's one for you, people will cut down your house for firewood and kill you to eat your flesh if they get hungry enough. If we don't keep fracking for natural gas then people will get cold and hungry and do ghastly things to each other. I believe AGW is a myth but I'll tolerate it so far as we have the same goal, cheap and plentiful energy.

      I did the math on solar power many times and it never works out in our favor. Part of the problem is that solar power is so diffuse, we'd need massive amounts of land for solar power. That land could be used to grow food, and I like food. Nuclear power, if done right, is the safest power source we have. Even when done wrong its safer than most every other alternative. It's cheap and we'll never run out.

      The externals on oil and natural gas are nothing to me. If the oil goes away right now there will be war.

      --
      I am armed because I am free. I am free because I am armed.
    22. Re:Panasonic by stoatwblr · · Score: 1

      When you're stationary, _nothing_ beats large lead-acid traction batteries for longevity and low maintenance requirements. That's why Telcos still use them.

      Mass and volume efficiency are irrelevant if you're siting 'em next to a wind turbine.

      It's a different matter in your home and the economics are just in favour of not doing it, vs buying offpeak power and staying disconnected in peak hours.

    23. Re:Panasonic by AmiMoJo · · Score: 1

      To power the entire USA overnight you'd need a battery somewhere on the scale of Oklahoma.

      It isn't worth my time disputing your numbers here because it is apparent the whole thing is based on a nonsense: the idea that the whole country would be powered by solar alone. Even if you did wan't to go 100% solar for some crazy reason you already have solar thermal collectors that run through the night.

      Your maths may be correct but the premise is nuts.

      Here's one for you, people will cut down your house for firewood and kill you to eat your flesh if they get hungry enough.

      Oh, okay, you are actually insane. Well, that explains it.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
  5. Both by Anonymous Coward · · Score: 0

    This is what entrepreneurs do. He started with the car, but realized there wasn't sufficient supply for quality batteries. Like any good entrepreneur, instead of just building it as a seperate branch of Tesla, he built it to survive on it's own. I mean, you are already producing batteries, this will allow you to make sure you always have enough supply for Telsa, and to do that, the batteries have to be sold on their own. I wouldn't be surprised if he spins off renewable energy companies, as well.

    1. Re:Both by Anonymous Coward · · Score: 0

      He is not just a entrepreneur, he is Silicon Valley entrepreneur...

  6. Batteries ARE their most valuable engineering by Anonymous Coward · · Score: 0

    Seriously, the drive train, the interface, not going to be changing much. You might as well ask about their tire engineering.

    Not a thing.

    It's the batteries that matter.

    Everything else is just salad dressing.

    1. Re:Batteries ARE their most valuable engineering by WindBourne · · Score: 1

      The batteries with thermal management and electronics? Yes.
      The cells? Nope.

      --
      I prefer the "u" in honour as it seems to be missing these days.
    2. Re:Batteries ARE their most valuable engineering by Anonymous Coward · · Score: 0

      Well, maybe not Tesla's, depending on how much money they're putting into development of battery technology.

      But it's still the big concern.

  7. Tesla is a geoengineering company by Anonymous Coward · · Score: 0

    They created a device that can spin the Earth with electricity until the part you wish to travel to lies underneath.

    1. Re:Tesla is a geoengineering company by Barsteward · · Score: 1

      the earth already spins on its own, just run on the spot until you reach your destination.

      --
      "The hands that help are better far than lips that pray." - Robert Ingersoll (1833-1899)
  8. Daimler? by rossdee · · Score: 1

    ""the company's stock price is too high for Toyota or Daimler to just buy it outright"

    Which Daimler? The Jaguar witht a different badge, or Mercedes (Benz)

    the latter's hybrids seem to be doing quite well at the moment (in Formula 1)

    1. Re:Daimler? by viperidaenz · · Score: 1

      The Daimler that owns Mercedes, Smart and 4.7% of Tesla.

    2. Re:Daimler? by gmhowell · · Score: 1

      the latter's hybrids seem to be doing quite well at the moment (in Formula 1)

      I wouldn't call KERS a 'hybrid' in the same sense of the word as used in context with the Prius.

      Nor would I consider much F1 tech to be relevant to street driven autos.

      --
      Jesus was all right but his disciples were thick and ordinary. -John Lennon
    3. Re:Daimler? by Muad'Dave · · Score: 1

      Renault disagrees with you. They made "I'm gonna pull of out F1 if you don't use engine technology that is applicable to consumer autos" noises. They got their wish, with the help of the French F1 head dude Jean Todt.

      --
      Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
    4. Re:Daimler? by gmhowell · · Score: 1

      Appeal to authority. -eleventy billion Internet debating points.

      --
      Jesus was all right but his disciples were thick and ordinary. -John Lennon
    5. Re:Daimler? by Anonymous Coward · · Score: 0

      You're no authority. You haven't even taken logic so enough with your forums logic (lol).We all know you're a creepy little troll on slashdot and nothing more.

    6. Re:Daimler? by Anonymous Coward · · Score: 0

      gmhowell actually thinks we care to hear what he says. That's a laugh.

    7. Re:Daimler? by Muad'Dave · · Score: 1

      No, not an appeal to authority. I simply pointed you to an article showing that at least one engine manufacturer doesn't see the point of investing BILLIONS in F1 if the engines they're required to develop are based on normally-aspirated, relatively large V8s that are no longer in line with the direction of the auto industry. They want to be developing engine technology that has a return on investment and that is applicable to their core business - you know, road cars?

      --
      Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
  9. Religion. by Anonymous Coward · · Score: 0, Flamebait

    Tesla is a religion, and just like every other religion, its followers go off on rants about how reasonable it is, and make extraordinary claims about the quite ordinary.

  10. Better Yet by JimSadler · · Score: 3, Funny

    By covering the top of the Tesla with solar cells the cars could gather solar energy, store it and sell the excess to the power companies. Social chaos will soon follow. Just wait until the power companies have to hop scotch over homes that provide their own energy and the price of energy for homes on the grid goes through the roof. Big oil, coal, the nuclear industry as well as traditional car makers and associated trades could sink below the waves. The shifting of incredible amounts of money from those industries alone could generate financial chaos. Combined with breakthroughs like 3D printing we are entering an era in which we have no economic model to apply to this new way of life.

    1. Re:Better Yet by HornWumpus · · Score: 1

      Put down the bong, step back and think, this time with numbers.

      --
      John McAfee 'It was like that time I hired that Bangkok prostitute; to do my taxes, while I fucked my accountant'
    2. Re:Better Yet by AmiMoJo · · Score: 3, Informative

      The surface area of the roof isn't really enough to provide much solar PV electricity, but that isn't to say it can't be used for something. For a few years now Toyota have offered a solar panel on the roof of the Prius that can run the AC while it is parked without using fuel or depleting the batteries. The Nissan Leaf uses a solar panel to keep the 12V battery topped up (not the main lithium pack, the 12V vehicle power lead acid) and I'm surprised more manufacturers don't do that now.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    3. Re:Better Yet by drinkypoo · · Score: 2

      The Audi A8 was offered with a warm weather package, the sunroof goes from ordinary metal to carrying a solar panel which is used to run the fresh air blower while it's parked in the sun. Came out in 1994. Doesn't charge the battery though, which is unfortunate given how much electrical crap is in there.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    4. Re:Better Yet by jemmyw · · Score: 1

      I think you missed the sarcasm there.

    5. Re:Better Yet by Anonymous Coward · · Score: 0

      The surface area of the roof isn't really enough to provide much solar PV electricity

      Obviously it's not enough power to run the car in real time, but it could probably trickle-charge the battery while you're at work, topping up the amount you used on your morning commute (if you have a short commute). Or, if you drive a couple hundred miles for a camping/fishing retreat, you're probably not going to use the car much while you're there anyway. Over a few days it might get enough sun to cover the trip home, or at least get you to the nearest charging station.

      Another thing they could do is offer a compact, fold-up PV array that you could store in the trunk as an emergency backup. It would still take a long time to charge, but it would be nice to have.

      [taiwanjohn: posting as AC to preserve mod points]

  11. Stock price too high? by gwstuff · · Score: 2

    Facebook could have bought them instead of buying WhatsApp and Ocular, and spending just a little bit more.

    1. Re:Stock price too high? by Anonymous Coward · · Score: 0

      Yeaaaaah, no. They couldn't. Remember who runs Tesla?

    2. Re:Stock price too high? by fishybell · · Score: 4, Funny

      Yeaaaaah, no. They couldn't. Remember who runs Tesla?

      Iron man?

      --
      ><));>
    3. Re:Stock price too high? by Shatrat · · Score: 1

      But how does that help Facebook squash potential competitors and control potential market-changing technologies?

      --
      09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0
    4. Re:Stock price too high? by AmiMoJo · · Score: 1

      Not all of Musk's ideas are as brilliant as Tesla or SpaceX. PayPal is shockingly bad, and only popular because eBay forces you to use it and excludes everything else.

      --
      const int one = 65536; (Silvermoon, Texture.cs)
      SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
    5. Re:Stock price too high? by vux984 · · Score: 3, Insightful

      Paypal is a good idea, it's just a terrible company.

    6. Re:Stock price too high? by Anonymous Coward · · Score: 0

      Why is Paypal bad? It works and it works simply (I live the US, not sure if other areas have issues).

      [it's] and only popular because eBay forces you to use it and excludes everything else.

      I never use eBay but I still fairly regularly PayPal to transfer money without signing up for sites, or transfer money between friends simply (and cost free).

      Further, I don't think SpaceX or Tesla are particularly great ideas, they're just well done. An electric car and cheaper space flight - those are both triumphs of of implementation, not inspiration.

    7. Re:Stock price too high? by Anonymous Coward · · Score: 0

      Tesla was started without Elon Musk. He jumped in and became a "founder" after the fact.

  12. Maybe Alaska will be interested... by Firethorn · · Score: 1

    Anybody interested in Grid-tie utility level battery energy storage systems should look at Fairbank's BESS, a 6.75 MWh battery system that's to cover any outages until alternate power can be spun up.

    Of course, they're NiCad batteries right now, but given enough time, I can see LiIon being cheaper. Still, at $35M it's not cheap.

    --
    I don't read AC A human right
    1. Re:Maybe Alaska will be interested... by jonbryce · · Score: 1

      With a car battery, or a laptop / phone battery, you care about kWh per cubic cm. With a grid storage battery, the amount of space it takes up isn't that much of an issue, but you do care about about how much of the kWh you put into the battery you get back out, and how much it costs per kWh of storage.

  13. You need more than a battery to store grid energy by angel'o'sphere · · Score: 1

    If you want to store grid surplus energy you also need circuits to feed it nack into the grid, like DC to AC converters and transformators.
    In germany we have research projects how home owners, or more precisely residents, can connect the car to the grin in a way that the car itslef is the storage.
    Extra batteries, like Li-ion or NiCad makes no real sense. After a few years they are worn out ... for nothing but storing excess grid energy, pointless, expensive, wasteful. If it was that easy, we already would do it.

    --
    Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  14. Re:So if they (GM/whomever) wanted to buy the comp by WhiplashII · · Score: 1

    What's hilarious is that no one has seen the obvious: no company's "stock price is too high ... to just buy it"

    Company A: valued at $X
    Company B: valued at $Y

    Company A+B: valued at $X+$Y

    No one has to have the cash on hand to do a merger (the traditional form of "purchase"). If you wanted to actually make a "purchase", all you would have to do is involve a bank.

    Of course, Elon Musk has absolutely no reason to sell his company to a bunch of people that wouldn't know how to run it!

    --
    while (sig==sig) sig=!sig;
  15. Probably not by Animats · · Score: 5, Interesting

    Batteries for grid storage have different properties than batteries for cars.

    • Weight doesn't matter for grid storage.
    • Recharge time need not be faster than discharge rate.
    • Grid storage batteries should last a decade or two. Car storage batteries only need a working life of a few thousand hours.
    • Efficiency over a charge/discharge cycle matters more for grid storage.

    So grid storage tends to use different battery technologies than vehicles.

    1. Re:Probably not by Anonymous Coward · · Score: 0

      But someone blogged bout it! So obviously all your "facts" are now false.

    2. Re:Probably not by drinkypoo · · Score: 1

      Weight doesn't matter for grid storage.

      But having lighter batteries is a plus, not a drawback, even so.

      Batteries for grid storage have different properties than batteries for cars.

      And yet, using old car batteries for grid storage is Nissan's Leaf battery recycling plan.

      Recharge time need not be faster than discharge rate.

      Won't hurt though, and it may well be a benefit.

      Grid storage batteries should last a decade or two. Car storage batteries only need a working life of a few thousand hours.

      The car batteries only keep their peak charge characteristics for the first few thousand hours, but they still keep working for a decade or two.

      Efficiency over a charge/discharge cycle matters more for grid storage.

      What? Who told you that?

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    3. Re:Probably not by avandesande · · Score: 1

      Yeah using expensive lithium polymer batteries for utilities sounds like a bunch of bologna- there is a bunch of research right now going into making inexpensive sodium ion/sulfur batteries for this purpose.

      --
      love is just extroverted narcissism
    4. Re:Probably not by aqui · · Score: 1

      You are correct. the needs for a car are much much more demanding. For lead acid batteries you would also be correct in that a "starter" battery or a "marine/rv" battery need to be different design.

      However for a lithium ion battery (as used in the Tesla) this is not the case. A battery designed for the car (or your laptop) aren't fundamentally that different.
      ( http://en.wikipedia.org/wiki/L... ).

      The primary driver for grid storage is going to be different, however I bet that if you take a battery designed for the "rough and dirty life of a car"
      designed to survive: 1) high discharge (acceleration), quick charge, large temperature swings and extremes (parked in the winter, driving in the summer), and put it in a grid storage application, it won't need to be optimal, just cheap enough.

      For comparison a grid storage battery, will likely:
      1) see controlled slower charge and discharge rates
      2) live in a close to constant temperature basement or battery room (think insulated shed or pit with a roof) (ok it might get warmer, but will likely be a good 10C above freezing)
      3) it will see one nicely controlled charge and discharge per 24 period.

      The Telsa can drive ~250 miles per charge cycle with 250 000 miles to 80% capacity then that's a 1000 cycles or ~ 3 years. Even if the battery works for another 3-5 years with a capacity of 50-80% it will be viable for energy storage.

      Since weight and space doesn't matter much for stationary batteries, all that will matter is price.

      If there's one thing we know from manufacturing history is that higher volumes bring significantly lower price.

      Grid storage is already viable now using other methods (hydraulic pump + turbine stations) and likely will find ready markets.

      I'm guessing that what Telsa is looking for is two things:
      1) Economies of scale to make cars cheaper and
      2) after life use of their car batteries (before recycling) which will make the cars cheaper again if the battery has a resale value (and a market)

      I think its a smart move.

      --
      ----- "Profanity is the one language that all programmers understand."
    5. Re:Probably not by Anonymous Coward · · Score: 0

      I posted a brief list of some interesting new storage technologies last week:

      There have been MANY teams working on this, for several years, with lots of VC/R&D, and several new products are going to hit the market it the next couple of years: liquid metal batteries, sodium ion batteries, compressed air storage, sodium air batteries, artificial leaf, another artificial leaf, flywheels, super-capacitors, etc... Most of these are intended for grid-level storage, but a few are quite suitable for transportation as well. In particular, sodium-air batteries have the advantage of light weight, since one of their reactants (air) is available on the fly. And the two "artificial leaf" technologies can be used to create fuel from sunlight.

      [posting as AC here, to preserve mod points]

  16. Re:So if they (GM/whomever) wanted to buy the comp by GodfatherofSoul · · Score: 2

    That's all fantastic in your zero mass-zero friction theoretical land, but if you can't get financing based on not having enough value in your company that's the same thing as a stock price being too high. Otherwise, I'd be able to form a company tonight and buy Microsoft.

    --
    I swear to God...I swear to God! That is NOT how you treat your human!
  17. Re:You need more than a battery to store grid ener by GodfatherofSoul · · Score: 1

    Easy solution, pump your car up onto the roof.

    --
    I swear to God...I swear to God! That is NOT how you treat your human!
  18. Giga market play by ElitistWhiner · · Score: 2

    The real position in play is abstraction over the GRID and selling it back as a viable business model. EV's are transitional technologies on the way to the future. Tesla cars are proof-of-concepts that a future can work without petroleum dependancy. They spotlight those millions of tailpipe emissions which only electric and hydrogen eliminate.

    Power markets refuse to invest in the capture of smokestack emissions at source so the exercise Tesla is running remains retail only. When hydrogen competes with electric fuel cells that day will mark petroleum's last tailpipe gasp. Then emissions at the smokestack are all that's left to capture then.

    Tesla will be there and in position to sell you power for your business, home or car in whatever form required from an eco-conscious GRID that puts the cost of capture into the end product and puts producer's responsibility back onto the consumer end user.

    1. Re:Giga market play by robot256 · · Score: 2

      Fact: The U.S. power grid has continually reduced its overall emissions for decades now.

      Fact: Electric vehicles produce less overall emissions than a 35mpg car, even on the dirtiest grid in the U.S, and most EVs are operated on much cleaner grids.

      Fact: Over 1/3 of EV drivers own enough solar generation to offset the power used in their cars, making them truly zero emissions.

      Zero-emissions electric vehicles exist now, if you have the money or lifestyle to fit it. I too think it will be a great day when hydrogen cars actually compete with battery-electric vehicles. But the obstacles we have to solve before then are many:

      1) invent a way to convert electricity into hydrogen that actually approaches the efficiency of batteries, if not equaling it, instead of making it out of methane like we do now or wasting half your power in electrolysis.

      2) build hydrogen fueling stations everywhere before a solid base of users exists to pay for it.

      3) convince the public that hydrogen cars won't explode like the Hindenburg (stupid but important).

      4) make them cheaper than an equivalent battery-electric car, because by the time all that gets done BEVs will be so far ahead you will wonder why you bothered with hydrogen at all.

      Once Tesla has created a super-cheap source of grid storage batteries, everyone with an electric car can get solar and go off the grid. Then the power plants and centralized distributors will be forced to shut down. Then local grids will spring back up so people can use communal backup generators on cloudy weeks, but we will never again need the complex monstrosity of our present power grid because all generation will be local. We already have new factories installing enough solar and wind to power themselves, so it's only a matter of time before the grid becomes redundant and uneconomical to maintain.

    2. Re:Giga market play by Anonymous Coward · · Score: 0

      Industrial power is still necessary, all the datacenters, manufactories, and industrial processing will require powerplant-level power. However, I could easily see the construction of new plants cease, and possibly even plants close in your scenario. But some plants will always remain.

    3. Re:Giga market play by Anonymous Coward · · Score: 0

      They will become self reliant...

    4. Re:Giga market play by rahvin112 · · Score: 1

      Hydrogen isn't even close to petroleum's last gasp. 99% of that hydrogen is going to be made by reforming natural gas and other fossil fuel feed stocks.

      Why do you think the Bush admin pushed hydrogen so hard?

  19. Re:So if they (GM/whomever) wanted to buy the comp by ganjadude · · Score: 1

    exactly, look at comcast TW issue, the deal is for billions in stock, no cash at all

    --
    have you seen my sig? there are many others like it but none that are the same
  20. Grid storage priorities by Firethorn · · Score: 1

    I'm not sure why you posted this, I didn't make any mention of size, weight, or efficiency. Still, to expand -

    Grid storage is indeed not very concerned with size(volume, weight), but are interested in overall cost and efficiency. Everything I've read has LiIon being not just top of the line for energy density, but also comes out high for energy efficiency - this is where lead-acid tends to fall down. It's energy efficiency tends to be about equal to the Nickel chemistries - NiCad and NiMH.

    I mentioned the price because LiIon has been becoming cheaper per joule per years, when the nickel in NiCad batteries has been increasing in price, driving up the cost of battery chemistries that use it. NiCad is still cheaper, but for how long? Musk is planning on chopping the cost of LiIon in half again with this factory.

    The BESS ended up being $5 per watt-hour, but it's a complete UPS system. We don't know how much the batteries/chargers were specifically and how much was the facility and AC generation equipment.

    --
    I don't read AC A human right
  21. Re:So if they (GM/whomever) wanted to buy the comp by Anonymous Coward · · Score: 0

    It's the new and flashy technology. People are going to pay attention to it unlike the rest of the technology that has existed for their entire lives. If it wasn't for Tesla's flash and cutting edge technology they wouldn't make page 10 in section C of the New Crap Times. With the good comes the bad.
     
    Get over it.

  22. Re:So if they (GM/whomever) wanted to buy the comp by WhiplashII · · Score: 1

    Your inability to buy Microsoft has nothing to do with Microsoft's stock price being "too high." And if you could convince a) Microsoft, and b) a bank (or the markets) that you could run Microsoft better than the current management the money would not be a significant hurdle.

    --
    while (sig==sig) sig=!sig;
  23. Tesla Cars are Grid Storage by HizookRobotics · · Score: 2

    If Tesla makes the cars' power bidirectional, the excess capacity of cars plugged in for recharging (essentially) becomes a grid-connected battery itself. I recall seeing homebrew electric cars used as "generators" during brownouts a few years back. Tesla could do this on a massive scale using individuals' cars -- and pass some of the gains (peak power) back to the car owners.

  24. Not Rightly. Just Mightly. by Anonymous Coward · · Score: 0

    Most assuredly. Perhaps. As the sideshow-like oil industry must have developed a secret plot to substitute culking and axle grease sales to the Navy and take over the cart and buggy market.

    And laughably try to oppose with their puny "kerosene", the huge and unbreacheable whale oil cartels, while underhandedly aspiring in reality to corner the essential oil lantern sector - imposing their untested and entirely unreliable "kerosene lamps". All in one breath.

    That will not, 'Sur', I repeat, will not aspire to happen! The very idea deigns to invoke nothing but the most guileless mirth. If not derision.

    Still blindered and stuck on that batteries thing, eh?

    1. Re:Not Rightly. Just Mightly. by robot256 · · Score: 1

      If you're saying that a start-up energy technology that was poo-pooed by analysts for years could actually succeed in upending dozens of entrenched industries, then batteries seem like a pretty good way to go. The oil industry doesn't have a monopoly on Machiavellian corporate tactics.

    2. Re:Not Rightly. Just Mightly. by Anonymous Coward · · Score: 0

      As an energy analysis, oil industry is Kodak because oil is like photographic film. Tesla is like MSFT/AAPL/GOOG, evolution of the auto industry...

  25. Re:You need more than a battery to store grid ener by AmiMoJo · · Score: 2

    Nissan offers a "whole house UPS" feature for its Leaf EV in Japan. In the event of a power failure your car can run important appliances like the fridge for a few days. You can use it to reduce your energy bills by storing solar energy not used during the day too.

    --
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  26. Re:So if they (GM/whomever) wanted to buy the comp by Shatrat · · Score: 1

    Company A takes enormous write off when they finally admit they paid too much.
    Company A valued at A + log2(B)
    http://www.bloomberg.com/news/...

    --
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  27. Question in the headline. The answer is... by vakuona · · Score: 1

    ...No.

    (What was the question again?)

  28. Re:So if they (GM/whomever) wanted to buy the comp by Shatrat · · Score: 1

    Actually make that A + log2(B) - B, because A is now out the cash/stock they paid for B.

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    09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0
  29. Re:So if they (GM/whomever) wanted to buy the comp by BitZtream · · Score: 1

    You're pretty inexperienced in investment aren't you.

    You'll be pretty hard pressed to get ANYONE regardless of your 'skills' to put together a deal to LOAN you the money to buy Microsoft.

    Contrary to your theoretical little world, in the real world, people don't invest billions of dollars in random people just because they say 'I can run it better than the guy running it now' unless the guy running it now is utterly destroying it, in which case the value of the company drops considerably making it a more lucrative possibility and making the risk easier.

    There is no chance in hell that you could gather enough money to buy Microsoft as it stands, even if Ballmer was still in charge. To 'buy' Microsoft you have to buy more than half of all shares in existence, public, private, restricted or whatever. Even the slightest hint that someone was trying to do that would drive the stock price through the roof. If you started buying the stock ... again, price is going to go through the roof. So yes, your ability to buy Microsoft has EVERYTHING TO DO WITH THE STOCK PRICE BEING TOO HIGH FOR YOU TO AFFORD IT. This is basic 3rd grade economics. You have $10, You need $1,000,000,000,000. Regardless of what fantasy you live in, you aren't going to buy the product with that many zeros difference.

    In the real world, people aren't as silly as you seem to be used to in your little fantasy world.

    --
    Persistent Volume manager for Kubernetes - https://github.com/dwimsey/openshift-pvmanager
  30. Re:So if they (GM/whomever) wanted to buy the comp by Anonymous Coward · · Score: 0

    Microsoft's stock price is too high.

  31. Enough with the grid storage by blindseer · · Score: 1

    How big would a battery have to be to run the USA overnight so we can run everything off of solar power? How much material would this take? How much would it all cost?

    I've seen these numbers before and it's not good. We are going to be a coal powered nation for a very long time. I see wind power as promising, the price isn't too far off from what natural gas and coal costs. Solar is just so extremely expensive that it is only considered in the most unusual cases. Wind and solar both rely on cheap electric storage which I don't see happening any time soon.

    If people start building grid level electric storage because materials get cheap then the demand for those materials will drive the price back up. I say that instead of trying to store electricity when it's produced by unreliable wind and solar that we should develop technology so that cheap energy like coal, natural gas, and nuclear can load follow like the expensive natural gas and oil fired generators.

    If the concern is CO2 output then nothing can beat nuclear, not even wind and solar. We have drawings of nuclear power plants that can load follow, we need to make them real and see how they compare to the theory. I think nuclear the the future, not big batteries.

    For those that scream, "What about the nuclear waste?" I say look up waste annihilating molten salt reactor.

    --
    I am armed because I am free. I am free because I am armed.
  32. WRONG by WindBourne · · Score: 1

    Giga-factory is no more panasonic than tesla belongs to Mercedes and Toyota. It belongs mostly to Musk/Tesla. In addition, it is vastly re-engineered from what panasonic runs. With this factory, they will more than double the world's production of lithium batteries, while using less than 1/10 of the labor that panasonic does.

    So few ppl understand Musk, but his real claim to fame is NOT simple engineering. It is Industrial engineering. In all aspects he is looking at the economics of how this works. For example, SpaceX F9 is mostly cheap because of 10 engines all the same. In addition, how their bell is manufactured is a fraction of what other's costs.
    Tesla is the same way.
    And solar city will be either buying an American solar panel company, OR will build their own in the states, within 2 years.

    --
    I prefer the "u" in honour as it seems to be missing these days.
    1. Re:WRONG by Anonymous Coward · · Score: 0

      Giga-factory is no more panasonic than tesla belongs to Mercedes and Toyota. It belongs mostly to Musk/Tesla. In addition, it is vastly re-engineered from what panasonic runs. With this factory, they will more than double the world's production of lithium batteries, while using less than 1/10 of the labor that panasonic does.

      So few ppl understand Musk, but his real claim to fame is NOT simple engineering. It is Industrial engineering. In all aspects he is looking at the economics of how this works. For example, SpaceX F9 is mostly cheap because of 10 engines all the same. In addition, how their bell is manufactured is a fraction of what other's costs.

      Tesla is the same way.

      And solar city will be either buying an American solar panel company, OR will build their own in the states, within 2 years.

      Wow, you really make Elon Musk sound like a monster.

  33. The company I work for is using Tesla batteries... by Anonymous Coward · · Score: 0

    ...at one of our manufacturing plants. In fact we're displacing a bunch of office space for the batteries themselves.

    I expect to see it in place in the next few months.

    So, yea, I'd say Tesla is getting into the grid storage business.

  34. Coal powered, government subsidised by Anonymous Coward · · Score: 0

    How can a people be so stupid?

  35. Re:You need more than a battery to store grid ener by WindBourne · · Score: 1

    Yeah, its not like solar, wind, and micro hydro ever use DC->ac converters, and transformers.

    --
    I prefer the "u" in honour as it seems to be missing these days.
  36. Re:Enough with the grid storage RIGHT! by __aanbvm4272 · · Score: 0

    Nuclear is NOT carbon free you have to build it...with plenty of fuel burning equipment. Salt reactor? Why are not there many? Theory doesn't sell except to the unwise. Just stop using so damn much power people! Be passively cooled, heated. The existing manufacture of lithium batteries has maxed out all the resources in the world, right now. A peak has been reached. And that's why Tesla HAS to build the next big thing. They said so in their press release. They will be beginning with research and development of new power storage units and they don't even know what it is yet! They just know it's up to themselves because no one else is going to help them. I wish them luck...

  37. Close, but not quite by analien7901 · · Score: 2

    Having installed this scenario, LMFTFY: Solarcity installs a system (panels, storage, chargers/inverters) on your premises at zero cost to you. They also have options from $0 down to fully paying for the system. They get the tax subsidy offered for the installation. This is correct except where it's required by law to go to the owner of the home; I live in Oregon which has $1500/year for 4 years that is required to go to the homeowner. SC offsets this credit by charging $75/month extra for 4 years, which means I have a net credit of $600 each year coming my way. You roof is now occupied by solarcity. Yes, the roof has solar panels on it. They sell you electricity AND what you don't use, they sell to your local utility. The power back to the grid goes as a credit on your account and is pulled watt-for-watt when you use more than the solar panels can produce (aka at night). The systems are guaranteed for a certain number of watts per year and, if it comes in under that, SC actually writes you a check for the difference. You have now switched energy providers and are STILL paying power bills. Yes. You pay for the system based on the power it generates. I can't really tell if your comment here is trying to be naive; you expect a $0 down system to not charge you for the power? I fully recognize they they take on what maintenance there is on this plant... But there isn't much and they are completely unregulated. They charge the home owner whatever they please, just so it's below the regulated utility. Maintenance, hopefully, is minimal. However, they provide full insurance for the roof (where it was installed) as well as theft (apparently it's a problem). They are regulated by the contract that is signed at the beginning. The price is based on the contract; one option is to have a variable rate per year, the other is to pay (in my case $250) up front and have a fixed price for the term of the contract, which is $20 years. My price came in slightly lower than my utility company was charging at the time and is set for $20 years; this with the fact that my power company raises rates every year and is in the process to do a relatively large jump to pay for some new complexes, I think I am in a very good position. And to touch on some of your reply below this: Uhhh... it's unfair in that solarcity uses the tax benefit/subsidies due the homeowner AND has the homeowner's roof locked up under a 20 year lease? I've calculated that at retail levels, equipment costs and installation is paid off in 10 years. That's before the tax benefits/subsidies are applied. Not sure what pricing you're using; I have a 4.9kw system which would be close to a $23,000 system installed. My fixed price for 20 years is 0.0984/kWh and qualifying credits I could get is around $16,000, bringing the total cost to around $7,000 meaning 14 years before my SC would break even on a private system, after credits. And that implies you have $23,000 in cash to pay for the system. How you believe it is unfair to sign a contract, I do not know. Most tax benefits/subsidies are due to the owner of the system, not the homeowner. And the roof is not what is 'locked up', the lease and the system are. You are fully allowed to have the system moved (at cost of labor) to a new home. Now, let's add a peculiar California spin on this (my state). The utilities have been required by law to add storage capacity to the grid for something known as regulation... Fill in. This means regulating the grid up and down. When they regulate the grid up... They feed energy to the grid. Regulating down means absorbing from the grid. These activities are extraordinarily lucrative and the property owner get's none of that but it uses the "plant" they have effectively paid for. I'll reiterate that power to and from the grid is exchanged watt-for-watt. This is also why the utilities are crying foul over the lack of grid maintenance fees by the entities with this type of operation (there are only a few, but they're all big, pretending to be small). They get to act like an energy provid

  38. Re:So if they (GM/whomever) wanted to buy the comp by Teancum · · Score: 1

    I think the GP poster was pretty spot on, and it was sort of tongue in cheek in terms of the idea of buying Microsoft.

    Of course nobody in "the real world" would bother to loan some random homeless dude off the street and give them a few billion dollars to make a leveraged buyout of Microsoft. That is because no average person has the talent nor the ability to operate a company like Microsoft and have it continue to earn money for its investors (which in this case would be the bank). Besides, if the bank had that kind of money burning a hole it its pocket where a random dude could be put in charge of the company and run it, that bank would have purchased the company a long time ago and would have cut you out of the deal a long time ago.

    Also, most banks like loans for investment purposes to also have the person involved having some "skin in the game". In other words, even if you are using a bank to assist in a major financial purchase, you also need to have a substantial fraction of the company (at the bare minimum 10% of the investment capital... likely in this case more like 50%-80% for Microsoft). It isn't strictly required (sort of what you are suggesting), but it depends on how much risk the bank is willing to take with such an investment.

    On the other hand, if you were able to convince them that a leveraged buy-out of Microsoft could get you running the company and allow them to repay the loans with substantial interest + extra profits, there is no doubt that a reasonable bank would jump on the chance. The trick is convincing the loan officer (and for that kind of money, the board of directors for the bank and likely the local Federal Reserve Bank board too) that you really are the kind of person who could get the company producing profits like when Bill Gates was running the company. That has the proverbial chance of a snowball surviving inside of the Sun's photosphere for any length of time.

    Getting back onto topic, the question is if one of the other major automobile companies could do a better job of running an electric automobile manufacturing company? It should be apparent that there are some very experienced and capable people at Toyota, GM, Daimler, and Ford that could in theory run Tesla, possibly even better than Elon Musk seems to be doing so at the moment. The question then becomes one of cash flow for these major companies and if they can leverage the money needed for the purchase.

    Tesla stock prices are high enough that a hostile take-over is now simply out of the question. If Toyota was to advertise that they were willing to pay $200 per share for the company (this does happen... usually in the New York Times or Wall Street Journal when it is so blatant), odds are likely that the exchange prices will soar to $250 or more. By the time the chase is over, it is likely that Tesla would buy out Toyota instead. Sort of like what happened when Pixar bought out Disney.

  39. Re:Enough with the grid storage RIGHT! by blindseer · · Score: 1

    Nuclear is NOT carbon free you have to build it...with plenty of fuel burning equipment.

    I didn't claim it was carbon free, I stated it had the least output of CO2/watt than any other power source available to us now.

    Salt reactor? Why are not there many?

    Because the country that developed the technology, USA, has created a regulatory structure that favors solid fueled reactors. Why it is that way is a very long story. Other nations only have the papers published on the technology and therefore are a few years behind the USA on the technology but are catching up fast. Sounds like Canada will be building some very soon.

    Just stop using so damn much power people!

    Tell that to the people that live in mud huts. If this technology gets developed we can turn seawater into clean fresh water and electricity, and do so at a profit.

    You seem to think that there is some inherent evil in consuming energy, I do not believe so. There is almost always room to improve energy efficiency but we need energy to feed, clothe, and shelter ourselves. Once we are warm, fed, and happy we need energy to communicate, learn, and explore. We are not going to land on the moon with solar panels. Windmills won't make airplanes fly.

    Without nuclear power we revert to near caveman lifestyles. Without nuclear power we need to burn things, wood, coal, whatever. Civilizations have ended because they had to choose between getting apples from the tree in the spring or burning it to survive the winter. That generally works for all bio-fuels, we get to eat OR stay warm. We can't have both if we burn our food.

    --
    I am armed because I am free. I am free because I am armed.
  40. Cheaper than Grid? by Anonymous Coward · · Score: 0

    I run a regular household with 42" tv, Double-door fridge, electric oven and computers etc. off he grid since 2008 in Spain. Utility prices have skyrocketed here some 30% over the last 2 years. The investment in the system, with some expansions over the years has been less than 20.000 USD. The panels will live far beyond me but let's put them at 30 years. The regular Lead Acid batteries steadily decline with each cycle and will become unusable (expected) in 4-5 years. At a cost of 5000 USD, rougly every 10 years. The electricity cost of houshold as big as ours for people in this area ranges between 200-250 USD per month. Yes there is a generator which gets about 500 liters of Diesel every year (@1.80 USD).

    1900 : 2400 at the current rates...And my power is more reliable than the grid here ;-)

  41. Re:You need more than a battery to store grid ener by angel'o'sphere · · Score: 1

    Erm, hydro uses DC/AC converters, or wind for that matter? Thats new to me. Also it is a slight difference if you have _one_ transformer for a plant yielding a few hundred or thousand MW, or if you need a transformer for every small battery storage of a few kWh of storage.

    --
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  42. Tesla havin problems keeping up battery production by Anonymous Coward · · Score: 0

    So when they wear out 4-5 years (and go downhill in capacity along the way ontop of accelerated loss in extreme weather(merely freezing temps )
    You get to pay premium prices for the replacements.

    Used Cars -- same issue whopping bill if that used car is about due for battery replacements - some significant percentage of the NEW price.

    Bet that dealer never told you all these things....

    Dont forget to check the carbon footprint of producing all those replacements you would need over the lifespan of the car.
    I wonder if the toxics require the old ones to be dumped down in Mexico like lead acid batteries are?

  43. Did you take new construction into account by Anonymous Coward · · Score: 0

    From several account I have read the power companies charged around $25,000 for a new drop to be installed about 100' from the existing road lines. Now consider building 300' from the existing road lines, does cost go to $75,000 for just wire to the meter and installation? How many solar panels can you get for $25,000? or $75,000?

    Now keeping in mind that most panels have a 25-year guarantee on output and initially out produce that rating.

  44. Inverter to power critical appliances isn't that n by Anonymous Coward · · Score: 0

    Several people have used 1970's era GE Elec-trak tractors to do the same thing in emergencies, and that is with lead-acid batteries.