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Tesla To Construct 'Virtual Solar Power Plant' Using 50,000 Homes (cleantechnica.com)

Long-time Slashdot readers denbesten, haruchai, and Kant all submitted this story. CleanTechnica reports: Tesla and the government of South Australia have announced a stunning new project that could change how electricity is generated not only in Australia but in every country in the world. They plan to install rooftop solar system on 50,000 homes in the next four years and link them them together with grid storage facilities to create the largest virtual solar power plant in history. And here's the kicker: The rooftop solar systems will be free. The cost of the project will be recouped over time by selling the electricity generated to those who consume it.

"We will use people's homes as a way to generate energy for the South Australian grid, with participating households benefiting with significant savings in their energy bills," says South Australia's premier Jay Weatherill. "More renewable energy means cheaper power for all South Australians..." Price predicts utility bills for participating households will be slashed by 30%.

Electrek reports that the project will result in at least 650 MWh of additional energy storage capacity, and Tesla points out that "At key moments, the virtual power plant could provide as much capacity as a large gas turbine or coal power plant."

108 of 199 comments (clear)

  1. Interesting Idea by Ferretman · · Score: 1

    I suspect it may take longer to recoup the costs, but perhaps not.

    Ferret

    --
    Sic gorgiamus allos subjectatos nunc
    1. Re:Interesting Idea by LynnwoodRooster · · Score: 2

      Coal goes offline - that's why we have natural gas peakers and backup turbines, so we can generate that 100 MW for more than 5-10 minutes at a shot...

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
    2. Re:Interesting Idea by Memnos · · Score: 2

      And batteries for the millisecond-scale response times to bridge the gap until those backups spin up.

      --
      I don't trust atoms -- they make up stuff.
    3. Re:Interesting Idea by wiretrip · · Score: 1

      "Were the home of art and cultrue, and settled convict free." - Culture?? Not in the literacy department clearly.

    4. Re:Interesting Idea by LynnwoodRooster · · Score: 1

      Seems kind of short-sighted, then. Given that they turned off 720 MW of reliable power generation, and are replacing it with wind, which is quite a bit less "reliable". Yes, they are talking about 1.8 GW of installed capacity for wind, but de-rated for typical usage, and it's barely enough to cover. And when the wind doesn't blow hard enough - well, you get brown-outs and black-outs, until you can turn on all those natural gas peaker stations.

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
  2. Great news! by sysop · · Score: 4, Informative

    This is great news for rental tenants and others who can't make the numbers work on a solar system. South Australians can register their interest at http://ourenergyplan.sa.gov.au/virtual-power-plant

    1. Re:Great news! by viperidaenz · · Score: 1

      Providing they can convince their landlords to have it installed.
      If the cheap power then makes their property more valuable to renters, they'll up the rent.

      I don't see how this would benefit renters.

    2. Re:Great news! by viperidaenz · · Score: 1

      Of course this is in reference to private rentals, not state housing.

    3. Re:Great news! by haruchai · · Score: 1

      This is great news for rental tenants and others who can't make the numbers work on a solar system. South Australians can register their interest at http://ourenergyplan.sa.gov.au...

      Perhaps they can also sell shares in this & similar projects, making sure that individuals can buy in & not have it all taken up by big money.
      This should play well in markets with high electricity pricing like Australia, Hawaii, Germany & California.
      And now that Tesla has opened the door, I expect to see other players in energy storage such as Sonnebatterie try to make similar deals.

       

      --
      Pain is merely failure leaving the body
    4. Re:Great news! by Falconhell · · Score: 5, Informative

      Indeed, I am in SA, and in the first year since my 2kw solar was installed at a cost of $4000 aus, I have saved $1000 on my power bills. I am producing more than I use to run aircon 24/7, but due to the low feed in rate, still have small bills of around $200 aud/ quarter for nightime use. Currently generating 90kw/h per week, and use 77 kwh per week. As the feed in is 11c per kwh and power is 30c per kwh, still get a bill, however when I get a battery, I expect bills to drop to supply charge only.

    5. Re:Great news! by jblues · · Score: 1

      You might be right, but in my experience, I'd say that it will benefit the landlords in lower vacancy rates and the tenants in lower rent. Tends to be the case that the same property with better facilities doesn't significantly increase the resale value - it is advisable not to over-capitalise on rental investments.

      --
      If it acquires resources on instantiation like a duck, then its a shared_ptr<Duck>
    6. Re:Great news! by haruchai · · Score: 1

      typo: Should be SonneNbatterie, not Sonnebatterie

      --
      Pain is merely failure leaving the body
    7. Re:Great news! by blindseer · · Score: 1, Troll

      This should play well in markets with high electricity pricing like Australia, Hawaii, Germany & California.
      And now that Tesla has opened the door, I expect to see other players in energy storage such as Sonnebatterie try to make similar deals.

      Solar power is expensive and unreliable. Sure, batteries address the reliability problem but then add to the cost. Without the batteries then it's cheaper but then something has to fill in the gap during the night. This means burning oil or natural gas.

      I'm sure we'll see competition in batteries being supplied but they all use the same materials and technology to create those batteries. They can only get so cheap. The cheapest batteries are the ones you don't have to buy.

      Coal, oil, natural gas, and nuclear don't need storage because the energy is already stored in the fuel. Solar and wind will need storage or it will have to become cheap enough that just dumping the energy is viable, and we are a long way off from that. People will make the claim that solar is already cheaper than coal and nuclear but that's only true if there is a way to put that energy to use as it is produced. If the sun shines and people don't need energy, or people need energy and there is no sun, then solar energy doesn't look so cheap.

      You might expect new competition in energy storage but I do not. I expect energy prices to rise until there is a breaking point. People will be paying so much for energy that they will demand anything to bring prices down, even if that means breaking the ban on nuclear power.

      Without nuclear power you can choose only two of these three, reliable, inexpensive, and carbon free. Nuclear power is reliable, inexpensive (at least compared to solar + batteries), carbon free, and also the safest energy source we have.

      I agree that Tesla opened a door here. These batteries look great for managing the grid with solar. They'd also work great for managing the grid with nuclear. To make nuclear cheap means making it big. Big means it can't match the load as quickly as it changes. To match the load to the nuclear supply means batteries, but far fewer than if used with solar.

      --
      I am armed because I am free. I am free because I am armed.
    8. Re: Great news! by Anonymous Coward · · Score: 1

      Solar power has proven to be affordable and reliable. Not only that, it is a safe investment.

      Give me 1 billion in dollars, I can begin to deliver power before the week is out, even in Australia. Given 10 billion, there is no guarantee that a nuclear plant will ever deliver.

      The same people of South Australia deserve the benefits of solar, not the sure and certain waste of nuclear.

    9. Re:Great news! by VeryFluffyBunny · · Score: 3, Informative

      If you read the article, the first 24,000 homes are low-income housing owned by housing trusts. If they're anything like the housing trusts that I'm familiar with, they'll most certainly be on board. Housing trusts serve to house the more vulnerable members of society, not to turn a profit. They're highly unlikely to take advantage of their tenants. In fact, any profits they do make, they usually put into building more low-income housing. Not all countries rape their poor like the Americans do.

      --
      Debate is a form of harassment. Do not question my truth.
    10. Re:Great news! by Strider- · · Score: 3, Informative

      Nuclear power is reliable, inexpensive (at least compared to solar + batteries), carbon free, and also the safest energy source we have.

      Not sure what planet you're living on. Sure it's reasonably reliable. But I don't think anyone in their right mind would consider it inexpensive. Also, it's definitely not carbon free due to the immense amounts of concrete required to build the plants, never mind mine the Uranium and enrich it. But hey, don't let facts get in the way of your argument.

      --
      ...si hoc legere nimium eruditionis habes...
    11. Re: Great news! by Anonymous Coward · · Score: 1

      Reality.

      1 billion dollars? I can buy solar panels and start to install them immediately. Would begin in a week if I wanted.

      A nuclear plant? You'll not produce a single watt without wasting 10 billion dollars. And you'll come back begging for more money when you run out.

      You know that's how it will happen. If Australian money wasn't plastic they'd be better off burning it. Literally, it would be less wasteful than nuclear.

    12. Re:Great news! by blindseer · · Score: 2, Informative

      Can you give citations for your claims? I'll provide a couple.

      Nuclear has lower carbon footprint than solar:
      https://www.carbonbrief.org/so...

      Nuclear power is safer and cheaper than solar:
      https://www.youtube.com/watch?...

      --
      I am armed because I am free. I am free because I am armed.
    13. Re:Great news! by Anonymous Coward · · Score: 1

      4-5 year recoup is about typical in sunny states. Right now the payments for a 5 year loan on a 10KW system is about equal to the utility bill savings I expect every month.

    14. Re:Great news! by Memnos · · Score: 3, Insightful

      One of the Australian "lower level govvie drones" quoted in the article was the premier of South Australia, so not exactly lower level. Your theme seems to be that those in government are always stupid, corporations making profit is always evil, and absolute cynicism about everything is always warranted. You could be replaced by one of those little dippy drinking birds placed in the voting booth every election and the world wouldn't even notice your nonexistence.

      --
      I don't trust atoms -- they make up stuff.
    15. Re:Great news! by ChunderDownunder · · Score: 3, Interesting

      Nuclear is not an option. South Australia does have uranium but there is no domestic market and likely never will be - political suicide to anyone who would stare down environmentalists.

      There were murmurs about commissioning a study a year or two back but any motion would ultimately be defeated by both the coal lobby and the greens.

    16. Re: Great news! by WindBourne · · Score: 1

      What you just described about housing, America does.

      --
      I prefer the "u" in honour as it seems to be missing these days.
    17. Re:Great news! by blindseer · · Score: 1, Insightful

      Nuclear is not an option.

      Nuclear is always an option.

      South Australia does have uranium but there is no domestic market and likely never will be - political suicide to anyone who would stare down environmentalists.

      Then the "environmentalists" are ignorant, or idiots, or quite possibly both. Nuclear power produces less carbon than solar and kills fewer birds than wind. If these people are concerned about global warming and saving rare birds then they'd support nuclear power just as much or more than wind and solar.

      There were murmurs about commissioning a study a year or two back but any motion would ultimately be defeated by both the coal lobby and the greens.

      Do the lobbies vote or do the people? I'm sure both lobbying groups contain a lot of people but just how many coal miners are there? I've already established the "greenies" are ignorant idiots. For those that don't much care about global warming, coal mining jobs, or birds getting killed in windmills, then there is still the matter that nuclear power is safe, reliable, and inexpensive. There are more than 400 nuclear power plants worldwide in operation today. 50 more are being built today, and many more planned. If Australia can't bring themselves to embrace nuclear power now then they will in the future. I see that Australia exports a lot of coal and uranium. I expect that at some point, with old coal power being shut down and new nuclear coming online, uranium exports will exceed that of coal and then the coal lobby will no longer have the power to stop domestic nuclear power.

      Oh, and that moonbat Helen Caldicott isn't getting any younger. I expect a lot of anti-nuclear sentiment to die off with her.

      --
      I am armed because I am free. I am free because I am armed.
    18. Re:Great news! by Barsteward · · Score: 1

      "Nuclear power is reliable, inexpensive (at least compared to solar + batteries), carbon free, and also the safest energy source we have." rofl

      --
      "The hands that help are better far than lips that pray." - Robert Ingersoll (1833-1899)
    19. Re:Great news! by Barsteward · · Score: 1

      rofl

      --
      "The hands that help are better far than lips that pray." - Robert Ingersoll (1833-1899)
    20. Re:Great news! by Cederic · · Score: 1

      Which is clearly totally fucking stupid and demonstrates that environmentalists don't have a clue.

      They should be demanding nuclear and hoping it goes pop. The Chernobyl exclusion zone is a wildlife paradise these days.

    21. Re:Great news! by Applehu+Akbar · · Score: 1

      Solar may not be an industrial baseload, but it can be a good residential backup in places as sunny and as sprawling (high ratio of roof area to population) as South Australia. I'm assuming that eventually photovoltaic will be built into roofing material by default. You will have to order special "shade roof" for places that don't get any sun.

    22. Re:Great news! by gringer · · Score: 4, Insightful

      Ooh, youtube citations! I can do that too:

      Solar is becoming cheaper than all other alternative energy sources:
      https://www.youtube.com/watch?...

      He specifically talks about nuclear here:
      https://www.youtube.com/watch?...

      Tony Seba suggests that personal rooftop solar will eventually be cheaper than any grid supply, even a fantastical free energy supply, because its cost will drop below the cost of transmission:
      https://www.youtube.com/watch?...

      --
      Ask me about repetitive DNA
    23. Re: Great news! by Applehu+Akbar · · Score: 1

      Where did you get your numbers from?

      From any jurisdiction where the legal system allows infrastructure projects to be held up indefinitely by any group of activists with a grudge. With enough lawyers, you can make a local street improvement project cost ten billion dollars and look like the worst investment of all time.

    24. Re:Great news! by Applehu+Akbar · · Score: 1

      Also, it's definitely not carbon free due to the immense amounts of concrete required to build the plants, never mind mine the Uranium and enrich it.

      The more carbon-free the total economy becomes, the sillier this argument gets. At some point all mining and construction equipment will be electric and as carbon-free as the grid mix allows at the time. And in the meantime, ANY type of mining, smelting and construction is carbon-intensive to the same degree as nuclear. Wind turbine blades and towers are not being made by elves at the North Pole.

    25. Re:Great news! by angel'o'sphere · · Score: 1

      Nuclear is never an option when people are ready to take up arms and fight it.
      No idea in what phantasie world you live.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    26. Re:Great news! by angel'o'sphere · · Score: 1

      For the wildlife, as it is no longer hunted by men.
      For humans living there it is still deadly. Considering that a deer lives about than ten years and a human around 70 ...

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    27. Re:Great news! by delvsional · · Score: 1

      This is great news for rental tenants and others who can't make the numbers work on a solar system. South Australians can register their interest at http://ourenergyplan.sa.gov.au...

      Did your solar system include Pluto?

      --
      Oh Crap, I'm an optimist.....
    28. Re:Great news! by dryeo · · Score: 1

      Sure, there is a continuous stream of new animals moving in to replace the ones that die.

      --
      https://en.wikipedia.org/wiki/Inverted_totalitarianism
    29. Re:Great news! by Khashishi · · Score: 1

      Yeah, I would love to go solar but I rent so it's pretty much up to the landlord. It would be nice to have someone who will work with landlords to get it.

    30. Re: Great news! by VeryFluffyBunny · · Score: 1

      Only in theory.

      --
      Debate is a form of harassment. Do not question my truth.
    31. Re:Great news! by Mike_EE_U_of_I · · Score: 1

      Four years is accurate for Australia. Almost one fourth of all homes in Australia have solar on them. The super fast payback period is why.

      The payback period is so fast because Australia has the most expensive electricity in the developed world. Because of this, Australia also has the most developed residential solar installation industry in the world. The blokes in Australia can do a residential install for around a third of the price of a residential install in the USA.

    32. Re: Great news! by Falconhell · · Score: 1

      Maths fail, $200 for 3 months does not equal $40 per month. Hot water is gas, so not included at all.

    33. Re: Great news! by Falconhell · · Score: 1

      Just because you dont shower, dont assume others dont.

    34. Re:Great news! by gringer · · Score: 1

      Everyone of your citations is based on speculation, not real historical data.

      *cough*

      Those predictions are based on the extrapolation of past historical trends. In particular, Tony Seba has been tracking solar since 1976:

      https://www.youtube.com/watch?...

      Just to remind you, all of the things that I've talked about - batteries, EVs, self-driving, and solar - are technologies. The adoption curve for technologies is never linear. When you read the reports from the IEA, from the OECD and so on, they will tell you, "One percent EV penetration, 2%, 3%, 4%, 5%, right? And maybe at some point in 2040 it'll get to 10%, or whatever; same thing for solar. But whether they do it on purpose, or they don't understand technology, I don't know.

      Ramez Naan compares forecasts that the IEA has made, and points out that IEA is linearly projecting the future of solar, whereas solar is clearly progressing exponentially, and has been for a long time:

      https://www.youtube.com/watch?...

      --
      Ask me about repetitive DNA
  3. Yes, by Anonymous Coward · · Score: 4, Funny

    we .au techs have informed them that it is in fact a Distributed Power Plant, not a Virtual one (but if they want unlimited virtual power i have these solar panels in minecraft they could use).

    PSA + bad jokes expended. My work here is done.

    1. Re:Yes, by sheramil · · Score: 1

      (but if they want unlimited virtual power i have these solar panels in minecraft they could use).

      Mate, unless you've got the Galacticraft mod installed, those'll be light sensors, not solar panels.

  4. Re:Nothing is 'free' by Anonymous Coward · · Score: 1

    Cool, more for those of us who arent paranoid nutjobs, win win.

  5. Re:Why would I do that? by viperidaenz · · Score: 5, Insightful

    Because they'll sell you electricity below market rates and not charge for installation or maintenance of the system.

  6. Re:Why would I do that? by Anonymous Coward · · Score: 2

    Yeah, that seems pretty obvious when you RTFA

  7. Re: Why would I do that? by Anonymous Coward · · Score: 1

    They will sell me the electricity I generate above my market rate for selling it to me, which is zero. I'm better off getting a loan to pay for installation if I have no savings.

  8. Re:Why would I do that? by Wycliffe · · Score: 2

    Why would I provide my roof (and have holes drilled into it and everything else) so someone else can install solar panels on it and then sell me the electricity that is generated?

    Where's the advantage for the homeowner over just telling this lot to go way and continuing to purchase power as today without all of that gear on the roof?

    From the summary, it sounds like the homeowner gets a 30% discount on their monthly bill. The average electric bill in Australia is about $100usd so they are basically renting their roof for $30usd / month. A 30% discount sounds nice and he will likely get some people to say yes but it seems like a very small amount of money to deal with the hassle of having a 3rd party installing and then periodically maintaining something on your roof. There could be other benefits too though like not having to worry about brownouts, downed lines, etc...

  9. Not new, others have been doing this by aberglas · · Score: 1

    Solar panels are always connected to the grid. And several other companies have offered to install them for free if the householder pays slightly reduced power costs to the company.

    The key point is that only about 1/4 of the cost of buying power is the generation. About half is in transmission and distribution. And the other quarter in admin, solar subsidies etc. So we pay about 21c/kwh, but only get paid about 6c/kwh to give power to the grid.

    That means the real benefit is to be able to use the power during the day when it is generated.

    The kicker is that soon (5 years?) batteries will be cheap enough for people to go off grid altogether. And then who will pay the 75% of costs that are not related to generation?

    (There are some people grandfathered in to receive 40c/kwh. They make a point of using no power during the day!)

    1. Re:Not new, others have been doing this by Ol+Olsoc · · Score: 1

      The kicker is that soon (5 years?) batteries will be cheap enough for people to go off grid altogether. And then who will pay the 75% of costs that are not related to generation?

      This is going to be a real problem. I certainly plan to drop the grid at the first chance, and those who must remain on it will suffer some pretty big price hikes.

      With people who build in isolated ares, we are already seeing the cost of running the grid power to their homes is more expensive than rolling their own.

      --
      The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
    2. Re:Not new, others have been doing this by whoever57 · · Score: 1

      During summer afternoons, I get paid 44c/kWh for power that I feed into the grid. I buy it back at night at 12c/kWh, so I don't have any reason to go off grid.

      --
      The real "Libtards" are the Libertarians!
    3. Re:Not new, others have been doing this by blindseer · · Score: 1

      The kicker is that soon (5 years?) batteries will be cheap enough for people to go off grid altogether.

      That won't happen. Or, it might happen but the market will quickly correct for this and make being connected to the grid economical again.

      One day after discussing the cost of energy with friends I decided to figure out just how much it would cost me to go off grid. I took several angles to this and one was to just buy one of those "backup" natural gas generators and run it continuously. If I assumed that I could use the electricity as it was generated then my cost for the natural gas was the same as what I paid the utility for electricity. That means if I assumed the generator was free (as in I did not add capital and maintenance costs in the electricity cost) then my costs would be unchanged if I went off grid.

      Well, the utility burns natural gas to produce electricity too. Economy of scale kicks in and they can run a generator cheaper than I could. This will always be true because of physics. If the price of natural gas goes up then my costs go up, as does the utility. So long as they can keep the economy of scale big enough to cover the costs I'd have to pay in things like capital and maintenance then it will be in my advantage to buy from the utility.

      I saw similar effects for solar. I could buy solar panels just like the utility could. My shipping, install, and other capital expenses would always be larger than the utility because I'm a small time solar producer and the utility is not. I'll always spend more on batteries than the utility as well.

      The utility can also diversify unlike I could. A utility can put up solar panels, windmills, and natural gas. If I was to try to do that then I'd run into costs of permits, perhaps buying more land, and I'll always be getting smaller windmills or whatever as the utility.

      Well, what if I get together with some neighbors to buy some windmills, solar panels, and natural gas generators? That would spread out the costs, right? Yes it would. The utility can spread out the management costs even more, such as seeing how much each person in the neighborhood has to contribute to maintenance and paying down capital.

      Going off grid completely is unlikely to get cheaper than being on the grid because the utility can simply spread out costs better than an individual. That does not mean that going off grid would not be more viable in the future than it is now. I can still see an advantage to going off grid, even if that might mean higher energy costs. Power outages are still a thing. People place value in their independence.

      One thing utilities are good at is diverting excess in capacity to places with a shortage of capacity. If enough people threaten to go off grid because of the costs of paying for the wires to their house then the utilities will simply offer to buy excess capacity from home owners and pay for the wires themselves. They will pay you for your extra solar energy because someone somewhere will want to buy it.

      --
      I am armed because I am free. I am free because I am armed.
    4. Re:Not new, others have been doing this by Waffle+Iron · · Score: 1

      On the other hand, this wonderful grid of theirs has significant costs of its own. That's why the electric companies are always bellyaching about how expensive their grids are to run when they're trying to get net metering outlawed.

      On my electric bill, charges are split out into categories, some that can be assigned to actual electricity generation, and others that can be assigned to the connection and distribution. Typically, 40% or more of the charges are due to the latter.

      That means that if I went off-grid, my generation and storage costs could be almost twice that of the electric company before I exceed the costs of the power company and their expensive grid.

    5. Re:Not new, others have been doing this by dwywit · · Score: 1

      My last upgrade - in order to qualify for the off-grid subsidy, required a quote for the cost to connect to the grid - which ended 600 metres away. AUD$30,000 (yes thirty K) not including tree-clearing costs.

      The cost to upgrade our system (6 extra panels, controller, new set of lead-acid batteries, charger, and installation) only came to AUD$22K, so we qualified for the subsidy.

      I can't imagine the cost to get the grid connected if you're more than a few km from the nearest pole.

      --
      They sentenced me to twenty years of boredom
    6. Re:Not new, others have been doing this by blindseer · · Score: 1

      The electric utility is not in the business to make electricity, they are in the business to make money. If solar + batteries ever do get to a point where the costs of running wires is above that of what it takes you to disconnect from the grid then I can expect the utility to pay you to go away so they can focus on more profitable customers. As people on the fringes disconnect the people closer to the power plants will see costs go down for not having to subsidize the long wires out to sparsely populated areas.

      For solar + batteries to work means having enough sun on the roof, and enough batteries underneath it, to provide power day and night even if there is the occasional cloudy day. In a residence you have people are away for much of the day, and sleeping at night. This means a couple hours of peak use for hot showers and coffee in the morning. At night you'll have a few hours of TV watching and LED lights. The rest of the time the use of electricity in the house is just keeping the clocks running and the ice cream frozen.

      On the other hand you'll have your typical office spaces with computers and people heating up the place and AC to cool them down. Restaurants will be heating up food and running dish washing machines. Industrial users will be running all kinds of motors, lights, heating, cooling, and whatever. Maybe all this too can be run from solar + batteries but it will have to be on scales far lager than can be on their property. If the wires from the solar panels to the big users happens to be near some houses then I suspect the utility will gladly sell some electricity to the people that live there for a price they cannot refuse.

      I suspect that a lot of people will find needing to keep enough storage on hand to last through the occasional cloudy day will be more than what it costs to have utility services. Powering a house through the night means charging up all day so that once everyone goes asleep lots of things get turned off. A cloudy day means not having that recharge, and supper consists of eating melting ice cream by candlelight. Maybe you routinely have ice cream by candlelight for supper but I suspect many people do not.

      Perhaps my suspicions will prove incorrect, and the utilities will find it difficult to sell electricity because solar + batteries just got too cheap. Then maybe they will get into the business of contracting maintenance on solar + battery systems. If by chance you have some excess solar generating capacity then they might find a small side business running some wires to shift the sunlight from those that have it to those that want more of it.

      --
      I am armed because I am free. I am free because I am armed.
    7. Re:Not new, others have been doing this by angel'o'sphere · · Score: 1

      In Germany going off grid would be super stupid.
      Most household solar plants with battery storage are already in 'virtual power plants'.
      It is used for balancing power, the interesting part is the battery.
      It is not only filled by the owners solar panels but also from the grid.
      An it does not only power the house but feeds back into the grid, too.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    8. Re:Not new, others have been doing this by Ferretman · · Score: 1

      I found very similar with my experience deploying an off-grid system (I live off-grid with no utilities at all).

      When I first BUILT the system it was about 50/50..half for the panels, half for the batteries. Since then I replaced the batteries a couple of times (once as a quick fix for winter, once to put in the "final" system) and that portion (the batteries) was basically exactly the same price as before. They are much better batteries though so I consider it very much a win.

      Looking at solar prices I'd be able to get a system that's ~30% more capability for about 1/3 of the price it cost me 8 years ago.

      Ferret

      --
      Sic gorgiamus allos subjectatos nunc
    9. Re:Not new, others have been doing this by Reziac · · Score: 1

      In Montana 4 years ago, I was quoted between $25,000 and $75,000 per mile, depending on the company and the terrain. (A local co-op was the low end, a mid-sized Edison type was the high end.) First 300 feet is free, IF it comes from a main line, not some neighbor's drop.

      In California 20 years ago, I was quoted $12/foot for above-ground and $40/foot ($210k/mile) for buried cable, but Edison told me both were now functionally no-goes due to CA's goofy regulations and high costs (new above-ground is now mostly prohibited, but buried cable is taxed as improved real estate, which makes it too costly for Edison's liking.) So new lines go only to major developments that can pay suitably large b/r/i/b/e/s/ fees.

      So, yeah, new rural grid ain't happening, except for high-profit "rancho" type developments.

      --
      ~REZ~ #43301. Who'd fake being me anyway?
    10. Re:Not new, others have been doing this by Joey+Vegetables · · Score: 1

      Keep in mind that Australia gets a lot more sun than do most parts of the U.S., especially here in Cleveland (cloud cover 83% of all days, reducing solar output to 10-25% of normal), so the cost/benefit equation is very different as yet. But I do hope that as technology improves, solar power does end up being competitive throughout at least the sunnier parts of the U.S. and even Canada.

  10. There's several companies doing this by rsilvergun · · Score: 1

    in my neck of the woods, but the contracts are just awful. They're structured so that the homeowner takes on all the risk. There's monthly lease payments for the equipment and if the value of the electricity generated doesn't cover the lease you're on the hook to pay the rest. Also if you move you have to buy out the lease or get the new homeowner to buy into it. It's a pretty crap deal all around.

    --
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    1. Re:There's several companies doing this by Ol+Olsoc · · Score: 1

      in my neck of the woods, but the contracts are just awful. They're structured so that the homeowner takes on all the risk. There's monthly lease payments for the equipment and if the value of the electricity generated doesn't cover the lease you're on the hook to pay the rest. Also if you move you have to buy out the lease or get the new homeowner to buy into it. It's a pretty crap deal all around.

      I think your solar power setup is run by the Koch Brothers.

      --
      The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
    2. Re:There's several companies doing this by LynnwoodRooster · · Score: 1

      Nah, sounds like a standard SolarCity type setup. You can lease the panels for the electricity generated, but it's a 20 year lease, stiff exit clauses prior to the 20 year term, is non-transferable, and if the electricity generated does not cover the initial projections of income, the homeowner is on the hook to cover the difference.

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
    3. Re:There's several companies doing this by Ol+Olsoc · · Score: 1

      Nah, sounds like a standard SolarCity type setup. You can lease the panels for the electricity generated, but it's a 20 year lease, stiff exit clauses prior to the 20 year term, is non-transferable, and if the electricity generated does not cover the initial projections of income, the homeowner is on the hook to cover the difference.

      Well then it is pretty weird. Might as well just generate it and keep it. THe selling back to the grid was always a canard in my book.

      --
      The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
    4. Re:There's several companies doing this by LynnwoodRooster · · Score: 1

      Yeah, it's a nice racket - get people to pay you for the pleasure of their own power generation, cover your losses if the sales prices drop, guarantee to pay you for 20 years of equipment - and get some nice fat Government subsidies at the same time. It's amazing that they STILL can't make a profit with all that!

      --
      Browsing at +1 - no ACs, I ignore their posts. So refreshing!
  11. 30% savings claim by Anonymous Coward · · Score: 3, Interesting

    I'd be cautious about their claims of a 30% savings. I had SolarCity give me a very similar pitch. At the time, electricity prices were USD$0.08/KWh. Their offer was that I would be required to purchase from SolarCity 100% of the electricity my roof generated, at $0.13/KWh, for the life of the system. Pay close attention to what I just said - generated electricity, not consumed electricity. If I only consumed half of the electricity generated by my roof, I would sell the remainder to my local utility at the going rate, which is still $0.08/KWh. In fact, it's been $0.08 +/- $0.01 for the past 15 years. The more the sun shined, the bigger the hole I would have been digging for myself. Fortunately for me, I understand basic math, so I declined their offer. I instead purchased my panels from a local installer, and I'm on track to have my system pay for itself within my original 7 year estimate.

  12. Re: Pay for the energy you generate on your roof! by Anonymous Coward · · Score: 1

    You sound really bitter.

    At this point, Musk detractors just look like fucking morons whose only consistent quality is being absolutely wrong about literally everything.

  13. Re:Nothing is 'free' by Paradise+Pete · · Score: 1

    This must be sarcasm.

  14. Re:Free, but not obligatory? by Mr+D+from+63 · · Score: 1

    Either way, Musk is a master at getting government contracts. I'm sure it won't be hard to find willing participants to have government pay some of their power bills.

    The question is why don't they just do it with cheaper Chinese panels?

  15. Re:15-30 years last time I calculated... by Anonymous Coward · · Score: 2, Informative

    But if Tesla can build the solar panelling for ~.50USD/W, it might be doable in 7.5-15 years (I calculated recoup costs at 30 years as requiring ~0.30c/KWh power pricing to make it back, based off an 8 hour/day generation period.

    According to this page : https://electrek.co/2017/10/30/elon-musk-tesla-work-harder-australia-power-problem/
    South Australia is already paying ~$0.47 per kWh ( not sure if that is AUD or USD )

    According to this PDF : https://www.originenergy.com.au/content/dam/origin/residential/docs/energy-price-fact-sheets/sa/1July2017/SA_Electricity_Residential_SA%20Power%20Networks_Standard%20Published%20Rate.PDF

    Current network prices are ~$0.40 AUD INC GST ( GST = Sales tax )

    Taking the cheaper of the two xe.com says that : http://www.xe.com/currencyconverter/convert/?Amount=.40&From=AUD&To=USD
    works out to be ~$0.3166 USD per kWh

  16. Re: Free, but not obligatory? by mspohr · · Score: 4, Informative

    Yes, the government does own these roofs. These are council homes (low income housing).

    --
    I don't read your sig. Why are you reading mine?
  17. Re:Why would I do that? by AbRASiON · · Score: 1

    $100 USD average bill in Australia? You canâ(TM)t be serious. Nearly double that I would say.

  18. Re: Free, but not obligatory? by ClickOnThis · · Score: 1

    Yes, the government does own these roofs. These are council homes (low income housing).

    If the government owns the roofs (and homes) then the dwellers are not homeowners, by definition. Per my OP:

    Correct me if I'm wrong, but I don't think any government owns a homeowner's roof yet.

    That being said, I understand the benefit of encouraging roof colours that are appropriate for the latitudes of the homes.

    --
    If it weren't for deadlines, nothing would be late.
  19. Meanwhile by zamboni1138 · · Score: 1

    Meanwhile, people who paid the $1,000 to pre-order a solar roof from Tesla 9 months ago are being told it will be another 5 to 8 months.

  20. Re: Free, but not obligatory? by Memnos · · Score: 1

    I know what you meant, but when the government owns the homes, they themselves are the homeowner that owns the roofs.

    --
    I don't trust atoms -- they make up stuff.
  21. Re: Pay for the energy you generate on your roof! by Anonymous Coward · · Score: 2, Informative

    He's worth $20 billion dollars.

    Are you really that fucking retarded?

  22. The grid? by aglider · · Score: 1

    It's all very nice. But will the power grid support that infrastructure?

    --
    Sent as ripples into the electromagnetic field. No single photon has been harmed in the process.
  23. Re: Free, but not obligatory? by Anonymous Coward · · Score: 1

    Tenants have historically been able to install their own systems on the roof if they so choose of public housing. However if you move, it must be removed.

  24. Re: Free, but not obligatory? by WindBourne · · Score: 2

    Because the Chinese panels are not cheaper than Tesla's. They are about the same due to higher efficiency of Tesla. However, Tesla will likely use some Chinese panel.

    --
    I prefer the "u" in honour as it seems to be missing these days.
  25. Re: Pay for the energy you generate on your roof! by Applehu+Akbar · · Score: 1

    Has he yet to make a business that actually turns a profit?

    Is that your argument against long-term thinking? If a business does turn a profit soon after starting up, you would undoubtedly be carping about "profiteering."

  26. Re:Free, but not obligatory? by silentcoder · · Score: 1

    Where exactly is it being "forced" onto anybody's roof ? People are offered a deal, they can either take it or leave it.

    --
    Unicode killed the ASCII-art *
  27. had light version in Europe for years by Jerry+Atrick · · Score: 2

    In Europe we've been able to contract our roofs to PV companies for years. They take any profit, the homeowner gets free electricity. With the drop in feed in tariff rates new installations are dead in the UK now but it's still viable elsewhere. The schemes are so old they predate affordable domestic storage systems or grid storage but Tesla aren't really doing anything new.

    1. Re:had light version in Europe for years by angel'o'sphere · · Score: 1

      In Germany the profit is shared.
      Why would anyone give all the profit to a foreign company?

      Of course Tesla is not doing anything new, and claimimg that 50,000 roofs virtual power plant is the largest in the world, is just a joke, Germany has dozens of them.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
    2. Re:had light version in Europe for years by Jerry+Atrick · · Score: 1

      Should have said 'income'. Because we rarely meter generation, self use and generation income are uncoupled, the company get's the predictable income, the user the unpredictable self generation saving. It's a reasonable exchange.

      Buying the system yourself always had a higher return but having a system at all beats one you can't afford to install.

    3. Re:had light version in Europe for years by angel'o'sphere · · Score: 1

      Well, in Germany most "similar schemes" the company doing the "management" and the owner just share the profit. After all, the profit is changing extremely over the day or the year.

      --
      Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  28. Re:How much does this cost compared to nuclear pow by riverat1 · · Score: 1

    I did a little looking about the internet and I find that General Electric will sell a 50 MWt/15 MWe nuclear reactor to the US government for use in their navy submarines. By just about any definition of "small modular reactor" this qualifies. This reactor cost the US government about $100 million. To get the same 250 MW of electrical capacity as the Tesla "virtual power plant" it'd take 17 of these nuclear reactors, so about $1.7 billion. These reactors are fueled once and will run for 30 to 35 years. If we assume that these Tesla solar panels also last 30 to 35 years then this should be a pretty easy comparison.

    You'd have to include the cost of the 10 or 15 people* who run and constantly monitor each of those naval reactors 24/7/365.25 in your estimates. Qualified nuclear techs don't come cheap.

    *A guesstimate on my part but I can't imagine less than 4 or 5 people per shift to run them.

  29. Finance by sjbe · · Score: 1

    So cool idea but the real question is how do they plan to finance it? Putting solar on that many homes will be a huge up front capital expenditure (with some ongoing maintenance costs too) and that money has to come from somewhere. Furthermore the payback on a system like this isn't going to be in a year or two. It's going to take a decade plus or minus a few years to break even under even the most optimistic of assumptions. So Tesla will have to raise a large amount of capital today for a speculative payback 10 years from now. Tesla doesn't have that kind of cash just laying around so they are going to have to either sell more stock or borrow it to raise the funds unless a government somehow finances it.

  30. Think about it by sjbe · · Score: 1

    Why would I provide my roof (and have holes drilled into it and everything else) so someone else can install solar panels on it and then sell me the electricity that is generated?

    Is this a serious question? The answer to why is easy. They give you a deal that benefits you. Why is not complicated. Now the devil is in the details of course but it's not hard to answer why you might do this. Seriously, you cannot figure this out?

    Where's the advantage for the homeowner over just telling this lot to go way and continuing to purchase power as today without all of that gear on the roof?

    Because it costs you more to keep buying power the way you do today. Aside from a few eco-fanatics, almost nobody is going to install solar panels unless there is a financial payback that makes sense for them. If someone wants to come to me and offer me a deal to install solar panels that costs me less on my electric bill, doesn't hurt the value of my home, doesn't tie me up in a restrictive contract, and costs me nothing up front or to maintain, then that is a deal I'll listen to and so would you.

  31. Re: Free, but not obligatory? by Anonymous Coward · · Score: 1

    Because the Chinese panels are not cheaper than Tesla's. They are about the same due to higher efficiency of Tesla. However, Tesla will likely use some Chinese panel.

    That sound like a circular disagreement with yourself. IF they use Chinese panels, then how are they more efficient?

    Anyhow, I call BS on the more efficient claim. All that really matters is $/kw installed, and operating life, when comparing solar panels.

  32. Re:Free, but not obligatory? by angel'o'sphere · · Score: 1

    Because Tesla wants to ramp up its production capacity.
    And bottom line Chinese panels are mot cheaper ... the production cost is the same everywhere. It is only a difference in currency value at the world currenccy markets that make some places look cheaper.

    --
    Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
  33. Re: Pay for the energy you generate on your roof! by LynnwoodRooster · · Score: 1

    Tesla was founded in 2003. SpaceX in 2002. Solar City in 2006. That's 15, 16, and 12 years ago. So when do they turn profitable? Are these still startups, with a dozen or more years passed since founding?

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    Browsing at +1 - no ACs, I ignore their posts. So refreshing!
  34. Re: Pay for the energy you generate on your roof! by LynnwoodRooster · · Score: 1

    And that makes the companies profitable?

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    Browsing at +1 - no ACs, I ignore their posts. So refreshing!
  35. Re:Nothing is 'free' by nospam007 · · Score: 1

    "They are paying in data collection by Musk. You couldn't pay me to sign up for this."

    Well, then they'll pay 50.000 other guys and you can pay your bill yourself.

  36. Why isn't the goal by pjv936 · · Score: 1

    100% savings? Generate excess power and sell it to offset the financial cost of the solar installation. There is no reason why a home can't be a net energy producer.

  37. Re: Pay for the energy you generate on your roof! by WindBourne · · Score: 1

    All of his have, except Tesla. And it's time is coming soon.

    --
    I prefer the "u" in honour as it seems to be missing these days.
  38. So basically by MerlinTheWizard · · Score: 1

    The participants' houses won't completely belong to them anymore, just to cut 30% of electricity cost? Now that's a deal. :D

  39. Que obligatory Kochsucker replies by AutodidactLabrat · · Score: 1

    Ultimately, the fossil fuel (including nuclear, just really OLD fossils) industry can afford the troll line, for there are always true believers in global warming as a solution to overcrowding

  40. Re: Pay for the energy you generate on your roof! by eaglesrule · · Score: 1

    Growth and future earnings is more relevant than short term profits. It is much more beneficial to plant your seed corn than to eat it.

  41. Re: Why would I do that? by hey! · · Score: 1

    Depends on the specific numbers: the loan interest, the difference between the solar rate and the market rate, and how much electricity you use. If you have no savings, chances are you're not a good loan risk so your rate may be higher.

    --
    Post may contain irony: discontinue use if experiencing mood swings, nausea or elevated blood pressure.
  42. Re:Free, but not obligatory? by ishmaelflood · · Score: 1

    Actual experience with my 5 kW system. It cost me $7000. I think the installer probably got a $4000 subsidy in one form or another, so i paid that indirectly, being a taxpayer.

    Anyway, over the year that it has been installed its performance matches the predictions almost exactly, and it has generated 7000 kWh. Due to an insane state government scheme, which again i am paying for, I get 14c/kWh for power I feed into the grid, and am charged 24 c/kWh for power I take out. Over the year my total electricity bill is $200 credit, giving a crude payback of about 6 years.

    If I had invested that money elsewhere I would pay tax on any earnings, but for idealogical reasons PV income is not taxed, again I am paying for that in other ways. So I'd have to make about 30% pa on that capital to match the return from the panels. I'm nowhere near that good at shares.

    So basically, in Australia PV is currently a pretty good bet as other taxpayers are subsidising it. Of course if the ludicrous tarriffs change then it won't be as attractive. But I'll still be saving the planet (haha).

  43. Cue the nuke shills by Anonymous Coward · · Score: 1

    Slashdot's nuke fetishists don't seem to understand the titanic military vulnerability every single terrestrial fission facility represents. Which is weird, since so many of them are hawks... y'know, folks, if you want to send your armies all over the world, having giant centralized power production plants is pretty obviously a bad idea.

  44. Re: Free, but not obligatory? by Mr+D+from+63 · · Score: 1

    Neither link tells us about cost per KW installed. Please try again.

  45. Re: Pay for the energy you generate on your roof! by LynnwoodRooster · · Score: 1

    So how many years do you plant seed corn before you start to eat? Do we talk about future earnings still decades out? At what point should a person expect a company to start turning a profit? 5 years? 10 years? 15 years? More?

    --
    Browsing at +1 - no ACs, I ignore their posts. So refreshing!
  46. Re: Pay for the energy you generate on your roof! by eaglesrule · · Score: 1

    The answer to that is always 'it depends'. If you want to invest based purely on EBITDA go ahead, you'll have good company.

  47. Re:Why would I do that? by Wycliffe · · Score: 1

    The average is about $1600aud per year which is about $1200usd per year or $100 per month: https://www.canstarblue.com.au...
    The average in the USA is also about $100 per month: http://eyeonhousing.org/2015/0...

  48. Re:Why would I do that? by Wycliffe · · Score: 1

    When I was back visiting in December, I sat down with my mother for half a day and worked up a spreadsheet of their bills for the last year to work out how offers from other electricity retailers would compare to their current provider. (Yes, pricing is that damn complicated!) We ended up finding a provider that would save them $300/year and I switched them over.

    It's interesting that you even have a choice. I'm assuming they all share the same lines. In the US, as far as I know, pretty much everyone only has one choice and that is the local provider. The pricing is much simpler and is highly regulated and many are co-ops but the only choice is to use the local provider or to go off-grid.

  49. Don't they already do that? by kaatochacha · · Score: 1

    You know, those solar "leases" where you put the panels on your house and they sell you the power at a "discount"?

  50. Re: Pay for the energy you generate on your roof! by LynnwoodRooster · · Score: 1

    Well, Tesla has had 60 quarters, and Solar City has had 48. How many do you worry about in the future? Is 10+ years enough?

    --
    Browsing at +1 - no ACs, I ignore their posts. So refreshing!
  51. Re:you short sighted moron by LynnwoodRooster · · Score: 1

    How long is long enough, then, in your opinion? Is it 5 years? 10 years? 15 years? More? At what point is it no longer a startup, at what point do you kill the subsidizing of a company that simply cannot stand on its own?

    --
    Browsing at +1 - no ACs, I ignore their posts. So refreshing!
  52. are you always this wrong? by Anonymous Coward · · Score: 1

    And when the wind doesn't blow hard enough - well, you get brown-outs and black-outs, until you can turn on all those natural gas peaker stations

    Or the battery could just kick in within milliseconds...

    Do you have any idea what you're talking about?