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SolarCity Says It Has Produced the World's Highest Efficiency Solar Panel

Lucas123 writes: SolarCity, one of the country's leading solar panel makers and installers, today said it has been able to create a product that has a 22.04% efficiency rating, topping its closest competitor SunPower, by about one percent. While the percentages may appear small, SolarCity said the new panels, which will go into pilot production later this month, will produce 30% to 40% more energy with the same footprint as its current panels, and they will cost no more to make.

28 of 184 comments (clear)

  1. will they "cost no more to" buy? by turkeydance · · Score: 4, Interesting

    inquiring minds.....

    1. Re:will they "cost no more to" buy? by ShanghaiBill · · Score: 5, Interesting

      Who on earth would buy batteries for a solar panel installation? Just buy a grid tie inverter and pray your area has net metering and that's IT.

      Net metering is not available everywhere, and some places are scaling back. Hawaii has some of the highest electricity prices in the world (42c / kwh). So many people are installing solar, that there is a glut of electricity during the day, and the electricity company gets whipsawed at 7pm when the solar fades but the ACs are still on. Residential battery systems that could soak up even 20% of production, would shift demand by a couple hours and solve the problem.

      And no, solar panels ARE NOT cheap. If you think they are, then give me your sources.

      RTFA. It says that panels are now 65c/w. If you get a quote you will find that the installation costs and infrastructure are going to more than double that. The biggest cost is no longer the panels themselves.

    2. Re:will they "cost no more to" buy? by dwywit · · Score: 4, Informative

      Re: why Batteries? Those of us who choose to live beyond the grid. It's only 600 metres away from my house but Energex want ~AUD$30K to extend a standard (i.e. non-AC) single-phase service to my house.

      Solar panels are a damn sight cheaper than they used to be. My last purchase in 2009 was 6 x 140 watt 24 volt panels @ AUD$1400.00 each. Those same panels are now less than $400 each.

      --
      They sentenced me to twenty years of boredom
    3. Re:will they "cost no more to" buy? by Anonymous Coward · · Score: 2, Interesting

      In Australia we have higher electricity prices and they recently "reduced" the price by quadrupling the daily grid connection fee. They are really on the attack against solar and battery storage, leaks are showing they are wanting to charge a historic grid exit fee (so you pay thousands to disconnect from the grid). We will very likely be the first country in the world to experience the shift from centralized to distributed power and our major energy companies are fighting it strongly.

      We were one of the first to have solar reach grid parity, we have the number 1 spot in the world for solar, we have a large number of coal plants that are mothballed and the energy companies are simply waiting for the government to give handouts so they can avoid the millions it costs to decommision them. Tesla recently announced we will be getting their powerwall early, we are getting Enphase's AC battery system first. All because we are very close (or at) grid parity for renewable + battery storage today, something we thankfully have our government recognising now after the ousting of our "coal is good for humanity and wind turbines are an eyesore" 4th Prime Minister in 5 years (5 leaders in 5 years baby! Stable democracy at work!)

    4. Re:will they "cost no more to" buy? by Anonymous Coward · · Score: 2, Informative

      Has Hawaii mandated solar water heating in all residences yet?

      When I lived there in the 90s in drove me crazy that 3% (back then) of the electricity was used on hot water production, but there was free sun everywhere.

      If I recall, most of the electricity production there is from diesel generators. A 3% reduction in electricity consumption translates into 3% fewer tankers at risk of destroying their economy with a diesel spill.

      Oh... and the windmills on the North Shore weren't spinning. Have they fixed that yet? Constant wind ~11 months of a year and the windmills weren't spinning...

    5. Re:will they "cost no more to" buy? by rtb61 · · Score: 2, Interesting

      The cost of complete solar systems panels and batteries is offset by the capital value they add to the property, so unlike renting a power connection and burning capital as energy, it gives the home owner something to sell. So the cost of a complete system has less impact due to the retained capital value of the system (developing branding of complete systems will have a major impact in this ie powered by Tesla or say Toyota vs a cobbled together system), pretty much no different to the air-conditioning or cooking appliances they would power.

      The more this comes into practice the more rapid the shift to DC only appliances in the home this not only reducing the cost of those appliances but also the solar power system. Likely it will be cheaper to drop the mains connection than pay a connection fee and for the additional components of a home power system to allow AC into and out of the system, keeping in mind the less power the mains power system supplies and can be charged for, the higher the rental cost for that connection to the power station (interesting problems for medium and high density dwellings versus homes). Gas as energy for cooking and heating has even worse future outcomes (except for power generation due to the polluting nature of coal ie coal dies first, then oil and then gas).

      The demand for energy will continue to grow as more accessible energy allows the conservation of other resources (cheap nature water sources versus desalinated water) and more effective recycling (better recovery of resources from waste).

      Disrupting these logically changes are the psychopaths of capitalism trying to squeeze blood out of all of us in order to further enrich themselves and damn the long term consequences, attempting to extend the profitability of the fossil fuel resources they own for as long as possible before dumping those investments on pension funds.

      --
      Chaos - everything, everywhere, everywhen
    6. Re:will they "cost no more to" buy? by amiga3D · · Score: 3, Informative

      When I was there they said corrosion had destroyed the wind generators. Evidently the people that installed them didn't consider the salt environment when they did the install.

    7. Re:will they "cost no more to" buy? by amiga3D · · Score: 2

      You sound like some sort of religious fanatic. I'm all for solar and off grid but it's not cost effective yet. It's getting better but there's no way for me to go off grid as that's a huge outlay of money and it'll take many years to recoup the investment. DC appliances cost way more than their AC alternatives. I priced a DC air conditioning system and it was prohibitively expensive. I can see this getting better but we're a decade or maybe two away from solar being more affordable than being on the grid. I plan to start small and build a system a little at a time as I can afford it and it makes sense.

    8. Re:will they "cost no more to" buy? by Lumpy · · Score: 2

      Both. When the batteries are full I pump excess back to the grid.

      I still have another 10 years on my batteries (5 years old, batteries last 15 years typically in properly designed solar), so not a problem. The solar panels have another 25 years before replacement.

      --
      Do not look at laser with remaining good eye.
    9. Re:will they "cost no more to" buy? by amiga3D · · Score: 2

      Well sure, it's easy and cheap to go off grid if you don't really want all the modern conveniences like a washer, dryer, refrigerator, air conditioning, etc. I could probably do without a lot of things but there are limits. It's still cheaper to buy electricity from the power company that generate and store my own. I see the day coming that will change though as technology marches on.

    10. Re:will they "cost no more to" buy? by amiga3D · · Score: 2

      You sound like an idiot who can't read. I simply said that going off-grid with solar requires a huge outlay of money that makes it cost prohibitive for most.

    11. Re:will they "cost no more to" buy? by thegarbz · · Score: 2

      The cost of complete solar systems panels and batteries is offset by the capital value they add to the property, so unlike renting a power connection and burning capital as energy, it gives the home owner something to sell.

      Maybe at some point in the future. Right now as someone who has close ties to realestate industry it doesn't only not add value to the property to be off the grid, but it actually counts as a negative. People don't care for fancy gadgets, they care for an easy to understand reliable connection that involves no maintenance. Off grid solar or actually anything off grid fails on all three of those points. Solar is about as much of an "asset" as a car, it costs a lot up front, devalues quickly as technology progresses, and no one really appreciates it's purchase and ongoing value.

      The more this comes into practice the more rapid the shift to DC only appliances in the home this not only reducing the cost of those appliances but also the solar power system.

      This is just flat out not going to happen. There's no standard for it. There's no driver for it: For small appliances there's zero benefit as the voltages will likely be wrong so they still need a powersupply, for large energy guzzlers DC is less efficient than AC, especially for devices that are 3ph. No houses are wired for it. Few devices are available for it. And unless you keep the voltages dangerously high (dangerous from the burning your house down due to a minor fault type dangerous) the cables losses are excruciating. Stick with AC.

    12. Re:will they "cost no more to" buy? by rch7 · · Score: 2

      Inverters, mounting hardware, roof engineering, installation cost - all these things are not directly proportional to panel wattage but depend on panel count/covered area too. More efficient panels may make whole system cheaper even if panels are more expensive per watt. Especially in the US, where residential solar is not mainstream and installation still costs a lot comparing to places like Australia.

  2. Not one percent by ma++i+ude · · Score: 5, Informative

    22.04% is not one percent better than SunPower's 21.5%, it's 2.5% better. Alternatively, it's 0.54 percentage points better. It's not the same thing.

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    You can't shut us down! The Internet is about the free exchange and sale of other people's ideas!
  3. Labor cost to install remains the biggest issue... by FlyHelicopters · · Score: 4, Interesting

    In my area, the cost of the panels is no longer the primary issue.

    I can purchase a 10kw system online including all the panels, cables, inverter, etc. for about $17K.

    http://www.wholesalesolar.com/...

    That system has 32 panels, the "smart" inverter, racking, disconnect, etc.

    The trick is installing it. The lowest total installed price for that system that I've been able to find is $35K. That strikes me as nuts.

    I've contacted multiple companies, I've had 2 of them quote me systems after looking at my roof.

    Making the panels a bit more efficient won't cut the price by enough to matter until the install cost comes down. Maybe I should start a solar panel install company. :)

  4. Cost? Life? by 140Mandak262Jamuna · · Score: 2, Interesting
    Manufacturing cost is same, they claim.

    The new panels produce 30% to 40% more power over the current models, but they cost the same to manufacture -- about .55 cents per watt, according to Bass. The panels, which are 1.61 meters or 1.81 meters in size, depending on the model, will have a capacity of 355 watts each.

    . Curiously they don't claim it would cost the same to the users. May be a little profit taking, nothing wrong with that, they need some motivation and some returns to attract investments. Anyway they have competition, they are not the sole manufacturer of some life saving drug or something. Market will rein in the profits at the optimal level. And may be transportation and installation might be a little more expensive? Don't know, but encouraged the cost of manufacturing is same.

    No mention of life of the panels.

    --
    sed -e 's/Chuck Norris/Rajnikant/g' joke > fact
    1. Re:Cost? Life? by Ichijo · · Score: 2

      .55 cents per watt

      That's amazing! So a 355 watt panel will cost 355*0.55=195 cents!

      --
      Any sufficiently unpopular but cohesive argument is indistinguishable from trolling.
  5. Re:So, How Much? by Anonymous+Psychopath · · Score: 2

    If you have to ask, you can't afford them.

    With SolarCity you don't buy the system, you just choose to use them as a service provider and pay them per kw/hr for what they generate. They own the panels and all the other hardware, installation, and maintenance. The upside is you aren't responsible for doing anything other than paying your monthly generation bill. There are two major downsides.

    It's a 20-year contractual commitment. If you sign up and then sell your house, you're still on the hook. The best case scenario is the new owner could elect to take over the contract. Alternatively, you could pay them to move the system to your new digs. If none of that works, you have to buy out the remainder of the contract.

    Also note you're paying them per kw/hr for what's generated, not for what's used. In theory you size the system so that you sell excess generation during the summer to your standard power generation provider, but the fine print is they typically only buy power back at the lowest-tier rate.

    --

    Eagles may soar, but weasels don't get sucked into jet engines.

  6. Herein lies the problem.... by erp_consultant · · Score: 2

    Solar City offers you two options - buy the panels outright or lease them. Most people go for the lease option because of the lower upfront cost. I looked at this about a year ago but decided not to get it once I found out that you can't upgrade the panels when newer/cheaper/better ones come along. Whatever you signed up for you are stuck with. No thanks.

  7. Re:Labor cost to install remains the biggest issue by FlyHelicopters · · Score: 2

    It's a good thing SolarCity installs the panels for you when you buy them, then.

    Sure, if they would install here, but they won't.

    I live in the Dallas, TX area, they do install here, except for areas that are served by cooperatives. Only if you're with Oncore or Texas-New Mexico Power Delivery Companies will they install (due to the rebates and deals they give SolarCity).

  8. Re:So, How Much? by FlyHelicopters · · Score: 2

    With SolarCity you don't buy the system, you just choose to use them as a service provider and pay them per kw/hr for what they generate. They own the panels and all the other hardware, installation, and maintenance. The upside is you aren't responsible for doing anything other than paying your monthly generation bill. There are two major downsides.

    The other downside is that they only install where they get special deals from the local power company, I've talked to SolarCity, they won't install here because I'm a member of a cooperative that only provides a $1,000 rebate for installing solar. The other for-profit companies give much higher rebates.

  9. Re:So, How Much? by tompaulco · · Score: 2

    With SolarCity you don't buy the system, you just choose to use them as a service provider and pay them per kw/hr for what they generate. They own the panels and all the other hardware, installation, and maintenance. The upside is you aren't responsible for doing anything other than paying your monthly generation bill. There are two major downsides.

    The other downside is that they only install where they get special deals from the local power company, I've talked to SolarCity, they won't install here because I'm a member of a cooperative that only provides a $1,000 rebate for installing solar. The other for-profit companies give much higher rebates.

    From both of these responses, I can tell that these supposed do-gooders are actually about the solar equivalent of nursing home medicare fraudsters or ambulance chasers.

    --
    If you are not allowed to question your government then the government has answered your question.
  10. Re:Materials Sciences Revolution by tompaulco · · Score: 2

    We're deep into diminishing-returns territory on the benefits of population. Cutting back on population growth would let us focus more on the education and support of what kids we do have, netting a greater overall amount of scientific output than we'd get by just breeding like roaches.

    It's a shame that the people with access to education and who have the skills and the environment to make a difference are heeding your warning and not breeding, while the people in the world who have no food, no education and no future continue to breed like the cockroaches you mention.

    --
    If you are not allowed to question your government then the government has answered your question.
  11. Re:Labor cost to install remains the biggest issue by silas_moeckel · · Score: 5, Interesting

    Hint you have to use a certified (by the solar panel manufacture aka the last guys that touched it) to get the fed tax credits.

    Like most federal tax credits incentives etc it's pork for a corp interest. All you should need is the signoff from the electrical inspector maybe have them do a quick power output test and sign some paperwork. Instead the value of that work gets marked up the same as the tax breaks.

    --
    No sir I dont like it.
  12. Re:So, How Much? by amiga3D · · Score: 2

    Money talks. Mostly it's obscenities and profanity.

  13. Re:Can you buy these panels yourself? by ShooterNeo · · Score: 4, Informative

    Like this? https://www.anapode.com/produc...

    Point is, you need a panel. And you need a microinverter. And you need a wire to the roof. And you need a box, called a combiner box, the wire goes into. There is usually a cutoff switch on that box. Then, after that, the wire from the combiner box is usually backfed into your main breaker panel, with the power going backwards through an appropriate breaker rated for the wire's ampacity. Really, the tricky part is the power company has to come and approve the design and install their 2 way meter. Everything else, any idiot can do.

  14. Re:So, How Much? by ageoffri · · Score: 2

    You have one really bad seller's agent if they don't have the solar system lease written into the contract. In reality the worst case scenario is a buyer won't agree and you wait for the next buyer. Given the current market, that won't take long.

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    -- Slashdot, making the Left look conservative since 1997.
  15. Re:Labor cost to install remains the biggest issue by FlyHelicopters · · Score: 2

    That is why I think $18K to install it is beyond insane...

    I just haven't found a reasonable local company...

    As for the power itself, $35K works out to about 12 years of my power bills, but even that is too much since a 10kw system will only reduce maybe 40% of my bill.

    It is too expensive. At $25K before tax credits, it starts to make sense.

    If good panels can be had for less than $17K for the whole kit, of course the cost would come down further.

    Maybe other areas have decent competition and suppliers, if the price is lower in other places, I could understand why more people have solar.

    But according to the solar association in my city of 250,000, only 150 homes have had solar installed. I've never seen one of them.

    No one around here is doing it (well, almost no one)