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Tesla Will Install More Energy Storage With SolarCity In 2016 Than The US Installed In 2015 (electrek.co) 149

An anonymous reader writes: Tesla is scheduled to install more energy storage capacity in 2016 with SolarCity alone than all of the US installed in 2015. It was revealed in a recent filing with the U.S. Securities and Exchange Commission (SEC) that Tesla foresees an almost 10x increase in sales to SolarCity for behind the meter storage. [From the SEC filing: "We recognized approximately $4.9 million in revenue from SolarCity during fiscal year 2015 for sales of energy storage governed by this master supply agreement, and anticipate recognizing approximately $44.0 million in such revenues during fiscal year 2016."] This revenue projection means Tesla expects to install approximately 116 MWh of behind the meter storage. The U.S. for example installed about 76 MWh of behind the meter storage. SolarCity and Tesla Energy doubled their battery installation volume last year. What's particularly noteworthy is that the 116 MWh expectation does not include SolarCity's biggest project -- Kauai Island's coming 52 MWh system. Hawaii is aiming for 100% renewable energy by 2045 and has contracted with SolarCity to balance the two 12MW Solar Power plants with the Kauai Island Utility Cooperative (KIUC). By 2020, there will be 70 GWh of Tesla battery storage on the road, and Straubel expects there to be 10 GWh of controllable load in those cars.
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Tesla Will Install More Energy Storage With SolarCity In 2016 Than The US Installed In 2015

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  • Possibly the most confusing summary this week. Congratulations.
  • yeah, confusing (Score:4, Insightful)

    by supernova87a ( 532540 ) <kepler1@NoSpaM.hotmail.com> on Tuesday April 26, 2016 @05:43AM (#51988169)
    Agreed, very confusing headline. Maybe a simplified way to explain it would be to say:

    • "This year, Tesla will singlehandedly double the amount of battery storage installed in the United States."

    The point is that so little has been done at large scale with batteries/storage to date that Tesla's efforts are a big leap for the cost and installed base of battery storage, and now feasibly making off-the-grid / backup / peak shaving / frequency regulation / demand response a real possibility to experiment with at scale.

    • Re:yeah, confusing (Score:5, Informative)

      by Anonymous Coward on Tuesday April 26, 2016 @06:03AM (#51988215)

      Battery storage is a waste of time, generates massive pollution, and will need replacing every 10 years. It is far better to feed the grid during peak times, and pump water to use hydro generation later in the day. We've know this for over a century!

      This is all about PR for Telsa to sell batteries; batteries with obsolescence built in.

      • by Anonymous Coward

        This is all about PR for Telsa to sell batteries; batteries with obsolescence built in.

        tl;dr Tesla is Apple for cars, but with more public money.

        The US was once about separation of Church and State, but then Churches were renamed to Corporations.

      • Re: (Score:2, Informative)

        by AmiMoJo ( 196126 )

        Battery storage is a waste of time, generates massive pollution, and will need replacing every 10 years.

        Utter nonsense.

        First, it depends on the type of battery. Utility scale you use sodium sulphur, residential scale you use lithium. Both are highly recyclable and will last for more than 10 years. In the case of lithium, most batteries will already have been recycled from cars anyway, so are on at least their second stint.

        Panasonic and Tesla are building the world's largest battery factory, with an output in excess of the current world output. They rightly expect that many of those batteries will be installed

        • First, it depends on the type of battery. Utility scale you use sodium sulphur, residential scale you use lithium. Both are highly recyclable and will last for more than 10 years. In the case of lithium, most batteries will already have been recycled from cars anyway, so are on at least their second stint.

          Is that true (the italicized portion)? I had not heard of that before.

          • by AmiMoJo ( 196126 )

            Some of the current ones are recycled, but most are new. I was talking about the medium to long term plan for them. Tesla packs are good for 900,000 miles, and even then they retain 80% capacity, so it makes sense to reclaim them from scrapped cars.

      • Battery storage is a waste of time, generates massive pollution, and will need replacing every 10 years. It is far better to feed the grid during peak times, and pump water to use hydro generation later in the day. We've know this for over a century!

        This is all about PR for Telsa to sell batteries; batteries with obsolescence built in.

        My home regularly loses power, especially during ice storms that take out power lines. I'm looking to install solar with several days of battery storage to mitigate that recurring problem. Don't mistake your preference for universal truth. It's a common mistake, and one reason people feel comfortable demonizing others.

      • by swb ( 14022 )

        The people one block over got really mad when I told them I was going to flood their block so I could use it as a pumped storage reservoir.

        I agree that your "solution" makes some sense, but you have to have a lot of geography and water available at your disposal. With 6 ft of head and 20 liters/sec you need about .83 acre-feet to get 10 kwh of power. That's not exactly residential scale.

      • Pump storage works great as long as you have a mountain, a lake, and all the permits are in place. There are maybe a dozen places in the US where pump storage is viable. Batteries will be needed for EVs and the batteries in the EVs will massive controllable storage facility. When the batteries are no longer suitable for EVs, they can be re-purposed for grid storage for a few more years, and finally they can be recycled.

      • Hydroelectric dams make great batteries on the grid for balancing out demand for energy generated in big power stations. But this is for an entirely different purpose. This is for balancing domestic and commercial micro-generation with solar panels and wind turbines. Except in very exceptional circumstances, you can't use hydro for that.

      • I think it's a bit of a stretch to call a technological limit "obsolescence built in."
      • It is far better to feed the grid during peak times, and pump water to use hydro generation later in the day.

        People are pissed about Net metering laws, [wikipedia.org] even though the money could be used to build hydro storage. They would rather build their own energy storage than trust the power company to do it for them.

      • Yeah ok, I'll just build a massive water tower in my back yard with a huge noisy pump to fill with water, and run a big noisy turbine at night off that water. I'm sure that the county and local zoning authorities will have no problems with this, and neither will any of my neighbors.

        Or I could put a fucking battery on the wall in the garage and call it a day.

      • Comment removed based on user account deletion
  • Yes? it is truth
  • by Anonymous Coward

    Tesla is great and facts are irrelevant. Elon Musk will solve all environmental problems with its arrogance-to-electricity technology.

  • The future looks so bright, you have to wear shades! Expensive shades.

  • by haruchai ( 17472 ) on Tuesday April 26, 2016 @06:58AM (#51988367)

    Last year, Tesla had a press release stating PowerPacks would be ~$250/kWh but the recently released pricing on their site shows a cost of $470/kWh even if you purchase FIFTY-FOUR PowerPacks for a total of 5,4 MWh of energy storage.
    And the inverters aren't cheap either.

  • I was all set to be stoked about Solar City until I found out they were buying panels from someone who uses slave labor to manufacture them [dailycaller.com] (Suniva [reuters.com]) ... more like conniva. Is that better or worse than buying them from China? Still can't decide.

    • by Maxwell ( 13985 )
      FTA:" Suniva Inc, a Georgia-based solar cell and panel maker that is backed by Goldman Sachs Group Inc, farms out a small portion of its manufacturing to federal inmates as part of a longstanding government program intended to prepare them for life after prison." Teaching prisoners useful skills is bad, if they learn a job while in there they may not re-offend and keep the prison supply system working. Or something like that?
      • FTA:" Suniva Inc, a Georgia-based solar cell and panel maker that is backed by Goldman Sachs Group Inc, farms out a small portion of its manufacturing to federal inmates as part of a longstanding government program intended to prepare them for life after prison."

        No. It is a longstanding program intended to use them as slaves while depriving Americans of jobs. Nobody is going to hire ex-cons to assemble solar panels, and we're continuing to incarcerate people for victimless and nonviolent crimes so that the supply of slave labor won't dry up.

    • How much do you get paid to downmod anything critical of his Muskiness?

  • 116 MWh of battery capacity is still a drop in the ocean compared to the total electricity use. In the 2016, the US consumed 4,686,400,000 MWh of electricity. If we could run the entire country on those 116 MWh of batteries, they would run out in 0.78 seconds.
    • There is absolutely no reason to consider the battery requirements for running the entire country, and it's kind of asinine to just average it out like you did.

      Solar can handle a significant portion of the peak loads, since the peak loads coincides strongly with time of day. Wind, hydro and whatever other whatever region-appropriate renewable can fill in for most of the night/off peak loads. You'd only need storage to cover the edge cases, and not all of that storage would need to be chemical battery (see:

  • by Anonymous Coward

    Why do these anonymous pro Solar City articles appear after SCTY stock declines? I didn't think Slashdot had been infected by the stock pumpers but now I'm not so sure.

    • I love how you say that, and SCTY is up at least $2 today. And, was up yesterday. In fact, they're trading at their highest price of 2016.

      What was your point again?

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