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Frank Hovis

Solar Power Batteries - Including Tesla

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Sarah Bell flagged these up on another thread. It's a good idea on the face of it as the batteries are charged during the day and then you have free power in the evening and early morning when you're most likely to use it. In theory.

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The Tesla batteries certainly look cool but per this article the version available next year isn't really designed for that; more for back-up in the event of power loss and with the high price and selling back to teh grid anyway:

"It's a luxury good—really cool to have—but I don't see an economic argument," said Brian Warshay, an energy-smart-technologies analyst with Bloomberg New Energy Finance.

http://www.bloomberg.com/news/articles/2015-05-06/tesla-s-new-battery-doesn-t-work-that-well-with-solar

There is good news ahead though, if you wait a bit:

Tesla is probably making very little profit on the home batteries at this point and might even be selling them at a loss, according to research by BNEF. Both Tesla and SolarCity are just getting started, trying to get some traction before Tesla's massive $5 billion battery factory begins production next year. That's when the battery market really gets interesting.

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I know a chap who had a shed full of ex MOD submarine batteries for this purpose. :blink:

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