Tesla Batteries

Oh, Elon Musk, can I love you any more?  Probably.  When you deliver broadband, somehow.

But for now, the battery is great news.  A couple weeks ago this was hinted at, but the details are mind boggling, really:

Last Thursday in California he introduced to the world his sleek new Powerwall – a wall-mounted energy storage unit that can hold 10 kilowatt hours of electric energy, and deliver it at an average of 2 kilowatts, all for US$3,500.

That translates into an electricity price (taking into account installation costs and inverters) of around US$500 per kWh – less than half current costs, as estimated by Deutsche Bank.

That translates into delivered energy at around 6 cents per kWh for the householder, meaning that a domestic system plus storage would still come out ahead of coal-fired power delivered through the conventional grid.

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