Reply to post: Re: Stupid

Elon Musk's Tesla set to unveil home storage battery

Charles 9 Silver badge

Re: Stupid

"No one can make batteries that cost less than the mains electricity they can charge and discharge in their lifetime so you can't even break even when the electricity to charge them is free."

No one can make them YET...unless you can pull an Alan Turing and demonstrate a formal proof that no battery can beat the grid, even if running off environmental power.

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