I'm always a fan of smallish tweaks to something that enable them to be dual use.
Putting power walls in every home seems inefficient.
However, if EVs really catch on, we could incentivize owners to have them grid connected to absorb excess renewable generation, and to supply the grid when demand is greater than production capacity.
Would be neat if someone would do a study on the feasibility of a system like this, along with projected costs, and the amount of EVs that would be necessary for a robust grid buffer.
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