You started with the false limitation of choice in what to do with $1,575 (doesn't have to be spent on the vehicle) and later acknowledged the value equation.
Better to invest that $1,575 over the 16 years it would take to break even with solar recharging (based on bay area estimates).
Might make more sense in Hawaii where electricity is 4x the national average.
The real problem I have is that the first 300 watts of solar is not optional, so every consumer has to pay for it, including the ones that will park in the garage and plug in for every charge. Adding the next 400 watts is a $900 option. Should be an all or nothing option, not a some, or a little more option.
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