Besides the fact that you’re using Blockchain to mean Crypto Currency, this is unrealistic and counterproductive in a number of ways.
What if people could earn money by generating solar energy and selling directly to vehicles, instead of the grid?
How? How do you get your rooftop power to a buyer across town, or the other side of the country? Corporations or municipalities still control the grid
Then there is the distribution issue. Energy must be transported to the points of consumption, the charging stations. But due to the decentralized nature, this could actually result surprisingly cheap, as instead of transporting large distances, more charging stations in neighborhoods could reduce those distances. But still, this would require upfront charging stations and distribution investments.
You caught it yourself. Are you proposing an alternative grid? Good luck with that. Putting a charging station on your own property and renting that out via crypto? That’s a massive waste of space, since you’ll now need an additional parking spot for every home
Generators would be rewarded with a blockchain token for the energy generated, while consumers would pay for the energy in those tokens. Therefore speculation would be curbed as the tokens are for a real thing, energy, which on top is a stable unit - kWh.
How do you get tokens, if you consume more than you produce? You buy them with money. So saying it curbs speculation rings hollow. Besides, who rewards these tokens? Contrary to Bitcoin etc. you need physical hardware to confirm the proper amount of energy was transferred, and hardware can be tampered with.
What we need are communal, shared infrastructure and an end to growth. Not more electric cars, and certainly not more individualistic, crypto-capitalist tech fetishism. I don’t mean this as an affront to you, but this whole suggestion runs contrary to all that Solarpunk is about
get boiled, idiot