I think this idea has at least two problems:

1. Energy consumption is only a problem for outdated cryptos like bitcoin. Prettymuch every modern crypto runs on much more efficient proof-of-stake, etc.
2. Even if we wanted a solar crypto, how would we verify that it’s generated by solar power?

So you think cryptos “solve” the same problem as paper money? A distributed open network is just the same as some rich bros printing paper?

Sometime the point is not to solve a new problem but to improve a fundamentally broken “solution”.