Of those I’ve only read The Dispossessed. Definitely worth reading, though I don’t think I’d call it Solarpunk.
One of the planets has a harsh natural environment and a mostly-functional anarcho-communist society made up of people who left the other planet’s rather less-functional hyper-capitalist society, though it has managed to clean up their damage to its more hospitable environment (in part because they outsourced most of their mining to the other planet)