I don't know if I'd really call these solar punk, but here's a few things I've done.

My yard is clover, not grass. I barely mow it. I know it so little the city "politely" informs me when it's time. (Pro tip: Don't use red clover. Use white clover.) I also leave my leaves in place, the most I do is mow them to chop 'em up. The bees love the flowers. The lightning bugs seem to love it as well, I've noticed more. I attribute this to the leaves.

I replaced my water heater last year because it broke. It was electric. My new one is a heat pump. It's cheaper to run. Plus, as a free side effect, it cools off and dehumidifies the basement. I'm not sure how much cooling and dehumidifying it really accomplishes, but I generally have a dehumidifier running down there anyways to help combat humidity.