Just read about Restart energy one this morning http://restartenergy.io/ but there are also
https://wepower.network/
https://cyclean.io/
https://solardao.me/
http://www.ecobit.io/ and
https://evergreencoin.org/ to name a few
Of course, you can recycle your upvotes in solar energy on Steemit with Hive account@solarcoach
https://steemit.com/solar/@solarcoach/recycle-your-upvotes-into-solar-energy-week-74 or recycle your aluminum foil to make solar cooker
https://steemit.com/recycle/@solarcoach/recycle-aluminum-foil-to-make-solar-cookers-1