Re: [ANN][SLR] SolarCoin | PoW to PoS v. 2.0 | Solar Proof of Generation (§1 = 1MWh)
https://www.inverse.com/article/39078-startup-lets-anyone-bring-solar-power-african-villages-bitcoin
Solarcoin has worked with The sun Exchange for awhile now
Great team. https://thesunexchange.com/faq