I found a very good video in witch Power Ledger, WePower and Restart Energy are compared. Check it out!
In my opinion, the best option is Restart Energy - experience in the energy field, low token value and the franchise idea.
https://www.youtube.com/watch?v=sKMqxwMsHIYI hold these three tokens. I believe in the future of more rational use of energy. Not soon governments will allow the development of a decentralized energy market. But these projects seem to me not yet mature. I think it will be many more years before they work at full strength.