User blog comment:JohnTAD/Seabase Power Sources Compared/@comment-37063932-20181002230505/@comment-36850877-20181003115111

Yea Thermal is probably the best power source when it is available, although Solar can be useful aswell. It is all about management. When I build my base I will build power generators in this order.

Solar

Thermal

Bio

Nuke

Solar first so that it gets used during the day, Thermal next so that the things with infitnite power aren't just sitting idle, bio next because it is pretty easy to farm Biofuel, and Nuclear last because of its rarity.