We have fuel already in game, synthesised from water so probably H2 is the fuel here. H2 can also be used to power gas turbines sets which produce electricity. Lets say this consumes 2 to 3 fuel per sol and requires 2 to 3 machine parts to maintain. I think they make a very good decentralised power grid.
PS: I posted this in suggestions, but i thought putting it here might catch some modders eye
PS: I posted this in suggestions, but i thought putting it here might catch some modders eye