>petrol
Too hot. Too much CO2.
>hydrogen/nat gas
Clean. Easy. Not enough of either gas.
>volcano taming
Wow... I'm getting maybe 5watts spare after the aquatuner has cooled it down and I'm sitting on 24,000kg and counting of igneous rock that will be 200-300C on excavation.
Maybe I should just have hamster wheels now that my dupes have very little going on in their lives.

I've never done solar before but I'm guessing that too is just another aquatuner hog?