Yea, geothermals seem to be king. A battery of nine geothermals, around three golden waterproof pipes, produces 180 EU/tic.
To get that kind of energy output, the nuclear plant with an identical EU output is found here. This has a MASSIVE amount of resources and subcombines necessary, and has a (slight) explosion risk, due to it being a Mk II-1 reactor
i agree with that. hopefully the next IC2 version will change that, but to date those normal reactor designs only waste uranium by using it below it's capabilities and don't have a higher output than an easy to build geothermal plant. in the middle range of EU production, geothermals are king. nuclear reactors rule the high-end energy production as CASUC's.