How do we get 500 degree steam for the "Rensuir Turbine" as the boiler output only 250 and the big boiler that use alien fuel cell output mechanical power. The steam made in the Engine addon isn't a same steam used by the turbine
You can use "vanilla" steam from nuclear.
In next version i will fix this with a new boiler or balance this out. If you have green signs you can upgrade the boiler to 300, so you can get 3/5 power from the rensuir. Its not perfect at the moment and im fully aware the situation.