Steam (Mekanism)
From ATLauncher Wiki
there are 2 ways to make steam (that I know of) the first one is with the fission reactor more on that later, the second is with a fusion reactor. To use a fission reactor you MUST pump in water and pump the steam out, however, the fission reactor will NOT generate power on its own but instead is a source of steam you can then use in an industrial turbine to get power, with a fusion reactor it is not required and requires more fuel to run it, this will produce a massive amount of steam (and also somehow hold more steam than a much bigger industrial turbine). The only use for steam is (as far as I know) in an industrial turbine.