https://interestingengineering.com/energy/steam-driven-nuclear-fusion-reactor
"In a global first, Richmond, Canada-headquartered fusion energy company General Fusion achieved the first-ever plasma in a reactor driven by steam."
this post was submitted on 13 Mar 2025
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All power is steam power, fossil fuels are burned to boil water. Heck nuclear reactors are also just boiling water to create steam.
It's all Steampunk but we grew out of our punk phase :P
Solar is (usually) not. Couldn't fit a steam turbine in a calculator.
"Couldn't fit a steam turbine in a calculator."
Not with that attitude you can't.
Solar photovoltaic doesn't involve steam. We can be solarpunk as well!
I guess hydro-power uses steam in the global water cycle so I'll give you that. Radio-Thermal Generators are all solid state, but not much power on earth comes from them.
And thermopiles.
Wind turbines as well.
Unless you count the humidity in the air.
Loads of fossil power use gas turbines that do not involve steam :x