[eptcyka]

This is a moot point, if a power plant operates at any significant efficiency, it doesn't matter what the process of generating power is - the generated power will 90% of the time be turned into waste heat anyway.

[zelos]

In the long term, I guess light emitted to space and the embedded energy in spaceships are the only things that don't end up as heat in the atmosphere?

[eptcyka]

Electrically induced chemical reactions would also store the energy in a way that might not be released as heat, I think.