[p1mrx]

If some technology analogous to a Mr. Fusion is ever developed, then perhaps the economy could reach a point where energy is free, but heat pollution is heavily taxed.

The outcome would be that people start migrating into space, where heat can be rejected more freely.

[njharman]

Heat can only be radiated in space. Also, think about it, earth is in space. Heat is only ever radiated or temporarily dumped into sinks such as planets, which eventually radiate it.

[dredmorbius]

Note that for satellites, 100-200W /m² is about the peak radiation rate as well. Radiators for space-based power would be a massive cost alone.

[Retra]

Heat is very hard to manage in space.