Could that actually work? You'd have to expend energy to concentrate the heat into your power generation system to power the (I assume) a laser or similar emitter to beam the energy away. Would you be able to make sure that the extra energy used to move the heat around, plus inefficiencies in the laser power generation gets included in the outgoing photons? This seems, perhaps naively, like the entropy is going the "wrong" way.
You could presumably radiate it to space by moving the heat to something that can "see" a clear sky, but you can have this happen naturally on a far huger scale by reducing GHG content in the atmosphere and increasing the radiative efficiency of the entire planet surface, as well as various passive systems like cool roofs, albedo manipulation and special materials that radiate specific wavelengths.
Yes, it would require radiative surfaces with sky view. Such systems are already in use, including surfaces that get much cooler than air temperature, in the sun on a warm sunny day.
When you cool a building or a data center or whatever, you can pump that heat into a high temperature fluid and send it to a sky-radiator instead of sending it to an air-exchange radiator. So heat produced in processes could be moved to radiator assemblies and “beamed” into space (I probably should have said radiated).
You could presumably radiate it to space by moving the heat to something that can "see" a clear sky, but you can have this happen naturally on a far huger scale by reducing GHG content in the atmosphere and increasing the radiative efficiency of the entire planet surface, as well as various passive systems like cool roofs, albedo manipulation and special materials that radiate specific wavelengths.