(radioactive ores produce heat)

That is a good point but concentrating the ore does consume a lot of energy just like the production if Cornohol. Or maybe Nuclear could be used to refine the ore.

Ultimately nuclear makes steam which drives a generator which is not 100% percent efficient and it goes through a power grid which is not 100% efficient and drives motors or lighting which are not 100% efficient.

I forgot about Tidal but like Hydro The generators will produce heat that was not there.

Geo takes heat that is already there to heat a home and it takes heat from the home and puts it back in the earth's crust.

I believe that most Geo uses a heat pump to collect the heat which has a motor that uses electricity some of which turns into heat.

The direct Geo system you described would be good with no compressor to waste heat. Run it on solar during the day and wind at night and there will be virtually no heat pollution.