You can quibble all you want. It doesn't change the fact that whatever energy that was converted into electricity can't also have been used to heat the surface of the planet.I think your problem in understanding this concept stems from your reluctance to agree that it's logical that solar farms would reduce the heat above solar farms during the daytime because solar is converting heat into electricity during the daytime.
I already explained that 760 is less than 850. Did you miss that math?
Also, it's NOT converting heat into electricity.