I replied also Ray, I hope it helps. Please don't get infected by the doomers, the only requirement we need to keep in mind, is that all work done has to be something putting solar to work, by that we convert the heat of the sun to things other than heat. This is the definition of creation, what nature does, rather than what we've done throughout history mostly to date; constantly destroy by reversing the creative process of nature.
We can never do harm by adding energy to Earth as priduct, rather than subtracting from it, this has the opposite effect on temperature than destruction, which is the thing causing heat.