I want to work on renewable energy specifically building science and renewable energy stores like sell solar VP.solar thermal,hydro,batteries,pumps,etc... but in building science I have to install those products so what should I study,which career fit better?

I know the nation is an fuel crisis, not an energy crisis people. I don't have a solar car so the sun is going to be no help in getting to the grocery store. What is America supposed to do to get these gas prices down? I feel raped when I pull away from the pumps. The politicians have no control over the prices. The big 5 oil compaines are just stuffing their pockets and the people keep paying the price because WE DON'T HAVE A CHOICE.