You know, one of the great things about most renewable technologies - not every technology, but many of them - is the jobs have to be local. When you're talking about a power plant and power generation using solar thermal technology, the jobs will be where the plant is.
If you have a carbon cap and trade system, there'd be an agreed-to limit the amount of carbon we emit. That changes the economic picture for fossil technologies and for the renewable technologies. It makes the renewable technologies more attractive and the fossils less attractive.