it is not only "that hard", it is impossible

1/ deploying solar takes years to go through multiple layers of environmental review at municipal, state and federal levels

2/ the generator interconnection queue takes 5+ years just to permit new grid connections

3/ building new HVDC has been blocked by permits and right of way laws, which is another barrier to effective solar deployment

4/ there are only two commercial nuclear reactors built in America since 1978, and they each took 10+ years to build