With all due respect, I don't think so. Program lifetime cost of the F-35 Lightning is projected at a whopping 1.5 trillion US$. For the same amount of money, you could bring the renewable energy level to 50% of US electricity consumption (~1 US$/W). Scale effects not even included. Nobody wouldn't even miss the fighter (well, nobody missed it for all the years it was late).

It would be a concentrated effort of just 5 years going all the way at the scale of the Manhattan or Apollo projects, just a question of somebody really wanting to do it. It's just that it's way less sexy.