There is also already ARPA-E, which is a similar mandate to DARPA (i.e., risky projects with high payoff) for energy technology. How effective it has been thus

There is also already ARPA-E, which is a similar mandate to DARPA (i.e., risky projects with high payoff) for energy technology. How effective it has been thus far is a matter of debate due to a variety of factors, but I like the basic idea. https://en.wikipedia.org/wiki/ARPA-E https://en.wikipedia.org/wiki/ARPA-E