When it comes to state energy policies, the wind is finally blowing in the right direction. Take our home states of Kansas and North Carolina, both of which have begun to look at their renewable-energy mandates with new skepticism.

In May, Kansas effectively repealed its Renewable Portfolio Standard—which required 20% renewable electricity by 2020—by making the target voluntary. “This allows some free-market forces to go to work,” the chairman of the House Energy and Environment Committee declared. North Carolina is on track...