FRANKFORT, Ky. (AP) — On a recent day under the July sun, three men heaved solar panels onto the roof of a roomy, two-story house near the banks of the Kentucky River, a few miles upstream from the state capitol where lawmakers have promoted coal for more than a century. The U.S. climate law that passed one year ago offers a 30% discount off this installation via a tax credit, and that's helping push clean energy even into places where coal still provides cheap electricity. For Heather Baggett’s family in Frankfort, it was a good deal.