An Amish farm not too far from me (and not too far from Elizabethtown College, where TFA is from) has a solar panel on the barn roof. Noticed it while driving past about a month ago.

I don't know what sect the family belongs to, but a couple months ago I drove past on a Sunday morning and saw over twenty buggies parked in the pasture, nary a car in sight, so I'm confident they're at least not in a car-owning group.