Panels on your roof are no more ugly than a composite shingle roof, meanwhile I actually do see windmills and they mare the landscape. Windmills will become NIMBY once enough people have tired of their novelty. They're NIMBY for me now. There may be vaste spaces, but they're not unloved wastelands. Whoever finds themselves there will have their view mared by windmills. It seems selfish when CA has the sun and roofspace to get the job done themselves.