Having spent a whole 2 or 3 hours in Why, AZ and both of the Coyote Howls campground, I can say with virtually no certainty that it seems that the people who stay there are pretty content with the situation as it is. I am certainly no expert on the socio/political/economic demographics of the area and may be completely wrong.
That being said, I will continue to spout my observations. I believe that if anyone wanted the comfort of shore power in their living situation, it would be easy enough to remedy. Like, move across the street to the full-hookup CG. Or , rent a house or apartment. It didn't strike me as a place that charged a lot for rent. Maybe I'm wrong.
Also, the people in "town" are extremely friendly. I was sitting under the shade of the tree, and a local just came up and started a conversation. She invited me to lunch with herself and husband. I was apparently parked in front of their mailbox! DUH! What that has to do with the situation is unclear.
That was a long way around to saying , I don't think the residents would be much interested in someone "selling" solar power. I most certainly could be wrong. It happened once.
Regards,
WP