Yes, my thought was to use the windmill to run the heat pump, then buffer the heat as hot water in an insulated tank to heat the house. Not really practical unless you live in a place with fairly regular wind in the winter. Where I live, winter air tends to be fairly still with occasional exceptions and I could be wrong but I doubt it would be a great way to heat the house.

Same with solar, in the dead of winter the sun is at quite a low angle in the sky, not even above the tree tops, and I doubt there's much to be gained either from photovoltaic solar or using it to directly heat water for the house.