If I have a good coal burning plant, why do I need overpriced and purely redundant wind and solar? Having them when they aren't needed (when in fact the price of electricity is negative) is economically pointless. They become a vanity accessory like Tesla parked in a five car garage.
Nothing like a hopper fed coal stove that doesn’t need AC and you have a ton or two of coal on premises. That is a very warm and fuzzy.