It’s hard to say. If they use photvalic instead of pure solar, they can top off a lack of sun with electricity from other sources to keep the hot water warm (ou

It’s hard to say. If they use photvalic instead of pure solar, they can top off a lack of sun with electricity from other sources to keep the hot water warm (outside of winter when it’s all natural gas based anyways). Ome would think they could do a better job with personal heat pumps.