Aka, really sunny just as suggested. Cooling at night requires batteries, but their cost is offset by how cheap they are to charge with excess solar resulting

Aka, really sunny just as suggested. Cooling at night requires batteries, but their cost is offset by how cheap they are to charge with excess solar resulting in positive feedback loops. Further, AC needs to work far less hard at night as you avoid solar gain through windows etc, fewer devices are on reducing heat gain, outside temperature drop further reducing heat gain while also increasing AC efficiency.