A well insulated water tank that is electrically chilled during peak solar and used to cool down air later in the day/night could solve that storage problem wit

A well insulated water tank that is electrically chilled during peak solar and used to cool down air later in the day/night could solve that storage problem without any cell degradation. Theoretically, with perfect insulation, this could even reduce the total electricity demand, when the conversion from electricity to a temperature gradient happens during a time when the base temperature is low.