http://www.axiomexergy.com http://www.axiomexergy.com -- they build "ice-batteries" where they create ice at night when it's cool and electricity is off-peak,

http://www.axiomexergy.com http://www.axiomexergy.com -- they build "ice-batteries" where they create ice at night when it's cool and electricity is off-peak, then use that ice to cool industrial refrigerators (supermarkets, cold storage facilities, etc) during the day.