Many Utilities offer significant savings on your commercial electric for participation in their Demand Response Programs. In exchange for electrical load reduction during utility utility peak demand events, you get a monthly credit; much like the residential summer discount program. The larger California utilities are offering a rebate to cover the cost of the demand response equipment.
It is easy to do with an electrical demand control system. The demand controller recieves signals from the utility to reduce load, and lowers its peak threshold accordingly. It is all done automatically in the background without the need for customer action. Typically for 15 events a year for a couple of hours each, you earn a substantial monthly credit. Well worth investigating.