Reduce electric utility demand charges with Arista’s Power on Demand (PoD) “Peak-Shaving” system. Arista’s Power on Demand (PoD) solution is designed to reduce demand charges that can significantly increase utility bills for large users of electricity. This innovative, patent-pending system is designed to utilize energy generated by wind turbines and/or solar arrays, and also energy stored from the grid itself, to reduce peak electricity demand at the consumer level. The system can dramatically lower your utility bills and provides a Return on Investment (or payback period) that no stand-alone renewable energy system can match.