Abstract: Disclosed is a system and method for monitoring hot water supply in a load control network, and more particularly for ensuring that there is sufficient hot water available for a customer participating in a demand response program that uses, at least in part, water heaters as a component of the demand response program. A multi-meter that is external to the water heater is used to monitor an electrical power supply circuit on the water heater, to report preferably volts, amps, and power factor of the water heater. The multi-meter may use these measured values to, in turn, determine a current charge state of the water heater and thus ensure maintenance of an adequate supply of hot water, even in times of demand response curtailment.

Abstract: An energy regulation system is provided that comprises a plurality of demand resources, a metering load controller for each demand resource on the plurality of demand resources, an energy modulator capable of consuming or producing additional power on demand, a system controller communicatively connected to the metering load controller, energy modulator, and an energy source, wherein the system controller manages the energy demand from the metering load controller, the energy modulator, and the energy source.