System and method for reducing peak and off-peak electricity demand by monitoring, controlling and metering lighting in a facility

A system for metering energy use in a facility having a plurality of lighting fixtures, comprising:

• a master controller;
• a first group of lighting fixtures;
• a first lighting fixture configured to wirelessly transmit an override signal to the first group of lighting fixtures within a wireless transmission range of the first lighting fixture;
• a second group of lighting fixtures outside the wireless transmission range of the first lighting fixture;
• wherein one or more lighting fixtures of the first group of lighting fixtures are configured to retransmit the override signal received from the first lighting fixture to the second group of lighting fixtures;
• wherein the second group of lighting fixtures are configured to, in response to receiving the retransmitted override signal, conduct an override of normal operation and report a status update to the master controller via at least one retransmission by one or more of the first group of lighting fixtures;
• wherein the master controller is configured to meter lighting system energy usage using at least the status information from the second group of lighting fixtures retransmitted to the master controller by the one or more lighting fixtures of the first group of lighting fixtures.

A system of lights for use within a zone of a building, comprising:

• a first lighting fixture comprising a first wireless transceiver;
• a second lighting fixture comprising a second wireless transceiver;
• wherein the first wireless transceiver receives a control signal, the control signal configured to change a state of the first lighting fixture;
• wherein the first wireless transceiver is further configured to retransmit the control signal to the second lighting fixture.