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Demand response lighting: quick facts

Demand response programs, originally introduced by utilities and power providers, help address electrical grid capacity by managing customer demand. These programs provide financial incentives for reduced usage during peak times. Here are eight things to know about demand response lighting and other demand response concerns.

  1. According to 2016 Title 24, buildings larger than 10,000 square feet must be capable of an automatic reduction in lighting power if a demand response signal indicates a measurement at least 15 percent below the total installed lighting power. This requirement excludes spaces with a lighting power density of 0.5 watts per square foot or less.
  2. California buildings smaller than 10,000 square feet can earn a 5 percent lighting power allowance credit by incorporating demand-responsive lighting control systems.
  3. Projects that participate in demand response lighting and other demand response programs can earn credits from the LEED® v4 green building rating system.
  4. Buildings of all sizes can lower total energy costs and reduce stress on the local energy grid by incorporating demand response measures.
  5. Large, networked lighting control systems can receive demand response signals directly from the utility or indirectly via the HVAC system, lighting system and building automation network (BACnet).
  6. Direct communication between the lighting control system and utility is generally the best way to share demand response signals.
  7. If a building has a networked lighting system, the demand response signal can be shared directly through a certified virtual end node, a type of system accessory.
  8. Even buildings with small, stand-alone lighting systems can access the benefits of demand response lighting. The most cost-effective option begins with demand-responsive lighting controls that allow the accessory to be daisy-chained to various controllers and do not need any programming.