What is a demand response event and how can BAS participate?

What is a demand response event and how can BAS participate?

• A. It is a grid-requested load reduction event
• B. A grid-requested load reduction event; BAS can shed HVAC or other loads to lower peak demand and costs
• C. It triggers random energy spikes
• D. It requires no communication with utilities

Answer: (B)

Demand response events are signals from grid operators asking a building to temporarily reduce its energy use during times of peak demand or grid stress. The goal is to lower overall peak demand and, in turn, reduce costs and help keep the grid reliable. A Building Automation System can participate by shedding or modulating controllable loads—most commonly HVAC, but also pumps, lighting, or other noncritical equipment—when a DR signal is received. The BAS can automatically adjust temperatures, sequence cooling or heating, or cycle equipment for a defined period, then return to normal after the event. This usually requires some communication with the utility or DR program to receive the signal and confirm the reduction, which is why it isn’t described as “no communication.” It also isn’t about triggering random energy spikes; the aim is a predictable, intentional reduction during the event.

Demand response events are signals from grid operators asking a building to temporarily reduce its energy use during times of peak demand or grid stress. The goal is to lower overall peak demand and, in turn, reduce costs and help keep the grid reliable. A Building Automation System can participate by shedding or modulating controllable loads—most commonly HVAC, but also pumps, lighting, or other noncritical equipment—when a DR signal is received. The BAS can automatically adjust temperatures, sequence cooling or heating, or cycle equipment for a defined period, then return to normal after the event. This usually requires some communication with the utility or DR program to receive the signal and confirm the reduction, which is why it isn’t described as “no communication.” It also isn’t about triggering random energy spikes; the aim is a predictable, intentional reduction during the event.