In the case of occupant responsive lighting

Daintree’s ControlScope solution will be used to control existing fluorescent lights in one building and to control Cree’s lights in another building. Powell notes that one of the advantages of LEDs is their inherent controllability, but the agency still doesn’t know if the cost-benefit is right.

“The point is to see whether or not we can cost-effectively install that at market prices today,” said Powell. But cost isn’t the only factor; occupant satisfaction and maintainability also play a part in evaluating technology.

In the case of occupant responsive lighting, the technology saved 27 percent over baseline conditions for spaces illuminated 12 hours a day, five days a week -- and occupants embraced the upgrades. For LEDs, the savings will have to significantly beat what’s achievable with controllable fluorescents to make inroads with GSA.

Daintree Networks and Cree are already working together with the Sacramento Municipal Utility District, delivering the joint solution at a wholesale distributor. The retrofit to the office and breakroom resulted in more than 91 percent savings.