Evaluation of a DC Lighting Directly Coupled to Solar Photovoltaic System for Commercial Buildings

Brookhaven National Laboratory will evaluate a DC system directly-coupled to a solar energy system that enables the use of DC power directly for office lighting. This system will use equipment developed by Nextek Power Systems and will being installed in a Suffolk County office buildings. BNL will document the energy savings and value propositions available from this type of system compared to a conventional DC to AC lighting system powered a solar photovoltaic system. This work will provide information that can be used to determine the value propositions for installing this type of system at larger scale in buildings throughout New York State.