Northern Sound & Light (NSL), a pro audio and lighting dealer in Pennsylvania with a vibrant online presence, has invested in a new solar power system as part of a larger green strategy for the firm. NSL’s solar power system is comprised of 117 photovoltaic solar panels feeding three current inverters. The 117 panels cover nearly the entire southern facing roof of NSL’s facility. The system is literally a power plant and is estimated to produce approximately 25,170 kW annual average, enough electricity that NSL will achieve energy positive status and be able to sell electricity back to the utility. more