Studies have shown that at least 20 to 30 percent of the energy cost of an average warehouse, office, or other commercial space is related to lighting. Many businesses may not even be aware of how much their lighting is unnecessarily costing them. That's where Northwest Light Source comes in. For more than a decade, we've used our expertise to help businesses in the Portland, OR, metro area reduce their lighting-related energy costs. Our state-of-the-art commercial and industrial lighting solutions can help your business slash power consumption, in some cases by 50 percent or more.