Apr 6, 2017 Furniture Superstore With the help of Efficiency Maine’s Distributor Screw-In LED Program, Furniture Superstore in South Portland replaced its 800 75-watt PAR30 incandescent bulbs with 13-watt LEDs. Electricity savings is estimated to be $22,800 per year. Categories Residential Registered Vendor Newsletter Archive HESP Weatherization Events Blog Residential Program Highlight Organizational Highlight Energy Tips Commercial