Solar Energy World

Solar Energy World rounds out our Pennsylvania top three on the strength of an unusually deep regional footprint and a sustained national ranking that few Mid-Atlantic installers match. The company was established in 2009, is headquartered at 14880 Sweitzer Lane in Laurel, Maryland, and operates a regional office at 7930 National Highway in Pennsauken, New Jersey that serves the company's Pennsylvania and southern New Jersey installation pipeline. Pennsylvania is listed as a primary service state alongside Maryland, Delaware, Virginia, New Jersey, Washington DC, and Florida, and the company has been ranked the number-one residential installer in Maryland for seven consecutive years. Solar Power World ranked Solar Energy World number six nationally for residential kilowatts installed in 2024, a placement that puts them in rare company among independently owned installers. Their reported installation total exceeds 26,000 systems with more than 170,000 kilowatts deployed across the Mid-Atlantic. What stood out to our research team is the in-house structure. Solar Energy World employs its own NABCEP-certified solar designers and licensed master electricians and runs locally based installation crews rather than subcontracting the labor, which is a meaningful differentiator at this volume. Equipment selection skews toward established tier-one panels including Silfab, Qcells, LONGi, and REC, paired with Fronius string, Enphase microinverter, and SolarEdge optimizer platforms, and battery options from Tesla, Enphase, and SolarEdge. Warranty coverage on installed systems runs twenty to twenty-five years depending on equipment. The company is BBB-accredited with an A+ rating and a 4.56 out of 5 customer review score, and reviews have generally praised installation quality and professionalism, though some homeowners have reported communication gaps during post-installation service and slower than expected response on warranty calls. Pennsylvania buyers should confirm in writing which regional crew will handle their project, request the NABCEP credential of the assigned designer, and ask which interconnection territory the company most frequently permits in. With a composite score of 72.8 out of 100, Solar Energy World holds the third-ranked position in Pennsylvania for 2026.