Energy Service Partners Inc.

Energy Service Partners Inc. (ESP), based in Torrance, California, is a leading residential solar installer with a strong focus on quality workmanship and customer support throughout the life of each system. Since its founding in 2015, ESP has installed over 18,000 residential solar systems across California and has built an extensive network of independent authorized dealers and sales partners. The company emphasizes streamlined processes—often completing installations faster than industry averages—and provides Pearl Certification documentation to help homeowners capture higher home value from their investment. ESP offers comprehensive services including site surveys, design/engineering, installation of advanced photovoltaic products, battery storage solutions for backup power needs, roofing services tied to solar projects, ongoing maintenance plans with remote monitoring/reporting capabilities,as well as robust financing options.
ESP has received significant industry recognition: it was ranked No. 2 among all California installers and No. 10 nationally in the Residential category on Solar Power World’s 2023 Top Solar Contractors List; it also placed No. 89 overall among U.S. installers that year. The company employs over 100 staff members along with hundreds of subcontractors/sales partners,installing more than 22 MW of solar capacity in a single recent year.
Beyond business operations ESP demonstrates community commitment through charitable giving—supporting organizations like GivePower to provide clean energy access globally—and by dedicating proceeds from every install toward environmental action initiatives.Their leadership team prioritizes treating every project as if it were their own home.