REC Solar
Renewable Energy Semiconductor ManufacturingCalifornia, United States201-500 Employees
REC Solar, founded in 1997 and based in San Luis Obispo, California, operates in the renewable energy semiconductor manufacturing space by developing and installing on-site solar and storage systems for commercial and public-sector customers across the United States. The company provides end-to-end services—from design and construction to ongoing management and maintenance—intended to support the full lifecycle of each project. With a focus on safety and quality, it has completed more than 800 solar and storage installations and aims to maintain high standards in its work. It serves a nationwide client base through a mid-sized company footprint. A notable development in 2026 was a collaboration with Kingspan Insulation North America and Dynamic Energy to deliver an 881 kW rooftop solar array at Kingspan's manufacturing facility in Mendota, Illinois. The firm’s activity across partnerships and projects demonstrates its role as a national provider of solar solutions for commercial and public-sector organizations.