Sustainable Energy Group (SEG) is a trusted solar and electrical contractor serving homes, businesses, and organizations since 2004. Based in Grass Valley, CA, with offices in Auburn, CA, they have over 18 years of experience installing solar power systems throughout the Sierra Foothills of Northern California, including Nevada City, Penn Valley, Lake of the Pines, and surrounding counties such as El Dorado, Placer, and Yuba. SEG specializes in designing custom solar systems, battery backups, and generators, providing high-quality and reliable service. Customers praise their professionalism, friendliness, and trustworthiness. They are known for good communication, keeping clients informed throughout projects, and going above and beyond to ensure completion—even when facing delays from other providers like PG&E. Their team is quick, attentive, and uses state-of-the-art equipment to meet individual needs, whether installing solar panels or batteries. Clients have appreciated their prompt response to issues, such as replacing batteries or inspecting equipment, with many highlighting their excellent customer service. Their work consistently results in successful installations that produce ample electricity and meet the specific needs of each customer. Recognized as the best of Nevada County Solar Company, SEG is highly recommended for solar installation and related services in the region.
I had my solar and LG battery Backup installed by another company. The battery eventually died after 2 years and they were no longer certified to do the work. After more emails an calls then I could count I reached out to SEG. Within two weeks of the service call I had a NEW LG battery installed. Matt was awesome!
August 2023
SEG has always been a pleasure to work. They provide a professional experience from start to finish!
October 2022
Getting solar was an excellent experience with SEG. They are professional, fast, affordable priced, and staff are extremely knowledgeable about the type of systems that are best for your individual needs. Their warranty is also the best I found. Highly recommended.
