Sustainable Energy Group in Grass Valley, California

Name: Sustainable Energy Group
Address: 420 Sierra College Dr #320, Grass Valley, CA, 95945, US
Telephone: 1 530-273-4422
Rating: 5

Updated Mar 11, 2025

1 530-273-4422 • 420 Sierra College Dr #320, Grass Valley, CA 95945

Sustainable Energy Group Inc. is a Grass Valley based solar contractor offering energy efficiency, solar, and backup power services in Northern California.

5

42 Reviews

★★★★★

Google Rating

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About Sustainable Energy Group

Sustainable Energy Group Inc. is a Grass Valley, California-based solar contractor established in 2004. The company specializes in comprehensive energy efficiency, solar, and backup power services for residential and commercial buildings. SEG is a multi-licensed contractor with a team of experienced professionals, offering services including residential solar, commercial solar, non-profit solar, off-grid solar, generators, battery backup systems, and roofing with solar integration. The company prides itself on excellent customer service and offers a 25-year parts and labor warranty. SEG aims to maximize value in performance and return on investment while maintaining quality craftsmanship and state-of-the-art technology. The company's vision is to empower communities to build a more sustainable world, and its mission is to help people realize sustainability through renewable energy and energy efficiency.
- Residential Solar: Complete solar installation services for homes
- Commercial Solar: Solar solutions for businesses and commercial properties
- Non-Profit Solar: Solar installations for non-profit organizations
- Off-Grid Solar: Independent solar systems not connected to the power grid
- Generators (Home & Commercial): Backup power generator installation and service
- Battery Backup Systems: Energy storage solutions for homes and businesses
- Roofing + Solar: Combined roofing and solar panel installation services
- Electrical Service & Repair: General electrical work and maintenance
- EV Charger Installation: Installation of electric vehicle charging stations
- Solar Panels: High-quality photovoltaic panels for energy generation
- Battery Storage Systems: Energy storage solutions for backup power
- Generators: Backup power systems for homes and businesses
- EV Chargers: Electric vehicle charging equipment
- 25-year parts and labor warranty on solar installations
- No roof leaks guarantee (19+ years with no roof leaks)
- Voted Best Solar Company in Nevada County
- Member of Nevada County Contractor Association
- Member of Grass Valley Chamber of Commerce
- Member of CALSSA (California Solar & Storage Association)
- Licensed as general contractor, electrical contractor, solar contractor, and plumbing contractor
- Publishes the "Sustainable Guide for our Sierra Foothills" bi-yearly
Phone
1 530-273-4422

Address
420 Sierra College Dr #320, Grass Valley, CA 95945

Business Hours
Monday: 8AM-4PM

Tuesday: 8AM-4PM

Wednesday: 8AM-4PM

Thursday: 8AM-4PM

Friday: 8AM-12PM

Saturday: Closed

Sunday: Closed

Get A Quote Contact Sustainable Energy Group Today

Reasons Why You Should Work With Sustainable Energy Group

Local Experts: Grass Valley owned and operated since 2004
Quality Products: Hand-picked solar panels and equipment
Experienced Team: Professional designers and installers
Track Record: No roof leaks in 19 years of business
Comprehensive Services: Solar, batteries, generators, EV chargers, and electrical work
Customer Service: Clear and honest communication with no sales gimmicks
Local Knowledge: Publishing local sustainability guide demonstrates commitment to community
Value Focus: Maximizing performance and return on investment without sacrificing quality
Craftsmanship: Attention to detail, technical knowledge, and state-of-the-art technology
Free Consultations: No-obligation quotes and system designs

Customer Reviews for Sustainable Energy Group

Ratings & Reviews

Read all of Sustainable Energy Group's Google reviews here

Latest Review

★★★★★

SEG came highly recommended to us by another reputable contractor in the construction industry, as well as some of our clients. SEG met and exceeded our hopes and expectations at every phase of our Solar Project. My wife and I are both extremely pleased with the entire process and with our dealings with every member of the SEG team. Congratulations to a professional and ethical team. SEG should and do take pride in the excellent work they do.
chuck farrar
★★★★★

I have done several projects on an apartment building with Sustainable Energy Group.
Calder Daenzer
★★★★★

Sustainable Energy Group has stayed a small company because they care deeply about what they do and every single one of their customer's. Watch out, cause now they're growing cause EVERYONE want's good service and a well designed system! This is the PREMIER renewable energy contractor in Nevada County!
No Name
★★★★★

These folks are great, friendly, and trustworthy. We thought we had a problem with our inverter and they immediately scheduled us for an inspection at a very fair price. When I cancelled our appointment after discovering we had a switch turned off, they refunded my inspection fee with a cheerful with a pleasant attitude. Kindal is an excellent customer service representative.
David Villanueva
★★★★★

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!
Ryan Carroll
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Get in touch with Sustainable Energy Group in Grass Valley today!

Address: 420 Sierra College Dr #320, Grass Valley, CA 95945

Phone: 1 530-273-4422

Hours:

Monday: 8AM-4PM

Tuesday: 8AM-4PM

Wednesday: 8AM-4PM

Thursday: 8AM-4PM

Friday: 8AM-12PM

Saturday: Closed

Sunday: Closed

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