Call Now
Website
Call
Business Details
22 Years
experience
Your Trusted Solar Partner in Grass Valley, CA
Sustainable Energy Group has been a trusted leader in renewable energy solutions since 2004, specializing in solar and backup power systems for residential, commercial, and nonprofit clients across Northern California. As a locally owned and operated business based in Grass Valley, we combine over two decades of industry expertise with a commitment to sustainability and customer-centric service. Our team of licensed professionals delivers high-performance solar installations, battery backup systems, and energy efficiency solutions, backed by a 25-year parts and labor warranty. We prioritize clear communication, innovative design, and meticulous craftsmanship to ensure long-term value for our clients. Our dedication to quality is evidenced by our 19-year track record of zero roof leaks and partnerships with trusted local contractors for roofing integration.

We empower communities through education, personalized consultations, and a collaborative approach to achieving energy independence. Our mission extends beyond installationswe advocate for regenerative practices and environmental stewardship through initiatives like publishing the Sierra Foothills Sustainable Guide. With certifications in multiple disciplines including electrical, plumbing, and general contracting, we maintain rigorous standards for safety, compliance, and technical excellence. Our customer testimonials highlight our responsiveness, transparency, and ability to optimize energy savings through tailored solutions. From initial design to post-installation support, we ensure seamless transitions to sustainable energy systems while fostering lasting relationships with our clients.
Services
Residential Solar Commercial Solar Battery Backup Systems Roofing Integration Non-Profit Solar Off-Grid Solar
Details
  • Year established: 2004
Highlights and features
  • Local experts based in Grass Valley since 2004
  • 25-year parts and labor warranty on all installations
  • Experienced designers with 400+ solar systems installed
  • Zero roof leaks reported in 19 years of service
  • Clear communication with no sales gimmicks or hidden fees
What people say
Excellent customer service Knowledgeable team Zero roof leaks 25-year warranty Energy savings expertise
Services
Residential Solar
Custom solar panel installations for homeowners seeking energy independence and reduced utility bills. Our systems integrate with battery backup options to ensure power continuity during outages. Backed by a 25-year warranty covering both parts and labor.
Commercial Solar
Tailored solar solutions for businesses and nonprofits aiming to cut operational costs while demonstrating environmental responsibility. Includes large-scale installations, tax incentive optimization, and integration with existing infrastructure for maximum efficiency.
Battery Backup Systems
Advanced battery storage solutions from trusted brands like SolarEdge and LG Chem. These systems store excess solar energy for use during peak demand periods or power outages, enhancing energy self-sufficiency and cost savings.
Roofing Integration
Seamless solar panel and roofing installations through our partnership with MEC Builds. This coordinated approach ensures optimal placement of solar mounting hardware before roofing materials are applied for enhanced aesthetics and durability.
Energy Efficiency Consultations
Comprehensive assessments identifying opportunities to improve home energy performance. Services include air leakage testing, insulation evaluation, and HVAC optimization recommendations to maximize solar system effectiveness and overall energy savings.
People
Brian Gardner
Owner
20+ years in construction with 15 years specializing in green energy. Expertise in energy efficiency upgrades and photovoltaic systems integration with batteries and generators.
Joe Nelson
Lead Electrician
9-year SEG project manager with 8 years solar thermal experience. Licensed C-46 and C-10 contractor specializing in complex electrical systems integration.
Dave Stokes
Lead Contractor
Photovoltaics expert since 2008 with electrical engineering background. Licensed B, C10, and C36 contractor ensuring code-compliant, high-quality installations.
Megan Volheim
Drafter/Designer
Architectural drafter with associate degrees in civil drafting and social services. Specializes in creating precise solar system designs that balance functionality and aesthetics.
Harry O'Rourke
Sustainable Business Development
16+ years in sustainable development with expertise in permaculture design and regenerative farming. Manages business growth and IT systems while promoting eco-education initiatives.
Questions
What solar services do you offer for residential properties?
We provide complete residential solar installations including system design, permitting, and grid-tied or off-grid solutions with battery backup options.
Do you offer commercial solar solutions?
Yes, we specialize in commercial solar systems for businesses, nonprofits, and new housing developments with tailored energy production plans.
What backup power options are available?
We install battery storage systems from SolarEdge, LG Chem, and Generac, along with generator integration for uninterrupted power supply.
Are financing options available for solar installations?
We offer flexible financing through trusted partners including upfront payment discounts and monthly payment plans to suit different budgets.
What areas do you serve?
We serve Northern California including Nevada County, Placer County, Yuba County, El Dorado County, and surrounding regions.
Videos