Solar Expertise for Every Stage of Your System
Alternative Energy Systems (AES) has been helping Northern California homeowners, businesses and organizations with solar for more than 20 years. From new solar installations and system expansions to battery storage, monitoring, maintenance and repairs, our team provides solar solutions designed around each customer’s energy needs.
Already have solar? AES also services and maintains existing systems, including systems we did not originally install. We work with residential, commercial, agricultural and public-sector solar systems, helping customers keep their systems operating reliably and effectively over time.
Why Choose AES?
For more than 20 years, Alternative Energy Systems has provided solar installation, service, maintenance and support throughout Northern California. As a locally owned, solar-focused company, AES combines hands-on regional experience with broad technical expertise across residential, commercial and specialty solar systems.
20+ Years of Solar Experience: Decades of experience designing, installing, maintaining and supporting solar energy systems.
Installation & O&M Expertise: AES supports solar systems throughout their lifecycle, from design and installation to monitoring, maintenance, troubleshooting and repair.
Broad Technical Knowledge: AES works across major solar panel, inverter, battery storage and monitoring platforms.
Industry Connections: As a founding member of the Amicus National Solar Cooperative, AES has access to shared industry knowledge and resources while remaining locally owned and operated.
Our Products
Solar Operations & Maintenance
Already have solar? AES provides operations, maintenance and repair services for residential, commercial, agricultural and public-sector solar systems throughout Northern California, including systems we did not originally install.
Our team can help with troubleshooting, system health checks, preventive maintenance, monitoring, warranty/RMA support, panel washing, pest mitigation and other services designed to keep solar systems operating reliably over time.
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Our Testimonials Speak for Themselves
Meet Ian and Danielle, Chico homeowners who chose high-efficiency SunPower panels for their first home.
Who We Serve
Residential
Solar, storage, service and ongoing system support for homeowners and residential properties.
Commercial & Industrial
Solar solutions and ongoing support for businesses, facilities and organizations.
Agriculture
Solar and energy solutions for farms, ranches and agricultural businesses.
Public Sector
Support for cities, counties, schools, universities, water districts and municipalities.
Solar Asset Managers
O&M, monitoring, dispatch and system support for managed solar portfolios.
Serving Northern California
AES provides solar installation, energy storage, operations and maintenance, and system support throughout the North Valley and surrounding Northern California communities.
Our primary service area includes Butte, Glenn, Tehama, Colusa, Shasta, Yuba and Sutter counties. For commercial, industrial, municipal and agricultural systems, AES also serves Sacramento, Yolo, Solano, Placer and El Dorado counties.
- Visit AES
- 13620 Hwy 99, Chico, CA 95973
- Office Hours
- Monday-Friday, 8 a.m. - 5 p.m.
- Saturday: In-home appointments by request