Occidental Power
San Francisco's first solar electric company, providing solar and energy storage since 1989
37+
Years in Business
35
Customer Reviews
50 mi
Service Area
1-10
Employees
SurgePV Score
About Occidental Power
Occidental Power is San Francisco’s first solar electric company, founded in 1989. Located at 5982 Mission Street in the Excelsior district, the company has over 35 years of experience designing, installing, and servicing solar photovoltaic systems, solar thermal systems, battery energy storage, and cogeneration systems for residential and commercial customers throughout the San Francisco Bay Area.
The company is BBB-accredited with an A+ rating since 2025 and holds CSLB license number 591549. Occidental Power installs Solaria panels alongside SolarEdge and SMA inverters, and offers battery storage from Tesla Powerwall and Sonnen. The company also provides solar water heating systems and solar tube skylights. Occidental Power’s BuildZoom score of 112 places it in the top 3% of California licensed contractors.
On Yelp, Occidental Power has a 4-star rating from 35 reviews, and on Angi the company is rated 5 out of 5. The company is family-owned and has deep familiarity with San Francisco’s permitting processes and local incentive programs. Occidental Power operates from its Mission Street location Monday through Friday, 8am to 5pm.
Service Area
Occidental Power serves the following areas within a 50-mile radius:
Contact Information
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Services Offered
Certifications & Accreditations
Partner Manufacturers
Panels
Inverters
Batteries
Warranty Coverage
25 years
12 years
10 years
What to Expect: Solar Installation Process
Initial Consultation
Free site survey and system design
Quote & Design
Detailed proposal with costs and savings
Installation
Panels, inverter, and wiring (1-3 days)
Inspection
City inspection and utility interconnection approval
Go Live
Utility grants PTO, system goes live
Customer Reviews
4.5
35 reviews
Patricia C.
Occidental Power has been around for decades and their experience really shows. Our solar installation was done professionally and efficiently.
Frank L.
We chose Occidental for their long track record in San Francisco. They handled all the permitting and the system is performing above expectations.
Helen T.
Good installation and fair pricing. The team was knowledgeable about the GoSolarSF program and helped us navigate the incentive application.
Frequently Asked Questions About Occidental Power
What services does Occidental Power offer?
Occidental Power offers Solar Installation, Battery Storage, Maintenance, solar_water_heating.
Is Occidental Power NABCEP certified?
Occidental Power holds the following certifications: BBB Accredited, CSLB Licensed. Contact them directly for the latest accreditation details.
What areas does Occidental Power serve?
Occidental Power serves San Francisco, Daly City, South San Francisco, Pacifica, San Bruno, San Mateo. They are based in San Francisco with a service radius of 80 km.
What warranty does Occidental Power offer?
Occidental Power offers 25-year panel warranty, 12-year inverter warranty, and 10-year installation/workmanship warranty.
How are Occidental Power's customer reviews?
Occidental Power has a 4.5/5 rating based on 35 customer reviews. Customers consistently rate them highly.
How long has Occidental Power been in business?
Occidental Power was founded in 1989 and has been in business for 37 years. They are one of the more experienced solar installers in their area.
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