System sizing, payback, and what's changed for businesses.

Commercial & Multifamily
Commercial solar installers for businesses, properties, and farms.
OC Solar has completed both residential and commercial installations since 2016. Commercial, multifamily, and agricultural projects are unique — so we start with a consultation: we look at your usage, your roof or land, your rate schedule, and your goals before proposing anything.
Commercial, multifamily, and agricultural solar is consult-driven and scoped per project — system size, financing, incentives, and timelines vary widely by site and rate schedule. Figures and incentive availability are confirmed for your specific project during the consultation; nothing here is a quote or a guarantee.
Why homeowners choose OC Solar

Consult-first, never templated
Every commercial site is different. We start by understanding your usage, rate schedule, and roof or land before designing anything.
Solar paired with storage
For many businesses the savings come from cutting demand charges and shifting load — which is why we design storage in from the start.
One licensed contractor
The same CSLB-licensed company (#1023627) that has installed since 2016, with in-house crews — not a brokered hand-off.
Built for property owners
Multifamily, commercial, and agricultural owners get one accountable point of contact from consultation through power-on.

Why commercial solar is its own conversation
Commercial electricity bills are driven by more than usage — demand charges, time-of-use windows, and tariff structure all matter. The right system depends on your specific rate schedule and how your property uses power, so we begin with a consultation rather than a one-size-fits-all proposal.
- Demand-charge and time-of-use analysis
- Roof, ground-mount, or carport options reviewed
- Designed around your actual load profile

Multifamily and agricultural
Multifamily properties and farms have their own considerations — metering arrangements, shared loads, well and irrigation pumps, and seasonal demand. We scope each of these directly with the owner during the consultation so the design fits how the property actually operates.
- Multifamily metering and shared-load planning
- Agricultural pumping and seasonal demand
- Owner-direct scoping and one point of contact
Service areas
Where we install
Commercial & Multifamily across Southern and Central California — with in-house crews working from local offices. A few of the cities we serve:

Good questions
Commercial & Multifamily FAQ
Yes — OC Solar has completed both residential and commercial installations since 2016. Commercial work is consult-driven, so we start by reviewing your usage, rate schedule, and site before proposing a design.
More questions? Browse all 74 FAQs →
Rated 4.9★ on Google by Southern California homeowners. Read the reviews →
Why homeowners choose OC Solar
Verified track record, in-house crews
Manufacturer certifications


1 of 12 installers- EnphaseInstaller NetworkStorage-certified · IQ Battery
- QcellsQ.PARTNERAuthorized installer
- RECCertified Solar ProfessionalProTrust warranty program
- SolarEdgeCertified Installer
- Owens CorningRoofing Preferred Contractor
Awards & recognition
2024- Solar Power WorldTop Solar Contractor2025#203 nationally
- PanasonicTop Residential Installer of the Year2023Southern California
- EY (Ernst & Young)Entrepreneur Of The Year — Finalist2025Pacific Southwest
- Orange County Business JournalExcellence in Entrepreneurship Award2026
- HouzzBest of Houzz2022
- AngiSuper Service Award2024


#1 in California2026
Best Equipment2026
Best Installation2026
Ratings, license & partnership
Since 2017- Yelp4.7★ rating451 reviews
- Google4.9★ rating400+ reviews
- CSLBLicense #1023627Licensed · Bonded · Insured
Team partnership
Keep researching
Before you commission commercial solar
What drives a commercial system's economics in 2026, and the incentives that still apply.
What survives after the federal §25D credit expired.

Refer & earn
Refer a friend.
Know someone tired of rising utility bills? Send them our way. When your friend or family member goes solar with OC Solar, we'll thank you with $500.
- 1
Send their info
Share your friend's name and a way to reach them — takes a minute.
- 2
They go solar
We design, install, and power on their system, start to finish.
- 3
You get $500
Paid after their system is installed. Refer as many as you like.
Or call 949-427-8817 to refer someone. Terms apply.
Ready to take control of your power bill?
Get a fast, honest, no-pressure estimate from a real local advisor — built from your actual roof and usage.
Already a customer? Refer a friend & get $500 · See all OC Solar reviews
Licensed, Bonded & Insured · CSLB #1023627