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Commercial solar installers for businesses, properties, and farms.

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.

  • CSLB #1023627
  • 4.9 Google rating
  • A+ BBB rating

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 property owners choose OC Solar

OC Solar installers preparing ladder-racked service trucks outside the Irvine headquarters.

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.

Start with the operating reality

Bring the bill, the site, and the operating plan.

A useful commercial review starts before equipment is selected. We organize the property's energy use, physical constraints, and decision requirements so the first recommendation answers the right problem.

You do not need a finished specification to begin. Recent bills, the service address, and a short description of the property are enough for an initial conversation.

Two OC Solar team members reviewing a rooftop design on dual monitors in the Irvine office.
Site design · Roof geometry and equipment layout reviewed in the Irvine office.

Electric bills

Recent bills and the utility rate schedule establish the starting point. Interval data, when available, shows when the property actually uses power.

Operating profile

Business hours, seasonal peaks, planned equipment, fleet charging, pumps, and common-area loads help explain what the next system must support.

Site information

Roof plans, available land or parking, electrical service details, access constraints, and known roof work help define what is practical to study.

Decision requirements

Ownership structure, stakeholders, procurement requirements, and the preferred decision window keep the review aligned with the organization—not just the meter.

OC Solar team reviewing project data together in the Irvine conference room.
Project planning · Design, operations, and project inputs reviewed together.

One decision sequence

Evaluate the property before prescribing the system.

Commercial projects have more variables than a residential quote form can capture. The review moves from the account and operating load to the site, the relevant options, and a realistic delivery path.

01

Read the load and rate structure

The review begins with usage timing, tariff details, and the loads that matter most to the operation. That keeps the conversation tied to the actual account.

02

Screen the site

Roof geometry and condition, shade, land or parking options, electrical equipment, and access are reviewed before a system direction is selected.

03

Compare practical scenarios

Solar, storage, load management, and future electrical needs are considered as parts of one site plan. Only relevant options move into the proposed scope.

04

Define the project path

A viable concept still needs a clear route through engineering, utility and permitting requirements, construction coordination, commissioning, and handoff.

Equipment comes after project fit. When you are ready to compare the hardware context, review OC Solar's solar and storage product families →

Different properties, different constraints

Scope the project around how the property works.

These are planning paths, not template packages. The account, site, ownership structure, and operating needs determine which questions matter for each property.

Owner-occupied businesses

Connect the energy plan to operating hours, critical loads, planned equipment, parking, and the way the business expects the property to change.

Multifamily properties

Separate common-area loads, unit metering, shared equipment, parking, and ownership responsibilities before choosing the right project boundary.

Agricultural operations

Account for wells, pumping, refrigeration, processing, seasonal demand, available structures or land, and the operating calendar of the property.

Installer walking a flat roof with racking, flashed standoffs, and module electronics staged before panel placement.
Flat-roof work · Racking and electrical layout staged before modules.
Two OC Solar technicians wiring energy equipment and electrical panels on a stucco exterior.
Electrical integration · Equipment and subpanels wired in the field.

Process photography shows OC Solar field work and planning capability. These images are not presented as commercial-property case studies; project-specific proof is published only when the property data, media, and permission are verified.

Start with a site review

Give us the address and the energy question you need answered.

Share the service address and a recent bill if it is available. An OC Solar advisor can then identify the next useful inputs and whether the property is ready for a deeper review.

A large Southern California rooftop solar array against a blue sky

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
Outdoor battery storage bank at a Southern California property

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:

OC Solar team members at the reception desk of our Southern California office

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.

Yes — Orange County is our home base. We install commercial and business solar across Irvine, Anaheim, Santa Ana, and the rest of OC, plus LA, Riverside, and Southern and Central California. Local OC crews handle the design, electrical, and permitting, and we scope each commercial site individually rather than from a template.

We consult on commercial buildings, multifamily properties, and agricultural sites across Southern and Central California. Because every site differs, we scope each one individually rather than quoting from a template.

It depends on system size, your rate schedule, available incentives, and site conditions — all of which we confirm during the consultation. We don't publish a one-size-fits-all number because it would be misleading.

Often yes. For many businesses the biggest savings come from reducing demand charges and shifting load, which storage makes possible — so we design it in where it pencils out.

Request a commercial consultation. We'll review your bills and site, then walk you through realistic options with no obligation.

Yes — and it's a key 2026 distinction. While the residential §25D credit expired December 31, 2025, the commercial §48E clean-electricity investment credit remains available for business-owned systems through roughly 2027, and a business that owns its system may claim it directly. Tax treatment depends on your situation, so confirm details and timing with a qualified tax professional.

Demand charges are fees based on your single highest spike of power use in a billing period — often a large share of a commercial bill because they're driven by brief peaks, not total consumption. Solar cuts daytime energy charges, and battery storage can discharge to flatten the demand peaks panels alone can't reach. That pairing is central to most commercial designs we propose.

Yes — agricultural operations often have large, steady loads like irrigation pumps, processing, and refrigeration, plus the roof or land to host a sizable system. Solar offsets those heavy operating loads and hedges decades of rising energy costs. We scope wells, pumping, and seasonal demand directly with the owner during the consultation so the design fits how the operation actually runs.

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

10+
Years serving SoCal
Founded 2016
30+
MW installed
across Southern California
6,373+
Projects & service calls
by in-house crews
4.9★
Google rating
400+ reviews · BBB A+

Manufacturer certifications

  • Tesla — Powerwall Premier Certified Installer badge
  • Tesla — Solar Roof Premier Certified Installer badge
  • Tesla — Pro Council badge1 of 12 installers
  • EnphaseInstaller Network
  • QcellsQ.PARTNER
  • RECCertified Solar Professional
  • SolarEdgeCertified Installer
  • Owens CorningRoofing Preferred Contractor

Awards & recognition

  • Solar Power World — Top Solar Contractor 2024 badge2024
  • Solar Power WorldTop Solar Contractor2025
  • PanasonicTop Residential Installer of the Year2023
  • EY (Ernst & Young)Entrepreneur Of The Year — Finalist2025
  • Orange County Business JournalExcellence in Entrepreneurship Award2026
  • HouzzBest of Houzz2022
  • AngiSuper Service Award2024
  • Angi — Super Service Award 2025 badge
  • Angi — Pro Council — member badge
  • ConsumerAffairs — #1 Solar Company in California 2026 badge#1 in California2026
  • ConsumerAffairs — Buyer's Choice Award — Best Equipment 2026 badgeBest Equipment2026
  • ConsumerAffairs — Buyer's Choice Award — Best Installation 2026 badgeBest Installation2026

Ratings, license & partnership

  • Better Business Bureau — A+ Accredited Business badgeSince 2017
  • Yelp4.7★ rating
  • Google4.9★ rating
  • EnergySage5.0★ rating
  • CSLBLicense #1023627
  • Anaheim Ducks (NHL) — Official Solar Partner badgeTeam partnership

Keep researching

Before you commission commercial solar

What drives a commercial system's economics in 2026, and the incentives that still apply.

Solar panels on a terracotta tile roof above coastal rooftops, with the Pacific Ocean beyond

Refer & earn

Refer a friend.

Get $500.

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. 1

    Send their info

    Share your friend's name and a way to reach them — takes a minute.

  2. 2

    They go solar

    We design, install, and power on their system, start to finish.

  3. 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 review your commercial property?

Start with the service address, a recent electric bill if available, and the operating question you need answered.

Licensed, Bonded & Insured · CSLB #1023627