The 2026 per-watt cost picture and what moves the number.

Orange County · We serve this area
Solar & Battery Installation in Westminster, CA
Westminster sits on the flat coastal plain of northwest Orange County, a few miles inland from the Huntington Beach coastline, and is best known as the home of Little Saigon along Bolsa Avenue. Most of the city was built out as post-war tract housing in the 1950s through 1970s — single-story ranch homes on modest lots — with newer townhome and gated communities filling in around the Little Saigon corridor. Homes here are served by Southern California Edison, where time-of-use rates make the 4–9 p.m. window the most expensive electricity of the day.

What going solar looks like in Westminster
Westminster homes are served by Southern California Edison (SCE), and permits run through City of Westminster Building Division (Community Development Department). We manage both for you. Under NEM 3.0, the smart play here is solar sized to charge a battery, so you run your home on stored solar during the expensive evening peak instead of buying power at top rates.
See how solar works for Southern California Edison customers →
- Permits handled through City of Westminster Building Division (Community Development Department)
- Southern California Edison (SCE) interconnection & PTO managed end-to-end
- Custom, roof-first design for your home
- One company for solar, battery, Tesla Solar Roof & HVAC
Local to Westminster
Solar designed around Westminster
We design and install across Westminster — including Little Saigon, Westminster Village, Barber City, Indian Village, Sol Vista, Civic Center, and Westmont.
Climate & energy use
Westminster is only about five miles from the coast, so mornings often start under the marine layer and summer afternoons run milder than inland Orange County — but air conditioning still ramps up in late summer, and SCE's 4–9 p.m. time-of-use peak hits exactly when panels stop producing. Wildfire and PSPS exposure is low on this flat, fully urbanized coastal plain, so battery design here is driven mostly by shifting solar production into the evening peak and providing everyday outage backup rather than fire-season shutoffs.
Roofs & housing stock
Roughly half of Westminster's housing went up between the 1950s and 1970s — single-story ranch and tract homes that mostly carry composition shingle, many re-roofed over the decades — which generally makes for straightforward installs with simple attachments. Newer townhome tracts and the gated infill communities around Little Saigon often carry concrete S-tile, where we use tile-appropriate mounting such as comp-out or tile hooks to keep the roof watertight.
HOA & design review
Most of Westminster's mid-century tracts have no HOA, but planned communities like Westminster Village and many of the newer townhome and gated developments near Little Saigon do have architectural review. California's Solar Rights Act limits what an HOA can deny, and we prepare and submit the design-review paperwork whenever it's required.
Westminster by the numbers
38
projects & service calls in Westminster
That's part of the 6,373 projects & service calls OC Solar has handled across Southern California since 2016. Per our company records as of June 2026.
Westminster savings
See your Westminster solar estimate
Enter your address and bill for an instant, roof-modeled estimate — no email, no obligation.
We also serve nearby
See our work
Browse real Southern California installations and verified homeowner reviews.
What we install
Our services in Westminster
Why Westminster chooses OC Solar
Local crews, verified track record
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
Westminster solar FAQ
Common questions in Westminster
Yes — we serve Westminster (Orange County) with solar, battery storage, the Tesla Solar Roof, and HVAC. We serve it from a nearby OC Solar office.
Want exact numbers for your home? Get a free, itemized estimate.
Keep researching
Solar research for Westminster homeowners
The cost, worth-it, NEM 3.0, and battery guides behind every honest California solar decision.
The honest 2026 worth-it analysis, utility by utility.
The net-billing rules that decide your savings.
When storage pays under NEM 3.0 — and when it doesn't.

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.
Get a free solar estimate in Westminster
A local advisor will build you an honest, itemized proposal from your real roof and usage.
Already a customer? Refer a friend & get $500 · Leave us a review
Licensed, Bonded & Insured · CSLB #1023627