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

San Bernardino County · Solar, batteries & service
Solar & Battery Installation in Rialto, CA
Rialto sits in the heart of the San Bernardino Valley, an Inland Empire city where long, hot summers and abundant sun make rooftop solar work hard year-round. We design systems here for Southern California Edison territory and pull permits through the City of Rialto, which participates in SolarAPP+ for streamlined residential solar and battery approvals.
Your home. Your numbers. Your pace.
See what solar could look like on your Rialto home.
You shouldn't have to sit through a sales presentation to see a design and a price. Build your instant quote online, then use a site audit to check the details that a roof model can't see.
Get My Instant Solar Quote →No sales call required. Prefer a person? Call our team.
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Explore your design and estimated price
Enter your address and electricity bill. Compare a solar design and battery options around your home, not a generic package.
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Choose an available site audit
Eligible Southern California addresses can book online. We inspect the roof, electrical equipment and installation conditions to verify the proposed scope.
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Review the findings before deciding
Understand the confirmed scope, any pricing changes and the next agreement step. Our sales and customer-service teams are available when you want help.

What going solar looks like in Rialto
Rialto homes are served by Southern California Edison (SCE), and permits run through City of Rialto Building & Safety Department. We manage both for you. For new solar on SCE's NEM 3.0 Solar Billing Plan, storing daytime solar can reduce evening grid purchases. We design around your actual usage and rate plan, and check any existing NEM agreement before adding panels or storage.
See how solar works for SCE customers →
- Permits handled through City of Rialto Building & Safety Department
- Southern California Edison (SCE) interconnection & PTO managed end-to-end
- Custom, roof-first design for your home
- Solar, battery storage and existing-system support
Local to Rialto
Solar designed around Rialto
We design and install across Rialto — including Las Colinas, El Rancho Verde, Renaissance, North Rialto, and Downtown Rialto.
Climate & energy use
Rialto lies directly below the Cajon Pass, one of the Inland Empire communities that bears the brunt of Santa Ana wind events, with advisories commonly bringing 35-45 mph winds and 50+ mph gusts. We spec attachment layouts and racking for wind uplift accordingly. Summers are hot and dry with minimal marine-layer influence, so production stays strong while air-conditioning drives some of the region's biggest summer bills.
Roofs & housing stock
Rialto's housing stock is mostly single-family detached homes spanning two eras: postwar ranch-style tracts from the 1950s-60s in central and south Rialto, typically with composition-shingle roofs that take standard flashed penetrations, and newer stucco homes in north Rialto (Las Colinas, Renaissance) with concrete tile roofs that call for tile hooks or comp-out sections to mount cleanly.
HOA & design review
Most of Rialto's established neighborhoods have no HOA, so approval is usually just city permitting. Newer gated communities in north Rialto — notably Renaissance, the Lewis-Hillwood master-planned community — do have HOAs with architectural review; California's Solar Rights Act limits them to reasonable conditions, and we handle the paperwork where it applies.
Already have solar?
Add, repair, or finish a solar project in Rialto
OC Solar works on existing systems in Rialto—including equipment installed by another company. We assess panel and battery additions, diagnose failures, and review projects an installer left unfinished.
For an existing Rialto system, we compare how much solar you use during the day with what you buy from the grid later, then check whether compatible storage addresses the gap. If your tile roof needs work, ask us to review panel removal, tile condition, flashing and reinstallation together before the roofing schedule is set.
Rialto by the numbers
10
projects & service calls in Rialto
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.
Compare the complete project
What a good Rialto solar quote should answer
A panel count and a monthly payment aren't enough. Bring a recent bill, any existing solar plans, and your priorities for backup power. These are the details worth comparing before choosing an installer.
For Rialto, start with Southern California Edison (SCE) and confirm that City of Rialto Building & Safety Department is the correct permitting authority for your property. A mailing city alone is not enough to verify jurisdiction.
Compare an existing solar quote →- How much energy will it make—and when?
- Compare annual production in kWh, the usage history behind the design, shading assumptions and any future EV or cooling load. System size in kW alone does not tell you how much of your bill it can cover.
- What will the battery actually back up?
- Ask which circuits are included, the usable storage, the output needed to start larger appliances and the assumptions behind runtime. Bill savings and whole-home backup are different design goals.
- What is included in the final price?
- Match equipment models, roof work, electrical upgrades, permits, interconnection, financing terms and exclusions. Make sure any site-audit changes are explained before signing.
- Who is accountable after installation?
- Separate manufacturer coverage from the installer's workmanship terms. Know how monitoring, service requests and equipment faults will be handled—and verify the contractor's license and reviews.
Check the local rules at the source
Program references checked September 2026. Your existing tariff and any community-choice generation provider may change the comparison; current utility terms control.
Rialto savings
See your Rialto solar estimate
Start with your address and bill to explore a roof-modeled design and estimated pricing. No sales call required; the site audit verifies installation details before pricing is confirmed.
We also serve nearby
See our work
Browse real Southern California installations and verified homeowner reviews.
What we install
Our services in Rialto
Why Rialto 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★ rating462 reviews
- Google4.8★ rating400+ reviews
- EnergySage5.0★ rating25 reviews
- CSLBLicense #1023627Licensed · Bonded · Insured
Team partnership
Rialto solar FAQ
Common questions in Rialto
Yes. OC Solar serves Rialto in San Bernardino County with custom solar panels, battery storage and Tesla Solar Roof, plus assessment of existing-system upgrades, repairs and unfinished projects. We confirm the property's address, equipment and project scope before scheduling the work.
Rialto is served by Southern California Edison (SCE). We handle interconnection and Permission to Operate (PTO) with them end-to-end so you don't have to.
Yes. We confirm the property's permitting authority, prepare the solar and battery permit package for City of Rialto Building & Safety Department, and coordinate inspection and utility interconnection. HOA or historic-design review may be a separate step where it applies. Permit approval and utility Permission to Operate are different milestones; neither is guaranteed by an online estimate or audit booking.
For new solar on SCE's NEM 3.0 Solar Billing Plan, a battery can improve savings by storing daytime solar for use during expensive evening hours. If you already have solar, we check your existing NEM agreement before recommending an expansion. A battery configured for backup can also power selected home circuits during an outage, within its capacity.
There's no honest single Rialto price — cost is driven by your system size (kW), your roof's layout and condition, the equipment you choose, and any electrical work like a main-panel upgrade. Your exposure to Southern California Edison (SCE) rates and whether you pair a battery under your current NEM or Solar Billing Plan drive the value side. See our guide to California solar cost by system size for what moves the number, use our savings calculator to model your bill, and we'll price your actual roof with a free, itemized estimate.
Yes. Start with your address and electricity bill at ocsolar.com to explore a roof-modeled design and estimated pricing without a sales call. Eligible Southern California addresses can book an available site-audit appointment online. The audit checks the roof, electrical equipment and installation conditions before pricing is confirmed. If your address or project needs an individual review, our team can help; you do not have to commit to an installation to request an estimate.
An online model cannot inspect roof condition, concealed wiring, the main electrical panel or the final battery location. Roof repairs, electrical upgrades, access constraints or a change to the equipment and backup scope can affect the final price. Ask for an itemized scope that identifies any changes from the online estimate, the equipment models, permit and interconnection responsibilities, and exclusions before you decide. We check the requirements for City of Rialto Building & Safety Department and the utility serving your property as part of that review.
Yes. We review battery additions and panel expansions, including systems installed by another company. For your Rialto property, we check the existing inverter, electrical panel, usable roof space, system ownership and utility agreement before recommending equipment. A battery retrofit and a panel expansion can have different interconnection implications; we do not assume adding equipment preserves an existing NEM tariff. Bring the original plans or equipment details and a recent bill from the provider serving your address.
Yes. OC Solar assesses solar repairs and unfinished projects in Rialto, including systems whose installer closed or stopped responding. Share the equipment details, original contract, permit status and any inspection or utility notices so we can identify what remains. We confirm compatibility, access, documentation and the work we can take on before quoting. Taking over service does not automatically transfer the previous installer's workmanship warranty or make every manufacturer claim eligible.
The City of Rialto Building & Safety Department is the permitting authority, and the city is integrated with SolarAPP+ for electronic review of residential solar and solar-plus-battery projects — the contractor submits the design through SolarAPP+, then finalizes the permit through the city's Online Permitting Center. Main panel upgrades require a separate city permit, the city issues only one active solar permit per property at a time, and interconnection goes through Southern California Edison. We manage the full process for you.
Want exact numbers for your home? Get a free, itemized estimate.
Keep researching
Solar research for Rialto 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.

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Or call 949-427-8817 to refer someone. Terms apply.
Build your solar estimate in Rialto
Design it online and compare modeled pricing—no sales call required. Eligible Southern California addresses can also book a free site audit. Prefer help? Our local team is available.
Already a customer? Refer a friend & get $500 · See all OC Solar reviews
Licensed, Bonded & Insured · CSLB #1023627