Solar & Battery Installation in Ontario, CA

Yes. OC Solar serves Ontario 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.

Ontario 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 Ontario, 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 Ontario 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 Ontario 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 Ontario 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 Ontario, 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.

Residential solar permits in Ontario are issued by the City of Ontario's Building Department, and your interconnection is processed through Southern California Edison once the city signs off. If you live in an HOA-governed community such as Ontario Ranch, you may also need architectural-committee approval before installation; California law limits how much an HOA can restrict solar, but communities can still set reasonable rules on placement and appearance, so we handle both the city permit and any HOA submittal for you.