San Bernardino County
Solar installation in Ontario, CA
Custom-designed solar and battery systems for Ontario homeowners. Southern California Edison expertise, no high-pressure sales — just a transparent quote.
Solar installation in Ontario spans two very different cities under one name. Old Town Ontario holds historic homes with older roofs and mature trees, while south of the freeway the Ontario Ranch and New Model Colony developments are some of the fastest-growing tracts in the region — brand-new roofs built for solar. That split means no single Ontario quote fits every address. What is constant is the heat: inland summers run AC hard, and under SCE's NEM 3.0, which cut export credits roughly 75%, the system that pays here stores your midday production for the 4-9 PM evening peak rather than exporting it cheap. Helios pulls your real SCE usage, designs to your specific roof and shading, and the owner signs off before anything is ordered.
What solar looks like in Ontario.
Every market has different utility rules, sun resources, and structural realities. Here's what we factor in when designing for Ontario homes.
Inland Empire sun resources — among the highest in SoCal
Diverse housing stock — many homes well-suited to solar without tree shading issues
Hot summer climate makes solar+battery TOU optimization especially valuable
Why Ontario homeowners choose Helios.
We design and install across Ontario — from Ontario Ranch, New Model Colony, and Creekside, near Ontario Mills, Ontario International Airport, and the Toyota Arena. A diverse range from historic Old Town Ontario homes to the booming new Ontario Ranch and New Model Colony subdivisions south of the freeway.
8+ years across SoCal
500+ installs across 60+ cities — we know SCE, your permit office, and local roofs.
Owner signs off on every design
Taylor Crouse, our founder, personally reviews your layout and equipment before anything is ordered.
4.9★ from 152+ homeowners
25-year panel warranty and a 10-year workmanship guarantee on every install.
Ontario online solar permitting: automated, not over-the-counter waits
The City of Ontario has adopted an automated online permitting platform — run through Symbium — for residential roof-mounted solar systems and energy-storage systems under 38.4 kW, alongside detached single-family re-roof permits. Instead of standing in a plan-check line, an eligible code-compliant system can be permitted online, which compresses the bureaucratic part of the project to a handful of days.
This is Ontario's implementation of California's expedited-permitting mandate (AB 2188 and SB 379), which require cities to streamline and ideally automate residential solar permits. Helios handles the full submittal and pulls the permit, then files the SCE interconnection application. You see a finished design and a permit, not a stack of forms.
Two Ontarios: Old Town roofs vs. Ontario Ranch new builds
Ontario behaves like two cities on a solar map. North of the freeway, Old Town Ontario and the older established neighborhoods bring early- and mid-century homes — sometimes with aging composition roofs, mature shade trees, and tighter lots that call for careful shade analysis or a re-roof conversation before panels go on.
South of the freeway, Ontario Ranch and the New Model Colony are among the fastest-growing master-planned developments in Southern California, full of near-new roofs with clean orientations, concrete or Spanish-tile surfaces, and minimal shading — ideal, efficient installs. Many of these newer tracts also carry HOA architectural-review requirements for rooftop equipment, which we handle as part of the submittal. The point is that an honest Ontario quote depends entirely on which Ontario your address sits in, so we design to your specific roof rather than a citywide average.
High AC loads, NEM 3.0, and the 2026 incentive reality
Ontario's inland-valley climate delivers roughly 5.9 peak sun hours a day — strong production — but also baking summers that run AC hard from June through September, exactly when SCE's tiered rates are steepest. That combination of high output and high cooling demand is what makes a properly sized system pencil. Because Ontario is an SCE city under CPUC NEM 3.0, exports earn little, so the winning design stores midday solar and discharges it during the 4-9 PM peak.
On incentives, we are straight with you: the 30% federal residential tax credit expired December 31, 2025, so a homeowner buying a system outright in 2026 can no longer claim it. Our prepaid-lease financing instead captures the federal commercial credit and passes through roughly 30% up front. For batteries, SGIP still exists but its general-market residential budget is largely waitlisted in 2026, with real money concentrated in the income-qualified and medical/HFTD Equity tiers. We check what your address truly qualifies for.
Ontario's utility: Southern California Edison
How net metering works for you.
SCE operates under NEM 3.0 (effective April 2023), which cut export rates ~75%. A solar+battery system is essential for healthy ROI here.
Production estimate
A typical 8 kW system on a Ontario roof produces approximately 17,228 kWh per year given 5.9 peak sun hours per day. We'll model your exact roof, shade, and azimuth in your free assessment.
Inland-valley summers are long and hot, which means strong solar production and the kind of high A/C bills that solar offsets especially well.
* Ballpark estimate. Actual production depends on roof pitch, orientation, shading, and panel choice.
SoCal Solar Index · July 2026
Ontario ranks #30 of 64 Southern California cities for estimated year-1 solar savings — ~$3,400 on a standard 8 kW system at 34.5¢/kWh under SCE NEM 3.0.
Source: the SoCal Solar Index — free data on rates, permits, and solar economics for 64 SoCal cities (CC BY 4.0).
Our solar process in Ontario.
- 1
Free home assessment
We pull your SCE usage data and model your exact roof, shade, and azimuth — no guesswork, no obligation.
- 2
Custom design & transparent quote
Taylor designs your system and signs off on it personally. You see every line item — panels, inverter, mounting, labor, permitting — before you decide.
- 3
Permitting & install
We pull every Ontario permit, manage the inspection, and handle Southern California Edison interconnection. Most roofs are done in 1–2 days.
- 4
Powered on & monitored
Most systems are commissioned within 6–10 weeks of signing, with per-panel monitoring so you see exactly what your system produces.
Our promise: a transparent quote with every cost itemized, and a 10-year workmanship guarantee on every Ontario install.
What SoCal homeowners say.
Verified Google reviews — 4.9★ from 152+ Southern California homeowners.
Ontario solar questions, answered.
- How much does solar cost in Ontario?
- Most Ontario homes need a 6-11 kW system depending on whether it is an older Old Town house or a newer Ontario Ranch build — typically $18,000-$35,000 before financing incentives. Newer subdivisions keep installs efficient; older homes may need shade analysis. We size to your actual SCE usage and itemize every cost.
- How much can solar cut my summer AC bill in Ontario?
- Ontario's inland summers push cooling bills high, and SCE's tiered NEM 3.0 rates make July and August sting. A right-sized system offsets most of that AC load, and a paired battery lets you run cooling on stored solar through the expensive 4-9 PM peak window instead of paying top-tier evening rates.
- Do I need a battery for solar in Ontario under NEM 3.0?
- For most homes, yes. Because SCE NEM 3.0 pays little for exported power, a battery lets you self-consume your own midday solar during the costly evening peak — typically pulling payback from the 10-14 year solar-only range down to roughly 6-9 years. We model both paths against your real usage.
- How does the solar permit process work in Ontario?
- The City of Ontario uses an automated online permitting platform (run through Symbium) for residential roof-mounted solar and battery systems under 38.4 kW, so eligible projects can be permitted online without a long manual plan check. Helios prepares and submits everything and coordinates the SCE interconnection.
More services in Ontario
Nearby cities we serve
We install on every Ontario roof type
Tile, shingle, flat, metal or slate — mounting and flashing differ on each. See exactly how we keep your specific roof watertight.
Get a transparent Ontario quote.
Free home assessment, no pressure. Includes panel layout, monthly savings projection, payback period, and every line-item cost.