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.
7+ years across SoCal
Hundreds of installs in 40+ cities — we know SCE, your permit office, and local roofs.
Owner signs off on every design
Tim personally reviews your layout and equipment before anything is ordered.
4.9★ from 128+ homeowners
25-year panel warranty and a 10-year workmanship guarantee on every install.
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.
* Ballpark estimate. Actual production depends on roof pitch, orientation, shading, and panel choice.
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
Tim 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 128+ Southern California homeowners.
Tim and his team were transparent from the first call. We got three quotes — Helios was the only one that itemized everything. The install was clean, on time, and the Powerwall has already paid for itself in peace of mind during the last PSPS event.
We're in the High Fire Threat District and the outages were getting brutal. Helios designed a system around our specific backup needs (fridge, internet, well pump, A/C). When the next PSPS hit, we didn't even notice until our neighbors complained.
I interviewed five solar companies. Helios was the only one that pulled my actual SCE usage data instead of guessing. The savings projection they gave me has been within 5% of reality every month since.
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.
Nearby cities we serve
Get a transparent Ontario quote.
Free home assessment, no pressure. Includes panel layout, monthly savings projection, payback period, and every line-item cost.