Solar Installers in Ottawa, ON
Compare 22+ vetted Ottawa solar companies side by side, read real customer reviews, and get your free solar quote for your home. A typical 7.5 kW system runs about $21,870 installed and pays back in roughly 18.8 years.
Top 22 Installers in Ottawa
Ranked by verified reviews and local performance data.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Home improvement chain for appliances & gardening supplies, plus tools & hardware.
Certified solar installation professionals offering competitive pricing and verified workmanship.
Solar Potential & Climate in Ottawa
Ottawa averages 1,210 kWh per kW installed per year — slightly better than Toronto thanks to drier, clearer winters. December-February can see week-long cold snaps where daytime temperatures stay below -20°C; panel efficiency rises in cold weather (NMC chemistry drops output below -10°C only on batteries, not solar panels themselves). Ottawa snowbelt accumulation is heavier than Toronto so most installers push panel tilt to 35-40° instead of 30° — the extra slope moves snow faster and sacrifices only ~3% of annual production. Spring and fall are the peak production windows; summer humidity and heat domes reduce output 5-10% on 30°C+ days.
Utility Interconnection & Net Metering
Hydro Ottawa handles distribution and net metering for the city proper; rural areas east and west of Ottawa fall under Hydro One. Residential rates are OEB-regulated RPP Time-of-Use at the same tariffs as Toronto Hydro, but delivery charges run slightly lower (~3.2¢/kWh vs 3.8¢). Hydro Ottawa pioneered Virtual Net Metering for multi-unit buildings in Ontario and remains the most receptive utility for condo and townhouse-complex solar — if you own a condo, Hydro Ottawa is the one Ontario utility worth asking about shared solar arrays. Net metering credits roll 12 months and expire, same as the rest of Ontario.
Local Solar Incentives & Grants
Federal: same as Toronto — 30% Clean Tech ITC applies to incorporated farms + commercial, not residential. Municipal: Ottawa's Rideau Neighbourhood Retrofit Financing is a pilot PACE program for parts of the city — covers home energy retrofits including solar, 20-year term, prime minus 0.5%. Not available city-wide yet but worth asking about if your postal code starts with K1N, K1S, or K2P. The Canada Greener Homes Loan closed to new applicants Oct 1 2025. Hydro Ottawa doesn't offer a direct solar rebate but their EV-plus-solar ULO rate migration is one of the fastest Ontario payback paths for homes planning both.
What a solar install actually costs in Ottawa
A typical 8 kW Ottawa install runs $22,500-$25,500 — slightly below Toronto thanks to a competitive local installer market. 10 kW systems land $26,000-$30,000.
Local permit office + typical timeline
City of Ottawa building permit + ESA electrical permit required. Timeline: 2-3 weeks typical for a straightforward residential install, longer in Rockcliffe Park or other heritage districts.
Installer Map — Ottawa
We've mapped every certified installer serving Ottawa and the surrounding area. Darker clusters indicate higher competition and potentially better pricing.
How Much Do Solar Panels Cost in Ottawa?
Prices below reflect the Ontario average of $2.92/W installed for a Tier 1 panel-plus-string-inverter build, 500 W panels, professional roof mount. Actual quotes vary with roof complexity, electrical panel upgrades, and whether you add a battery. The percentages show how much of a typical 9,000 kWh/yr Canadian household bill each system covers.
| System Size | Installed Cost | Yearly Savings | Payback |
|---|---|---|---|
5 kW Small home / condo, low bill under $100/mo | $14,580 | $776 | 18.8 yrs |
8 kW Typical 3-bed home, bill $100–$180/mo | $23,328 | $1,241 | 18.8 yrs |
10 kW Larger home, gas heat, bill $180–$250/mo | $29,160 | $1,551 | 18.8 yrs |
12 kW Big home with a pool or hot tub, $250+/mo | $34,992 | $1,861 | 18.8 yrs |
15 kW EV + heat pump household, or net-zero target | $43,740 | $2,327 | 18.8 yrs |
How these numbers are calculated: System production uses PVGIS-modelled irradiance for Ottawa (1,200 kWh per kW installed per year). Savings assume 65% self-consumption at 14.5¢/kWh retail and 10.0¢/kWh for exports back to the grid. Payback is simple (no rate inflation) — over the 25-year system life at 3% annual rate inflation, real savings on a 7.5 kW system total roughly $39,648.
Solar Rebates for Ottawa Homeowners
Ontario homeowners can typically stack federal, provincial, and municipal programs. Below are the current programs we track — always confirm with your installer that funding is still active when you sign a contract, since program budgets often run out mid-year.
Toronto HELP Program
Toronto homeowners can access low-interest financing for solar panels and pay it back over time through their property tax bill.
Clean Energy Improvement Program (CEIP)
Property Assessed Clean Energy (PACE) style financing available in select Ontario municipalities, linking the loan to the property, not the owner.
Top solar incentives in Ontario
View all →Save on Energy Retrofit Program — Solar PV Incentives (IESO)
Max: Micro-gen (≤10kW): $1,000/kW-DC. Small/medium (>10kW–1MW-AC): $770/kW-AC. Above 1,000kW-AC capped at 1,000kW-AC and 50% of costs. Must complete within 24 months of pre-approval.
Commercial, industrial, institutional, behind-the-meter, rooftop-mounted. Farm eligibility not stated.
Agricultural Stewardship Initiative (OSCIA, Sustainable CAP Ontario) — Energy Categories
Max: Basic Energy Assessment: 50% up to $10,000. Detailed Audit: 50% up to $20,000. Efficiency Improvements: 35% up to $35,000. Larger-Scale Improvements: 35% up to $90,000. Whether solar PV itself qualifies is unconfirmed.
Farm business registration number (or exemption) + verified 4th/5th Edition Environmental Farm Plan.
Toronto Home Energy Loan Program (HELP)
Max: Up to $125,000 or 10% of CVA, whichever less (incl. interest + 2% admin charge). Solar = 20-yr term. Rates to Jun 30 2026: 3.46% (5yr) to 4.86% (20yr).
Residential only — detached/semi/row/duplex/triplex, low-rise up to 3 storeys/6 units, postal code starting M. Not commercial or farm.
Toronto Energy Retrofit Loan (ERL) Program
Max: Financing up to 100% of project costs, limits via business case assessment. Fixed rate = City's cost of borrowing; up to 30-yr repayment; up to 1 yr interest/payment-free. Requires min 60% GHG reduction by 2040 plan.
Commercial, retail, industrial; multi-family residential; condo common areas; social housing; hospitals/LTC; schools/colleges/universities; not-for-profits; hospitality. Farms not applicable in Toronto.
Other Cities in Ontario
Comparing quotes across nearby cities can be worthwhile — installers often serve a 60–100 km radius and pricing can vary by 10–15%.
Solar FAQs for Ottawa
Everything you need to know about purchasing residential solar in Ottawa.
QHow much do solar panels cost in Ottawa?
A right-sized system for the typical Ottawa home — about 7.5 kW — costs roughly $21,870 installed before any rebates. Smaller 5 kW setups run closer to $14,580 and larger 12 kW systems land near $34,992. Final pricing depends on roof complexity, electrical panel condition, and whether you add a battery.
QWhat's the payback period for solar in Ottawa?
At Hydro One / Toronto Hydro's current residential rate of about 14.5¢/kWh, a 7.5 kW system pays itself back in roughly 18.8 years. After that, you're generating free electricity for another 15–20 years on the same equipment.
QAre there rebates or tax credits for solar in Ottawa?
Ontario homeowners can stack any provincial or municipal incentives on top of the federal picture. Programs change year to year, so we list what's currently active on our Ontario rebate page — always confirm with your installer that the incentive is still funded when you sign.
QDo solar panels work through Ottawa winters?
Yes — and better than most people expect. Panels convert light, not heat, so cold days with clear skies are among the best producers of the year. Snow slides off tilted panels quickly, and the surrounding snowpack actually reflects extra sunlight back onto the array (called the albedo effect). Winter months produce less than summer, but net metering credits from June–August cover the shortfall.
QHow long does a solar installation take in Ottawa?
The physical install is usually one to two days on the roof. From signed contract to fully commissioned and net-metered, expect 4 to 10 weeks — most of that is permit review, Hydro One / Toronto Hydro's interconnection paperwork, and the final safety inspection.
QDo I need to replace my roof before installing solar in Ottawa?
If your asphalt shingles are 15+ years old or nearing end of life, do the roof first. Removing and reinstalling panels later costs $2,000–$4,000, so it's cheaper to align both projects. If your roof has 10+ good years left, you're fine to proceed — most solar installers will inspect the deck before signing off.
QShould I add a battery to my Ottawa solar system?
Batteries make sense in two cases: you want backup power during outages, or Hydro One / Toronto Hydro's export rate is low enough that storing your own solar is more valuable than selling it back. In Ontario, the export rate is about 10.0¢/kWh vs the 14.5¢/kWh you pay for grid power — the gap tells you whether a battery pencils out.
QWhat size solar system do I need in Ottawa?
Match system size to your annual kWh usage. Look at 12 months of Hydro One / Toronto Hydro bills, add them up, then divide by 1200 (kWh per kW installed in Ontario). A typical Ottawa home lands at 7.5 kW. Add 1–2 kW if you're planning an EV or heat pump.
Ready to Go Solar in Ottawa?
Get your free solar quote — routed to a vetted specialist. Two-minute wizard.
Get My Free Quote