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Review Keywords Analysis

  1. Canada
  2. Best Solar Panel Companies
  3. Solar Panel Companies in Ontario
  4. Ottawa
  5. Solar Panel Cost Calculator
1 · Your home
2 · Roof & goal
3 · Your price
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Solar Panel Cost Calculator Ottawa, ON

See what a solar system costs installed in Ottawa, sized from your power bill. Free, instant, no sign-up.

Updated · installer rankings recalculated

Take the middle of a winter and a summer bill if yours changes a lot.

Prices, sunshine and rebates are for this location.

An estimate, not a quote. Based on $2.42–$3.05 per watt installed in Ontario (CAD) and 1,199 kWh per kW a year in Ottawa. Installers confirm the final price after a roof check.

Top-rated solar panel companies in Ottawa

Ranked by TrustAnalytica from verified reviews · see the full Top 10 list →

1

Kajk Constructors Inc I Solar Energy & Green Retrofits Contractor

Kajk Constructors offers residential, commercial, and industrial solar panel installations along with storage and maintenance solutions. Customers appreciate the team’s professionalism, clear communication, and affordable pricing. The installers keep clients informed throughout the process, making it easier to transition to solar energy.

Services & Prices
Residential Solar Panel Installation $10000 - $20000
Commercial Solar Panel Installation $20000 - $50000
Off-Grid Solar System Installation $15000 - $30000
Regular Maintenance Check $100 - $300
View Profile
(613) 869-8254
Closed Now
46 Grenfell Crescent B, Ottawa, ON K2G 0G4, Canada
General Services
Solar Installation
2

Quadra Power Inc. | Solar Power You Can Trust

Quadra Power Inc. specializes in solar plant construction and development, backed by a team with over 200 MW of direct solar project experience since 2007. They offer design, installation, and management of photovoltaic systems, with customers appreciating their knowledgeable, responsive team and timely project delivery, though some note occasional communication hiccups.

Services & Prices
Residential Solar Panel Installation $8000 - $15000
Commercial Solar Panel Installation $20000 - $50000
Solar Panel Array Re-installation $2000 - $5000
Routine Inspection $100 - $150
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(888) 782-3721
Closed Now
1730 St. Laurent Blvd Suite 800, Ottawa, ON K1G 3Y7, Canada
General Services
Solar Panel Installation
3

Ottawa Solar Power Inc

Holding the only A+ BBB rating for solar installations in Ottawa, Ottawa Solar Power brings over 25 years of combined experience in designing and managing solar systems. The team works with residential, commercial, and institutional clients, guiding projects from feasibility to commissioning. While many appreciate their knowledgeable and patient approach, some note occasional delays in… more...

Holding the only A+ BBB rating for solar installations in Ottawa, Ottawa Solar Power brings over 25 years of combined experience in designing and managing solar systems. The team works with residential, commercial, and institutional clients, guiding projects from feasibility to commissioning. While many appreciate their knowledgeable and patient approach, some note occasional delays in communication.

Services & Prices
Residential Solar Panel Installation $5000 - $20000
Off-Grid Solar System Installation $8000 - $30000
Rooftop Solar Panel Installation $6000 - $25000
Annual Maintenance Check $100 - $300
View Profile
(613) 728-2412
Closed Now
Spencer St, Ottawa, ON K1Z 5A2, Canada
General Services
Solar Panel Installation
4

Execon Roofing and Solar

Execon Roofing and Solar specializes in solar development with over a decade of experience installing more than 25,000 panels and steel roofing across Eastern Ontario. Their team handles everything from design to installation, often navigating government programs and regulations. Customers appreciate their thoroughness and professionalism, though some note communication could feel a bit formal at… more...

Execon Roofing and Solar specializes in solar development with over a decade of experience installing more than 25,000 panels and steel roofing across Eastern Ontario. Their team handles everything from design to installation, often navigating government programs and regulations. Customers appreciate their thoroughness and professionalism, though some note communication could feel a bit formal at times.

Services & Prices
Shingle Replacement $3000 - $5000
Metal Roof Installation $8000 - $12000
Roof Inspection $200 - $400
Complete Installation $15000 - $25000
View Profile
(613) 209-9871
Closed Now
2951 Birchgrove Rd, Ottawa, ON K0A 3E0, Canada
General Services
Roofing
5

EnerGlad Renewables

EnerGlad Renewables specializes in low-cost, efficient photovoltaic operations and maintenance, managing over 5MW of solar assets in Eastern Ontario. The team handles repairs, inspections, and warranty claims, with customers appreciating their helpful, knowledgeable approach and prompt response. Some note limited parts availability but value the straightforward advice and service.

Services & Prices
Rooftop Installation $5000 - $10000
Groundmount Installation $8000 - $15000
Residential System Installation $7000 - $12000
Broken Panel Replacement $200 - $500
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(819) 921-8265
Closed Now
234 Rideau St, Ottawa, ON K1N 0A9, Canada
General Services
Solar Panel Installation
Where they are 6 on the map Click a pin for the profile and directions
6

RealPart Canada

RealPart Canada is committed to the sustainability of energy by making viable, economically feasible projects a reality. Partnering with international supply companies, we use the best components and the most durable parts. This allows us to implement the most recent advancements in electrical systems, panels and substations for state-of-the art infrastructure projects. RealPart has installed… more...

RealPart Canada is committed to the sustainability of energy by making viable, economically feasible projects a reality. Partnering with international supply companies, we use the best components and the most durable parts. This allows us to implement the most recent advancements in electrical systems, panels and substations for state-of-the art infrastructure projects. RealPart has installed thousands of solar panels and knows the best way to make it affordable. RealPart makes meaningful improvements to existing, isolated grids. We adhere strictly to all regulations, and are focused on reliability and safety. All site issues are addressed, best practices implemented and methodologies used to make solar projects a reality. RealPart RealPart Canada, a developer and manufacturer of complete solar systems, has extensive connections to solar energy specialists and financial experts. We also have access to global solar product suppliers and financing sources. Solar services RealPart Canada is committed to the sustainability of energy by providing services in solar design, construction and planning.

View Profile
(514) 892-0004
Closed Now
116 Albert St #300, Ottawa, ON K1P 5G3, Canada
Ottawa Solar Panel Companies stats: 6 businesses compared side by side · updated
# Business Rating Reviews Starting price Phone Website
1 Kajk Constructors Inc I Solar Energy & Green Retrofits Contractor 5.0 24 $50 (613) 869-8254 Visit
2 Quadra Power Inc. | Solar Power You Can Trust 4.7 21 $20 (888) 782-3721 Visit
3 Ottawa Solar Power Inc 3.5 17 $50 (613) 728-2412 Visit
4 Execon Roofing and Solar 4.8 12 $100 (613) 209-9871 Visit
5 EnerGlad Renewables 5.0 6 $100 (819) 921-8265 Visit
6 RealPart Canada 5.0 2 — (514) 892-0004 Visit

How this Ottawa solar cost calculator works

This calculator sizes a solar system from your electricity use. Your monthly bill, divided by the average Ontario electricity price, gives your yearly use; Ottawa's sunshine (1,199 kWh per kW of panels a year) then gives the system size that covers it, adjusted for roof direction and shade. The installed price is that size multiplied by the price per watt homeowners in Ontario pay installers. Payback compares that price with what the panels save at Ontario power prices, assuming prices rise 3% a year.

Ontario numbers this calculator uses

Installed price
$2.42–$3.05 per watt in Ontario (CAD) (typical $2.74), before rebates. A typical 6 kW home system costs $14,500–$18,300.
Sunshine
1,199 kWh of electricity per kW of panels a year in Ottawa.
Electricity price
About 15¢ per kWh, the average residential price in Ontario.
Selling power back
Ontario net metering credits exported power for the energy portion of your bill only, not delivery, and credits expire after 12 months.
Rebates and tax credits
The Home Renovation Savings Program pays $1,000 per kW, up to $5,000 or half the cost, for systems that power your home without net metering. Battery rebates are also available. There is no federal solar grant or loan open to homeowners in 2026: the Canada Greener Homes Grant closed to new applicants in 2024 and the Greener Homes Loan closed on October 1, 2025.

An estimate, not a quote. Roof size and pitch, shading, equipment, permits and the installer all change the final price; installers confirm it after a site visit. Sources: EnergyHub provincial installed-cost data, Natural Resources Canada photovoltaic potential, Hydro-Québec Comparison of Electricity Prices (2025), provincial utility and program pages.

Frequently asked questions

6 questions
How many solar panels do I need for my home?
A typical 6 kW system in Ottawa needs around 15-20 panels, depending on panel wattage and roof direction.
Are solar panels worth it in Ontario?
With Ontario's electricity prices at about 15 cents per kWh, solar panels can reduce bills significantly, but check payback times.
How does roof direction affect solar panel output?
South-facing roofs are optimal; east or west need 15% more panels. North-facing roofs are usually not viable.
Can I sell power back to the grid in Ontario?
Yes, Ontario's net metering credits the energy portion of your bill for exported power, with credits expiring after 12 months.
How much electricity does an electric car add to my home use?
Charging an electric car at home adds about 2,700 kWh per year, based on 15,000 km of driving.
How accurate is the solar panel cost estimate?
The calculator estimates costs based on local installation prices, home size, and energy usage, providing a general guide.