Short answer
To compare solar quotes in Canada, convert each to cost per watt, check that the production estimate fits typical Canadian yields, and compare equipment, warranties and financing terms line by line. Walk away from any company that pressures you to sign the same day or promises savings that look too good.
Key takeaways
- Divide the price by system size in watts to compare quotes fairly.
- Typical installed cost runs $2.40 to $3.30 per watt.
- Production should be roughly 1,000 to 1,350 kWh per kW per year.
- Check product, performance and workmanship warranties separately.
- High-pressure sales and loan-first pitches are red flags.
Solar quotes in Canada can look very different from one another. One company quotes a total price, another a monthly payment, and a third leads with 25-year savings. To compare solar quotes fairly, put them all on the same footing. Look at cost per watt, expected production, the equipment, the warranties and how the deal is financed.
Get at least three quotes. Most homeowners who do this find a wide spread in price for similar systems. The steps below help you see which quotes are fair and spot red flags early.
Step 1: Compare cost per watt
Divide the total installed price, before rebates, by the system size in watts. An 8 kW system is 8,000 watts. If the price is $22,400, that is $2.80 per watt. Canadian residential systems typically cost $2.40 to $3.30 per watt installed. A quote well above that range needs a good reason, such as a complex roof or premium equipment. A quote far below it deserves a close look at the equipment and the installer.
Step 2: Check the production estimate
Every quote should state expected yearly production in kWh. Divide that by the system size in kW. In populated Canada, a well-placed system typically produces about 1,000 to 1,350 kWh per kW per year, with the Prairies at the high end.
- If a quote claims well above your region's range, ask how they calculated it.
- Ask whether the estimate accounts for your roof direction, tilt and shading.
- Ask whether it includes panel degradation of about 0.5% per year.
Then check the savings. Multiply production by your all-in electricity rate. If the quote assumes a much higher rate, or large yearly rate increases, its savings will look better than they should. Our solar calculator gives you an independent estimate, and our solar payback guide explains the math.
Step 3: Compare the equipment
- Panels. Brand, model, wattage and number of panels. Look up the spec sheet.
- Inverter type. String inverters cost less but may need replacing during the panels' life. Microinverters and optimizers handle partial shade better and often carry longer warranties.
- Racking and roof attachments. Ask how they seal roof penetrations and whether that affects your roof warranty.
- Monitoring. You should be able to see your system's output on a phone or computer.
Step 4: Read the warranties
| Warranty | What it covers | What to look for |
|---|---|---|
| Panel product | Defects in the panel itself | Typically 12 to 25 years depending on brand |
| Panel performance | Output staying above a set level | Usually 25 years, with output loss around 0.5% per year |
| Inverter | The inverter or microinverters | Ranges widely, from about 10 to 25 years |
| Workmanship | The installer's labour, wiring and roof work | Length in writing, and who honours it if the company closes |
| Roof penetration | Leaks caused by mounting | Clear coverage period and claim process |
Manufacturer warranties matter only if the manufacturer is still around. Workmanship warranties matter only if the installer is. Ask how long the company has operated in your province.
Step 5: Look closely at financing
Paying cash or using a low-rate line of credit usually gives the best value. If a quote leads with a loan, check the interest rate, the term, any dealer fees built into the price, and whether there is a penalty for paying early. A low monthly payment over a long term can cost far more than the system price. Also confirm who applies for rebates and what happens if a rebate is denied.
Red flags in solar quotes
| Red flag | Why it matters |
|---|---|
| Pressure to sign today for a special price | Fair prices do not expire in an hour |
| Claims your bill will drop to zero | Fixed monthly charges stay, and winter output is low |
| No written production estimate | You cannot check the savings claim |
| Production far above regional norms | Savings and payback are likely overstated |
| Rebates presented as guaranteed | Programs change, and approval is not automatic |
| Claims they are from the government or your utility | Programs do not sell solar door to door |
| Only a monthly payment, no total price | Hides the true cost and financing charges |
| No site visit or roof check | Shading and roof condition can change everything |
Questions to ask every installer
- Who does the installation, your crew or a subcontractor?
- Are you licensed and insured, and can I see proof?
- Will you handle permits, utility connection and rebate paperwork?
- Does my roof need work before installation?
- Can I speak with local customers from the past few years?
Our guide on questions to ask installers goes further, and the net metering guide helps you check export assumptions. When you are ready, you can request quotes from vetted local installers.
Frequently asked questions
What is a good price per watt for solar in Canada?
Installed residential solar typically costs $2.40 to $3.30 per watt before rebates. Roof complexity and equipment choice can move a quote within that range.
How many solar quotes should I get?
At least three. Comparing several quotes on cost per watt and production estimate is the easiest way to spot an overpriced or overstated offer.
How do I know if a solar production estimate is realistic?
Divide the yearly kWh by system size in kW. In populated Canada it should typically land between 1,000 and 1,350 kWh per kW per year.
Is it better to pay cash or finance solar panels?
Cash or a low-rate line of credit usually costs least. Check any solar loan for interest, dealer fees and early payment penalties before signing.
Want numbers for your own home?
Use the solar savings calculator with your province's prices and climate. It takes about two minutes.