How many solar companies does SolarPanelFinder list in Mississauga?

Eighteen, more than any other area in the index. All 18 sit in the solar panel installation category, and 2 of them, Zeno Renewables - Mississauga and Solario, also sit in battery storage. None is filed under commercial solar, repair, roofing or solar electricians, so for those trades you would look at the category pages rather than the Mississauga page.

Why is the Mississauga average rating lower than the rest of the index?

The 4.03 figure is a plain average of 9 ratings, so each small record counts as much as a large one. Four of the 9 sit below 4 stars, including Silfab Solar Inc., a panel manufacturer at 3.2 on 41 reviews. The site's own score treats each company as if it started with 10 reviews at the index mean of 4.61. That moves a 2.3 on 3 reviews much further toward 4.61 than a 4.6 on 133.

Do I need a building permit for solar panels in Mississauga?

Yes. The City of Mississauga lists solar panels among the projects that need a building permit. Its cost page says a residential permit costs at least $244 and that the exact fee is worked out after the city prescreens the request. The city's permit list also says you still have to meet zoning rules. The electrical notification with the ESA is a separate filing.

Can Alectra Utilities pay me for the power my panels send to the grid?

No. Alectra's net metering answers say it cannot pay you for excess generation. Extra power becomes a credit against future electricity charges on your bill, and where Alectra bills water and sewage for a city, the credit cannot be used against those charges. Credits carried for 12 months in a row are brought to zero at the end of the twelfth month.

What the Index Shows About Mississauga's Solar Companies

Last updated September 17, 2026By The SolarPanelFinder Rooftop Desk

Mississauga holds more solar companies than any other area in the index, 18 of 161. Its 4.03 average looks weak, but it is a plain average of only 9 ratings. Two of those belong to a panel maker and a Samsung subsidiary. Read the list record by record before you judge it.

A two-storey red-brick suburban house with rooftop solar panels on a quiet Peel Region street, young maples on the boulevard and residential towers on the horizon — Illustration generated for this article. It is not a photograph of a real job and no company listed on this site appears in it.

How many solar companies does the index hold in Mississauga?

The index files 18 companies under Mississauga, the largest count of its 59 areas. Every one of the 18 sits in the solar panel installation category. Only 2, Zeno Renewables - Mississauga and Solario, also sit in the battery storage category. None of the 18 is filed under commercial solar, repair and maintenance, roofing or solar electricians.

Google's own business labels add detail. It calls 13 of the 18 a "Solar energy company" and 4 a "Solar energy system service". The last one, Solario, carries the label "Corporate office". All 18 records give a Mississauga street address, and the farthest sits 12.89 km from the point the site uses for the city. Of the 18, 9 carry a Google rating and the other 9 have none. These counts come from the site's August 2026 dataset of public Google records, and corrections go to hello@solarpanelfinder.ca.

Why is Mississauga's average rating only 4.03?

The figure is a simple average of 9 ratings, so a record with 3 reviews weighs as much as one with 133. Across the whole index, 90 companies are rated, their mean is 4.61 and only 9 of them sit below 4 stars. Four of those 9 are in Mississauga:

Silfab Solar Inc.: 3.2 stars on 41 reviews.
RESCo Energy Inc.: 3.4 stars on 5 reviews.
Solar Power Depot: 3.7 stars on 3 reviews.
Samsung Renewable Energy Inc: 2.3 stars on 3 reviews.

The 9 rated records hold 321 reviews, and each rating times its reviews, summed and divided by 321, comes to about 4.51. The median of the 9 ratings is 4.5. Two records carry most of the volume: mySolar has 4.6 stars on 133 reviews and Blue sky solar inc has 5.0 on 110. Together that is 243 of the 321 reviews.

One-star reviews explain part of the gap. Of the 321 reviews, 35 are one-star, and 18 of those 35 sit on Silfab's record. A rating says nothing about licences or insurance, and the site's methodology page says it does not check either.

Which Mississauga records are not installers?

At least 3 records describe businesses other than home installation on their own websites, and a fourth has no website to check. All 4 sit in the installation category and carry Google's "Solar energy company" label.

Silfab Solar Inc. says on its website that it uses automation in its "manufacturing process to deliver efficient, reliable, high-quality panels". It makes panels.
Samsung Renewable Energy Inc calls itself "one of the business subsidiaries of Samsung C&T Corporation in South Korea" on its website.
Silvercreek Solar Park links to a site about a ground-mounted solar farm "in Elgin County, Ontario". It is a generation project with no rating.
ReneSola Canada Ltd. has 5.0 stars on 1 review and no website on record, so the index cannot confirm what it does. The count below leaves it out for that reason.

Leave out Silfab, Samsung and ReneSola and 6 rated records remain. Their ratings average 4.3 on 276 reviews. That suggests part of the low headline figure comes from who filed a Google record in Mississauga, not only from how local installers are rated. Solario is a separate case. Its Google label is "Corporate office", and the index files it under installation and battery storage, so ask the company what it does.

Diagram of a stack of business cards being sorted into three bins labelled home installers, makers and projects, and check by hand — Sort an area's list by what each business does before you compare star ratings.

How many Mississauga companies can you reach online?

Eleven of the 18 have a website the site links, and 4 have no website on record. Fourteen records carry a website address. The site's link check on 26 August 2026 withheld 3 of them:

Crown Energy Consultancy LTD.: the domain does not resolve.
Lumi Energy: the server answers that the page is gone.
The Solar: the certificate is invalid or expired, so a browser refuses to open it.

The 4 with no website are ReneSola Canada Ltd., SUN TO SOLAR SYSTEMS, Xergy Energy and Sun4LifeSolar Inc. A dead link does not prove a company has closed, and the site keeps all of these listings.

Opening hours appear on 11 of the 18 records. Of those 11, 6 show Saturday hours and 3 show Sunday hours. Two records say "Open 24 hours" every day, Crown Energy Consultancy LTD. and The Solar, and those are 2 of the 3 websites the site cannot link. No record in the index holds an email address, and the live site prints no phone number on any listing. First contact starts from a company's own website where the site links one.

What do shared addresses and area filing tell you?

Two pairs of records give the same street address, which is worth asking about before you book two visits. The Solar and Zeno Renewables - Mississauga both list 375 Admiral Blvd #2. Voicelight Solar Energy Inc and Sun4LifeSolar Inc. both give addresses at 5800 Ambler Dr that include unit 210.

Names and filing can also mislead. Stardust Solar Etobicoke has an Etobicoke name but a Mississauga street address. The site files it on the Mississauga page, 8.56 km from the city point. A record named "Sunly Energy, Mississauga" has no street address and sits on the Brampton page instead, at 11.4 km. A business address is not a service area, so ask any company whether it works at your address.

What does the City of Mississauga ask for before panels go up?

The city lists "Solar panels" among the projects that need a building permit before installation. The page adds that you must still meet zoning rules.

The city's cost page says "for a residential property, a permit will cost a minimum of $244". An online request carries a $50 administrative fee, a deposit the city says "will be credited towards the total cost of your permit". The exact fee is calculated after the city prescreens the request, using its Building Permit Fee Schedule. The page names no solar fee, so ask your installer which fee its quote includes.

The same page gives its own review times. Prescreening "usually takes about 7 to 10 business days". A complete residential application's first review "may take" 10 business days, and incomplete applications are not held to those times.

The building permit covers the structure. The Electrical Safety Authority (ESA), Ontario's electrical safety regulator, says "having a building permit isn't the same as filing an electrical notification. You may need both." The ESA adds that the person doing the work, "you or a Licensed Electrical Contractor", should file before work starts. The site's guide to the paperwork behind a GTA solar install covers the three filings together.

How does Alectra Utilities connect a home system in Mississauga?

Alectra Utilities is the local electricity utility, and its company page lists Mississauga among the 17 communities it serves. It sets out a separate process for "Micro Generators", which it defines as 12 kilowatts (kW) or less. The steps run in this order:

A Preliminary Consultation Information Request, where Alectra outlines connection details and "the available capacity".
Form C, the Micro Generation Connection Application.
An Offer to Connect, which sets out requirements and construction costs. You pay the connection fees in it if you go ahead.
Design and build, then an application to the ESA for an electrical inspection.
A signed Commissioning Verification Form and a Connection Agreement.
A bi-directional meter, which Alectra installs after the ESA sends its "Connection Authorization".

Alectra also says "certain feeders", the local power lines that supply its territory, are restricted for new generation because of short circuit limits. It updates that list every three months or as required. Ask your installer to check your street before you pay for a design.

Net metering is Ontario's rule for crediting the power a home sends to the grid. Under it, Alectra says it "cannot pay you for excess generation". Extra power becomes a credit against future electricity charges. Program details sit on the site's incentives page.

Flow diagram of the utility connection steps for a small home solar system: early request, application, offer to connect, build and inspect, agreement, two-way meter — The utility's small-system route runs from an early request to a new two-way meter, with the electrical inspection before the meter.

How do you turn the 18 records into a short list?

Start with the records that describe home installation work, then move every open question into writing.

Set aside the non-installers. Leave out Silfab, Samsung Renewable Energy and Silvercreek Solar Park unless you are buying panels or researching a project.
Read review counts before stars. A 5.0 on 1 review and a 3.7 on 3 reviews tell you little either way.
Find the unlinked websites yourself. For Crown Energy Consultancy LTD., Lumi Energy and The Solar, search for a current site before you share details.
Ask about shared addresses. If two records give one address, ask each company how they are connected.
Ask who files what. Get in writing who applies for the city permit, who files the ESA notification and who sends Alectra's forms.

Frequently asked questions

How many solar companies does SolarPanelFinder list in Mississauga?: Eighteen, more than any other area in the index. All 18 sit in the solar panel installation category, and 2 of them, Zeno Renewables - Mississauga and Solario, also sit in battery storage. None is filed under commercial solar, repair, roofing or solar electricians, so for those trades you would look at the category pages rather than the Mississauga page.
Why is the Mississauga average rating lower than the rest of the index?: The 4.03 figure is a plain average of 9 ratings, so each small record counts as much as a large one. Four of the 9 sit below 4 stars, including Silfab Solar Inc., a panel manufacturer at 3.2 on 41 reviews. The site's own score treats each company as if it started with 10 reviews at the index mean of 4.61. That moves a 2.3 on 3 reviews much further toward 4.61 than a 4.6 on 133.
Do I need a building permit for solar panels in Mississauga?: Yes. The City of Mississauga lists solar panels among the projects that need a building permit. Its cost page says a residential permit costs at least $244 and that the exact fee is worked out after the city prescreens the request. The city's permit list also says you still have to meet zoning rules. The electrical notification with the ESA is a separate filing.
Can Alectra Utilities pay me for the power my panels send to the grid?: No. Alectra's net metering answers say it cannot pay you for excess generation. Extra power becomes a credit against future electricity charges on your bill, and where Alectra bills water and sewage for a city, the credit cannot be used against those charges. Credits carried for 12 months in a row are brought to zero at the end of the twelfth month.