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Ontario commercial solar

Commercial Solar in Ontario: The Rebate, the Credit and the Connection

Ontario businesses may combine the Retrofit rebate and federal Clean Technology credit, subject to program rules and eligible-cost adjustments. Compare scope and confirm utility requirements before requesting quotes.

Check rebates for your project

Enter your full address to begin a property check. An account is needed to continue the property plan; personalized rebate matching requires premium access. This does not apply for a rebate or request quotes.

  • Find relevant rebates and understand how to apply
  • Compare solar options
  • Compare installation quotes as installers respond
Solar panels on an Ontario commercial roof$770 per kW-AC rebate
Retrofit ratesEffective June 30, 2026
Retrofit rebate for systems over 10 kW-AC, up to 1 MW-AC
$770 / kW-AC
for systems up to 10 kW-DC
$1,000 / kW-DC
federal Clean Technology ITC; confirm combination rules
Up to 30%
when the Retrofit list is updated
Spring & fall

Compare solar options

Quick answer

Start with the scope that suits your property, then compare written proposals using the same assumptions. These are project options, not a catalogue of available models or a promise of eligibility.

Compare suitability and ask the same questions of each provider. Final design requires a site assessment.
OptionWhen to consider itWhat to request
Roof or ground mountCompare usable area, shade, roof condition and land access.Request layout, roof or foundation work, permits, electrical scope and interconnection conditions.
System size and inverterMatch generation and export assumptions to site use and the utility tariff.Compare kW-DC and kW-AC, annual production assumptions, inverter design and warranties.
Storage or off-grid designCompare backup needs and usable battery capacity; off-grid needs a separate load and autonomy design.Ask what stays powered, for how long, and whether controls, backup generation and service are included.

Before you hire: compare the full scope

Panel and inverter models, layout, production assumptions, roof/electrical work, interconnection and storage scope. Ask each provider to itemize equipment or materials, labour, extras, permits, exclusions, warranty and responsibility for rebate documents. Confirm eligible equipment, pre-approval and stacking with the program administrator before signing.

Budget separately: project cost → confirmed grant support → remaining cost. Any borrowing is repayable, with its own interest, fees and approval. Unconfirmed rebates are not awarded savings.

What Does the Save on Energy Retrofit Program Pay for Solar?

Quick answer

Systems up to 10 kW-DC earn $1,000 per kW-DC. Systems over 10 kW-AC earn $770 per kW-AC, with the incentive capped at 1 MW-AC. These are maximums: what you receive depends on program requirements and eligible costs. The list changes each spring and fall.

  • Small systems

    $1,000 per kW-DC for systems up to 10 kW-DC (microgeneration).

  • Small to medium

    $770 per kW-AC for systems over 10 kW-AC, up to 1 MW-AC.

  • Larger systems

    Systems over 1 MW-AC can apply, but the incentive is capped at 1 MW-AC.

  • Custom stream

    Complex projects can use the Custom stream instead, which pays by a different formula and is capped at 50% of eligible project costs. Ask the program which stream fits.

What Does My Local Utility Need to Confirm?

Quick answer

Your local distribution company (LDC) must confirm the system can connect to its grid. In some parts of Ontario the local grid can't host a new connection, so ask your LDC early, before you commit to a design or a rebate application.

  • Ask early

    Request the LDC's connection requirements and any capacity limits before final design.

  • Know your LDC

    Your LDC is the utility that sends your bill. Solenery identifies it from your address.

  • Technical and safety rules

    Your LDC sets technical, safety and inspection requirements. Building permits may also apply.

A Worked Example: 200 kW on an Ontario Warehouse

The Retrofit rebate and the federal credit on the same project, as an illustration.

200 kW rooftop system in Ontario

Illustrative project cost
Installed cost$400,000
Potential support, checked separately
  • Save on Energy Retrofit200 kW × $770 per kW-AC$154,000
  • Federal Clean Technology ITC30% × $260,000 of equipment$78,000

Separate illustrative amounts, not an approved combined saving. Confirm stacking, eligible-cost limits and any tax-credit basis adjustments before estimating the remaining cost. Financing is repayable and is not rebate support.

Illustrative: $2.00 per watt installed, equipment about 65% of cost, labour requirements met, credit calculated on the full equipment cost. Confirm with your accountant.

Checked against official pages · Sept 23, 2026

Ontario Programs for Business Solar

Confirm utility territory, municipal boundaries and audience eligibility. Where no municipal offer is listed, we have not verified an additional municipal rebate for this location. Program combinations need administrator confirmation; do not add maxima together.

Source: each program's official page (linked) · as of Sept 23, 2026. Amounts change often, so confirm on the official page before you apply.
ProgramProvinceForAmountStatus
Clean Technology Investment Tax CreditCanada (federal)Businesses

Taxable Canadian corporations

Refundable credit of up to 30% of eligible solar and battery equipment costs (20% if labour requirements aren't met). Up to 15% for equipment available for use in 2034Open

Open until Dec 31, 2034

Save on Energy Retrofit ProgramOntarioBusinesses

Ontario businesses. Your local utility must confirm the system can connect

$1,000 per kW-DC for systems up to 10 kW-DC; $770 per kW-AC for systems over 10 kW-AC, up to 1 MW-ACOpen

Open

What Ontario Pays for Extra Solar Power

Net metering credits carry forward and offset energy you use. Your local distributor sets the details and any size limit.

Source: each utility or regulator page (linked) · as of Oct 15, 2026. Terms change with rate cases, so confirm with your utility before you size a system.
Utility and programHow exports are creditedSystem size
Your local distribution company: Net metering (O. Reg. 541/05)Exports earn a credit that carries forward to later bills for up to 12 months. Credits offset energy used, not fixed monthly chargesSet by your local distributor and what the local grid can host

Find rebates, compare options and plan your next step

Start with public guidance and a property check. Confirm your property and choose upgrades before requesting quotes from installers serving your area. Availability varies; Solenery does not install equipment or decide government eligibility.

  1. 1

    Find relevant rebates

    Read public program information, then check your property. Confirm eligibility, pre-approval and required documents with the administrator before starting work. Entering an address does not submit an application.

  2. 2

    Compare solar options

    Use the comparison below and your property plan to discuss suitability. Compare the equipment and scope proposed by providers; this is not a live model catalogue.

  3. 3

    Choose upgrades, then request quotes

    Confirm your property and choose the work before requesting detailed quotes. Compare scope, equipment, exclusions and price as installers serving your area respond. Availability and response times vary.

Illustration of home upgrades including solar and a heat pump

Illustration: plan equipment and supporting work together

Should I Do an Energy Audit First?

Quick answer

An energy audit is a separate service from solar, and it is worth doing when you can still cut your load. A smaller load means a smaller system and a lower bill for the same savings.

Solenery's energy audit page explains what an audit covers and how to compare auditors.

What is Solenery?

A short explainer on how Solenery matches your rebates and helps you compare contractor quotes.

Ontario Commercial Solar Questions

Answers checked against government and official program pages.

Solenery helps you find relevant programs, understand how to apply and compare solar options. After property confirmation and upgrade selection, you can request installation quotes and compare them as installers respond; local availability varies.

Plan a quote request

Service guides, comparisons and program information on this page are public. Enter your full address to begin a property check. An account is needed to continue the property plan; personalized rebate matching requires premium access. This does not apply for a rebate or request quotes.

About personalized matching

The administrator decides eligibility and stacking. Confirm who submits each application—you or your provider—and obtain any required approval before work. Keep itemized quotes, eligible model evidence, invoices and receipts. Solenery does not automatically apply or reserve funding, and program maxima cannot simply be added together.

Review program conditions

Request the same scope from each provider: panel and inverter models, layout, production assumptions, roof/electrical work, interconnection and storage scope, plus labour, extras, permits, warranty, exclusions and who prepares rebate documents. Compare confirmed support separately from project cost and repayable loans.

Compare project options

Save on Energy's Retrofit program pays $1,000 per kW-DC for systems up to 10 kW-DC and $770 per kW-AC for systems over 10 kW-AC, up to 1 MW-AC. The amounts are maximums, and the list is updated each spring and fall.

Yes, but they interact: government assistance can reduce the cost the federal credit is calculated on. Confirm the combined value with your accountant.

How the federal credit works

It depends on system size, roof, equipment and installer, so Solenery doesn't publish a range. Our worked example assumes $2.00 per watt for illustration only. Get at least three quotes.

Ontario's net-metering regulation lets customers who generate renewable electricity for their own needs earn credits that carry forward up to 12 months. Your local distributor sets the technical requirements and any size limit.

Your local distribution company. The Retrofit program also asks you to confirm connection with your LDC, so contact it before you finalise the design.

Check your Ontario building's incentives

Begin with your full address, confirm your property and choose upgrades before requesting solar quotes. Compare equipment, scope and price as installers serving your area respond.

Check rebates for your project

Enter your full address to begin a property check. An account is needed to continue the property plan; personalized rebate matching requires premium access. This does not apply for a rebate or request quotes.

Cutaway illustration of a home with a heat pump and solar panels

Are you a commercial solar installer?

Projects come to you: owners request quotes after seeing their eligible incentives, net cost and payback. Browse projects for free and pay a commission only on the deals you close.

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Clean energy installer at work

How We Research This Page

Last updated: .

Every rebate amount, status and deadline on this page was read on the program's official page and is dated next to it. Program amounts and deadlines change. Use each dated source and confirm current terms with the administrator before you apply.

Facts and figures come from government departments, utilities and safety regulators, linked next to each figure and listed here. We don't publish price ranges: costs depend on your home, so we explain what drives them and let contractors quote.

Solenery is a Canadian clean energy platform connecting property owners with incentives and vetted professionals. It doesn't install equipment, issue rebates or submit government applications itself.

Sources