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Provinces / Ontario

Clean energy in Ontario

Ontario's nuclear-and-hydro backbone keeps its grid ~85% emission-free. With time-of-use pricing, net metering, and the country's largest housing stock, it's also Canada's biggest home-energy market.

Canada's biggest grid, going electric

The Ontario energy picture

Approximate figures from public federal and provincial energy profiles — every home and utility territory differs, so treat these as the starting map, not the destination.

~13¢typical residential rate per kWh (approx.)
≈1,170kWh produced per installed kW of solar, per year (approx.)
~34%of electricity from renewables (approx.)
Emission-free supply~85% incl. nuclear

Where Ontario's electricity comes from

Nuclear ~51%Hydro ~24%Natural gas ~15%Wind ~8%Solar ~1%Biomass ~1%
Selling power back: how net metering works here

Ontario's net-metering regulation credits surplus solar at your retail rate, with credits banked up to 12 months — a strong fit with time-of-use pricing.

Best bets

What works best in Ontario

Rooftop solar

Southern Ontario yields ~1,150–1,200 kWh/kW. The Home Renovation Savings Program now covers rooftop solar and batteries for self-consumption systems, and Toronto's HELP loans spread the cost over time.

EVs + smart charging

Charging overnight on off-peak ultra-low rates (and a clean grid) makes Ontario EV kilometres both cheap and low-carbon.

Heat pump switch

Over 60% of Ontario homes heat with gas — cold-climate heat pumps are the province's biggest untapped emissions cut.

Money on the table

Rebates & incentives for Ontario residents

Federal programs apply everywhere and usually stack with local ones. Program terms change — confirm details on the official page before applying, and or search by your exact address to add municipal programs.

OpenFederalTax incentiveWrite-offsStatus to confirm

Accelerated Capital Cost Allowance for Clean Energy Equipment (Classes 43.1/43.2)

Canada Revenue Agency — Faster tax write-offs for businesses investing in qualifying clean-energy equipment such as solar. Generally not available to homeowners for a principal residence.

Official program page ↗Last reviewed 2026-10
OpenFederalEVUp to $5,000

Electric Vehicle Affordability Program (EVAP)

Transport Canada — Point-of-sale incentive on a new electric or plug-in hybrid vehicle, applied by an enrolled dealer. Vehicles must be made in Canada or a free-trade partner country, and non-Canadian-made vehicles must cost $50,000 or less after discounts.

Official program page ↗Last reviewed 2026-10
OpenFederalTax rebateVariesStatus to confirm

GST/HST New Housing Rebate

Canada Revenue Agency — Recover part of the GST or federal share of HST paid on a newly built or substantially renovated home used as a primary residence.

Official program page ↗Last reviewed 2026-10
Coming soonFederalHeat pumpUp to $10,000

National Heat Pump Rebate

Government of Canada (Environment and Climate Change Canada) — A new federal rebate for homeowners who install an eligible heat pump. You apply online, with no energy audit needed. Approval is promised within 24 hours, and payment within five days of submitting receipts.

Official program page ↗Last reviewed 2026-10
OpenOntarioIncome-qualifiedFree

Energy Affordability Program (EAP)

Save on Energy (IESO) — Free energy-saving upgrades for income-eligible electricity customers. These can include insulation, draft-proofing, efficient appliances and a cold-climate heat pump for electrically heated homes. Oil-heated homes with above-ground tanks can also get a free heat pump, with tank removal included.

Official program page ↗Last reviewed 2026-10
OpenOntarioInsulationUp to $1,250Status to confirm

Home Renovation Savings: Attic Insulation

Enbridge Gas & Save on Energy (Government of Ontario) — A standalone rebate for topping up attic insulation, with no full energy assessment needed.

Official program page ↗Last reviewed 2026-10
OpenOntarioGeothermalUp to $12,000

Home Renovation Savings: Ground-Source Heat Pumps

Enbridge Gas & Save on Energy (Government of Ontario) — A rebate for installing a geothermal (ground-source) heat pump in an Ontario home. First-time installations only, and the unit must be on the NRCan qualified list.

Official program page ↗Last reviewed 2026-10
OpenOntarioWater heater$500

Home Renovation Savings: Heat Pump Water Heater

Enbridge Gas & Save on Energy (Government of Ontario) — A rebate for a heat pump water heater installed as part of an assessed home retrofit.

Official program page ↗Last reviewed 2026-10
OpenOntarioHeat pumpUp to $7,500

Home Renovation Savings: Heat Pumps

Enbridge Gas & Save on Energy (Government of Ontario) — A rebate for installing a qualifying air-source heat pump. Homes heated with oil, propane, electricity or wood get more than gas-heated homes. Pre-approval is required before installation.

Official program page ↗Last reviewed 2026-10
OpenOntarioHome retrofitUp to $10,000

Home Renovation Savings: Insulation, Windows and Air Sealing

Enbridge Gas & Save on Energy (Government of Ontario) — Rebates for insulation, ENERGY STAR windows and doors, and air sealing, when you complete at least two upgrades between pre- and post-retrofit energy assessments. The assessment cost is also rebated.

Official program page ↗Last reviewed 2026-10
OpenOntarioSolar + batteryUp to $10,000

Home Renovation Savings: Rooftop Solar and Battery Storage

Enbridge Gas & Save on Energy (Government of Ontario) — Up to $5,000 for new rooftop solar ($1,000/kW) plus up to $5,000 for a paired battery ($300/kWh), each capped at 50% of costs. The system must be sized for your own use, and you cannot also sign a net metering agreement.

Official program page ↗Last reviewed 2026-10
OpenOntarioSmart homeUp to $200

Home Renovation Savings: Smart Thermostats and Appliances

Enbridge Gas & Save on Energy (Government of Ontario) — Instant or mail-in rebates on a smart thermostat, plus rebates on ENERGY STAR heat pump dryers, induction ranges and other efficient appliances.

Official program page ↗Last reviewed 2026-10
OpenOntarioIncome-qualifiedFree

Home Winterproofing Program

Enbridge Gas — Free insulation, draft-proofing and a smart thermostat for income-qualified households in homes heated mainly by natural gas. Renters can take part with their landlord's approval.

Official program page ↗Last reviewed 2026-10
OpenOntarioSolarBill credits

Net Metering

Ontario Energy Board / local distribution companies — Send extra solar power to the grid and earn kilowatt-hour credits on your bill, which carry forward for up to 12 months. You cannot combine this with the Home Renovation Savings solar rebate.

Official program page ↗Last reviewed 2026-10
OpenOntarioDemand response$75 + $20/yr

Peak Perks

Save on Energy (IESO) — Get paid to let your smart thermostat make small adjustments to central air conditioning or heating during peak demand events.

Official program page ↗Last reviewed 2026-10
OpenMississauga, OntarioEnergy adviceFree

Home Solar Accelerator & Home Energy Coach

Centre for Community Energy Transformation (CCET) — Free, unbiased guidance on planning rooftop solar and other home energy upgrades for Peel Region residents.

Official program page ↗Last reviewed 2026-10
OpenMississauga, OntarioEnergy adviceFree

Peel Climate Ready Homes

Toronto and Region Conservation Authority (TRCA) — Free one-on-one home energy consultations for Peel residents, with practical upgrade incentives for some participants.

Official program page ↗Last reviewed 2026-10
OpenToronto, OntarioGreen roofUp to $100,000

Eco-Roof Incentive Program

City of Toronto — Grants for installing a green (planted) roof or a cool (reflective) roof, which cuts cooling energy.

Official program page ↗Last reviewed 2026-10

Financing programs

OpenFederalMortgageUp to 25% refundStatus to confirm

CMHC Eco Plus (formerly Green Home)

CMHC — A partial refund of your CMHC mortgage loan insurance premium when you buy or build an energy-efficient home.

Official program page ↗Last reviewed 2026-10
OpenFederalBank loanLoanStatus to confirm

Energy Saver Loan

RBC Royal Bank — A bank loan for energy-efficiency upgrades to your home.

Official program page ↗Last reviewed 2026-10
OpenFederalMortgageUp to 25% refundStatus to confirm

Energy-Efficient Advantage Program

Canada Guaranty — A partial mortgage insurance premium refund for borrowers who buy or upgrade to an energy-efficient home.

Official program page ↗Last reviewed 2026-10
OpenFederalMortgageUp to 25% refundStatus to confirm

Energy-Efficient Housing Program

Sagen — A mortgage insurance premium refund for buyers of energy-efficient homes, or for owners who complete energy-saving renovations.

Official program page ↗Last reviewed 2026-10
OpenOttawa, OntarioMunicipal loan0% loanStatus to confirm

Better Homes Ottawa Loan Program

City of Ottawa — A 0% interest loan for home energy upgrades such as heat pumps, insulation and windows, repaid through your property tax bill.

Official program page ↗Last reviewed 2026-10
OpenToronto, OntarioMunicipal loanLoan up to $125,000

Home Energy Loan Program (HELP)

City of Toronto — A low-interest loan for heat pumps, geothermal, rooftop solar, battery storage, insulation, windows, EV chargers and more. You repay it through your property tax bill over 5 to 20 years.

Official program page ↗Last reviewed 2026-10
Questions

Ontario FAQs

How does time-of-use pricing interact with solar?
Panels produce during mid- and on-peak daytime hours — exactly when grid power costs most — so every solar kWh offsets your most expensive consumption.
Is Ontario's grid actually clean?
About 85% of generation is emission-free (nuclear + hydro + renewables). Gas fills peaks, which is why shifting load off-peak and adding storage matter.

Get an Ontario solar evaluation