Local guide

Lowering energy bills in Mississauga

Large numbers of 1970s–1990s detached homes with original attic insulation and aging furnaces.

Last reviewed November 2, 2026
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Mississauga at a glance

Electricity distributor: Alectra Utilities
Natural gas: Enbridge Gas
Heating degree days: about 3,600 per year
Winter design temperature: about -18 °C
Solar potential: about 1,160 kWh per kW per year
Electricity prices: Province-wide RPP, effective November 1, 2026

Typical annual heating cost in Mississauga

Estimated for a 2,000 sq ft existing detached home. Your costs depend on insulation, airtightness and thermostat settings.

Natural gas furnace (95%)	$1,030
Cold-climate heat pump	$1,280
Propane (92%)	$3,280
Electric baseboard	$3,600
Heating oil (80%)	$4,240

Assumes gas at $0.45/m³, electricity at $0.16/kWh all-in, oil at $1.6/L, propane at $0.95/L and a seasonal heat pump COP of 2.8. Run it with your own numbers.

Heat pump sizing in Mississauga

A typical 2,000 sq ft existing home here needs roughly 35k BTU/h of heat at -18 °C. Ask contractors for capacity at that temperature, not just the nominal tonnage.

Estimate your home's load

Choosing a price plan

Alectra Utilities customers can choose Time-of-Use, Tiered or — where offered — Ultra-Low Overnight at 3.7¢/kWh from 11 p.m. to 7 a.m. Households with an EV or flexible loads often save on ULO.

Compare plans

Where to start

Air seal and insulate the attic
Set thermostat schedules and check your price plan
Replace end-of-life heating with a heat pump or hybrid
Swap remaining bulbs for LEDs

Take the home energy checkup

Common questions in Mississauga

Who supplies electricity in Mississauga?

Alectra Utilities delivers electricity to most homes in Mississauga. Commodity prices are set province-wide by the Ontario Energy Board; delivery charges are set for each utility. You can choose Time-of-Use, Ultra-Low Overnight (where offered) or Tiered pricing by contacting your utility.

Do heat pumps work in Mississauga winters?

Yes. Mississauga's design temperature is about -18 °C, and cold-climate air-source heat pumps are rated to operate around −25 °C to −30 °C with reduced capacity at the coldest temperatures. Most homes here can be heated by a well-sized heat pump with modest backup heat.

What rebates are available in Mississauga?

Homeowners in Mississauga can use Ontario's Home Renovation Savings Program for heat pumps, insulation, windows, smart thermostats and more, along with income-qualified programs from Save on Energy and Enbridge Gas. Some municipalities also offer home energy loans — check with the City of Mississauga.

Roofs in Mississauga can produce about 1,160 kWh per installed kW each year. Estimate it for your roof