Energy Savings Estimator

The types of home energy retrofits you prioritize, and the order in which you do them can impact your home’s comfort. You can check the energy savings you can create with typical home efficiency upgrades with our visualizer tool.

Gigajoules of Energy Used Per Year

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Net Zero

Gigajoules of Energy Used Per Year

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Net Zero

Retrofit Interactive Visualizer

See the benefits of upgrading your home to be more energy efficient.

Building Envelope:

Mechanicals & Equipment:



Retrofit Tips

Here’s a short list of quick tips on retrofit measures that will help you achieve a deep energy retrofit for a healthier, happier, and more climate-friendly home.

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Building Envelope Tips

Draft proofing.

A large and cost-effective opportunity – a blower door test will find the leaks.

Adding insulation to the attic

Attic should be topped up to at least R50.

Adding insulation to the basement.

Finishing and insulating the basement provides comfortable extra space in many houses. Codes call for R22.

Adding insulation to the walls.

Wall insulation gets little attention but is a LARGE opportunity for savings. Building Codes now call for R22 at least.

Upgrading to Energy-efficient windows & doors

Energy Star windows increase comfort, reduce bills and enhance curb appeal.

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Mechanicals & Equipment Tips


Upgrading to a heat pump

Replace the old furnace with a heat pump which can also double as an cooling appliance during the hot summer months to replace your air-conditioner. But only after completing the building envelope upgrades so it is not oversized.

Add or upgrade to a smart thermostat

A smart thermostat allows setting back the temperature overnight or when away.

Hot Water:

Upgrading to heat pump water heaters

A heat pump hot water heater can help get you house off fossil fuels and reduce water heating costs.

Adding a drain water heat recovery pipe

This clever copper pipe will save energy for the rest of the life of the house.

Lights & ENERGY STAR Appliances

Energy Star appliances & LED lighting make a real difference on the electric bill.

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Renewables Tips

Solar electric panels can sometimes offset all remaining energy use in an efficient house. Their potential contribution is highly site-specific.

Pairing a home battery system with your solar photovoltaic system allows you to store excess solar energy for later use. These batteries can also supply power during electrical outages and charge up during cheap off-peak hours if your local utility uses time-of-use rates.

A solar hot water system can meet up to half your hot water needs.

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A full home energy upgrade will transform the health and comfort levels of your home while also reducing your energy bills and carbon footprint. You may be eligible for multiple rebates, loans or incentives that can help with retrofit costs.

Find out about incentives