Imagine living in a home that eliminates your utility bills and even pays you for the energy it generates. On top of that, it’s built to withstand extreme weather and doesn’t contribute to carbon pollution. Sounds awesome, right? But the real question is—can you afford one?
What Is a Net-Zero Home?
Net-zero homes are designed to produce as much energy as they consume, making them incredibly efficient and sustainable.
Advocates argue that transitioning homes and commercial buildings to net zero is crucial, given that buildings are responsible for about 13% of total U.S. greenhouse gas emissions and roughly 13-14% in Canada. Residential homes alone contribute an estimated 6-8% of Canada’s total emissions, so adopting net-zero housing could play a significant role in reaching the country’s 2050 climate goals.
There are two types of net-zero homes:
- Net-Zero Energy (NZE) Homes – These homes generate as much energy as they use yearly through on-site renewable sources like solar panels, wind turbines, and geothermal energy.
- Net-Zero Carbon (NZC) Homes – If a building can’t produce all its energy on-site, it can still achieve net-zero status by sourcing renewable energy from off-site sources to offset its consumption.
How Are Net-Zero Homes Built?
Net-zero homes are built using advanced techniques and technologies to achieve optimal energy efficiency and produce as much clean energy as they consume. These homes are designed to be up to 80% more energy efficient than typical new homes. Net-zero homes can be new builds, but existing homes can be retrofitted to net-zero standards. Below are some of the key components of a net-zero home.
Superior Building Envelope
- Airtight construction using high-performance windows and doors.
- Significant insulation to reduce heat loss in winter and heat gain in summer.
- Super-sealing techniques, including continuous super-seal within the structure and sealing of all cavities (electric boxes, attic, crawl spaces.)
Energy-Efficient Systems
- High-efficiency HVAC systems, often using heat pumps instead of traditional furnaces.
- Energy-efficient appliances and LED lighting.
- Smart controls for optimized energy management.
Renewable Energy Generation
- Solar panels are the most common and cost-effective option for on-site energy generation, with batteries used to store energy and send electricity back to the grid.
- Some homes may also incorporate other renewable technologies like wind power or geothermal energy.
Can You Afford a New Net-Zero Home?
Net-zero homes sound amazing, right? But can you afford one?
If you’re building a new home, the real question is—can you afford not to go net zero? On average, a net-zero home costs about 10% more to build than a conventional one. But when you factor in energy savings, you come out ahead, even in the short term!
Let’s break it down. In cities like Calgary and Edmonton, building a standard home costs $200 to $240 per square foot. A net-zero home, by comparison, would cost between $220 and $270 per square foot.
Now, say you buy a city lot and build a smaller home. A conventional home might cost $400,000, while a net-zero version of the same house would be around $440,000. With a 20% down payment, a 4% interest rate, and a 25-year mortgage, your monthly payments would be about $1,680 for the conventional home and $1,850 for the net-zero one.
But here’s where it gets interesting: The average Canadian household spends around $2,200 annually on energy—about $180 per month. So, if you’re in a conventional home, your total monthly cost (mortgage + energy) would be about $1,860—a bit more than the net-zero home.
And it doesn’t stop there. The Alberta Electric System Operator (AESO) predicts electricity prices will rise by 6.1% annually over the next five years, potentially increasing by 34.4% by 2030. Due to growing demand, Deloitte expects natural gas prices to spike in 2025. That means energy costs will keep climbing—making a conventional home even more expensive.
So, while a net-zero home may cost more upfront, it’s a wiser investment that pays immediately and gains even more benefits as energy prices rise.
What About a Net-Zero Retrofit?
Already own a home? You might be wondering if you can make it net zero. The good news is that most homes can be retrofitted to be net zero or close to it. The bad news? It’s expensive—typically costing between $60,000 and $100,000 per home. Most homeowners simply don’t have that kind of money, and the energy savings alone wouldn’t pay off the investment for decades.
For most people, getting to net zero isn’t something they can do alone. In 2024, the federal government introduced a $5,000 grant for energy-efficient retrofits, but it mostly covered upgrades like high-efficiency furnaces or heat pumps—not the bigger problem most homes face: poor insulation and air sealing.
With around 16 million homes in Canada needing retrofits, the scale of the challenge is massive. According to the Pembina Institute, a large-scale renovation effort could generate over $48 billion in annual economic activity. However, the federal and provincial governments would need to invest $10–15 billion annually for the next 20 years to make it happen.
So far, the federal government hasn’t committed to that funding, but they offer interest-free loans of up to $40,000 for energy retrofits, repayable over 10 years. While that’s helpful, many homeowners still need to cover additional costs out of pocket.
Help for Low- and Middle-Income Canadians?
There’s some relief if you’re a low- or middle-income homeowner (or tenant). The Greener Homes Affordability Program will offer free home retrofits, like insulation and heat pumps, to help cut down energy bills, with applications opening in quarter two of 2025.
But the reality is that even with interest-free loans, retrofits are out of reach for most Canadians. A February 2025 Leger survey found that 46% of Canadians live paycheque to paycheque, with no extra money to repay loans.
Ironically, wealthier homeowners can afford net-zero builds and retrofits, saving money on utilities in the long run, while lower-income Canadians are stuck with drafty, inefficient homes and skyrocketing energy bills.
If Canada is serious about cutting carbon emissions, making net-zero homes and retrofits a priority isn’t optional—it’s necessary.
Want to access energy retrofit programs?
- For federal programs, click here.
- For Alberta programs, click here.
