Small wind turbines can be worth it for Canadian farms and rural properties with strong, steady wind, open land and room for a tall tower. For most suburban and urban homes, they aren't: winds near rooftops are too weak and turbulent, and solar panels usually deliver more energy per dollar. The deciding factor is your site's average wind speed at hub height, so measuring or estimating it carefully comes first.
Key takeaways
- Location is everything. Small wind generally needs an average wind speed of roughly 4.5 to 5 m/s or more at hub height to make sense.
- Towers need to be tall, typically 18 to 36 metres or more, and well clear of trees and buildings.
- Roof-mounted and "urban" turbines usually underperform badly.
- A 10 kW system on a proper tower often costs somewhere around $60,000 to $120,000 installed in Canada (approximate).
- Wind and solar complement each other: wind is often stronger in winter and at night, when solar is weakest.
What counts as "small wind"?
Small wind usually means turbines from a few hundred watts up to roughly 100 kW:
| Size | Typical use |
|---|---|
| Under 1 kW (micro) | Battery charging at cabins, boats, remote equipment |
| 1–10 kW | Rural homes, small farms, off-grid properties |
| 10–100 kW | Larger farms, rural businesses, community buildings |
For context, a typical Canadian home uses somewhere around 7,000 to 12,000 kWh a year, depending on heating, region and size. If you want the basics of how any turbine works, start with our plain-language guide to wind turbines.
The most important question: how windy is your site?
Because the power in wind rises with the cube of wind speed, a site averaging 6 m/s has far more energy available than one averaging 4 m/s, roughly three times as much.
How to assess your wind
- Wind maps: Canada has publicly available wind atlas data that gives a first estimate at various heights.
- Local clues: trees permanently bent in one direction, nearby airport data, or neighbours with turbines.
- On-site measurement: an anemometer on a mast for a year gives the best answer, though it adds cost.
Height and turbulence
Wind near the ground is slowed and churned up by trees, buildings and terrain. A common rule of thumb is that the bottom of the rotor should be at least 9 metres (30 feet) above anything within about 150 metres. That's why rooftop turbines rarely perform: they sit in the turbulent zone and can also transmit vibration into the house.
Approximate costs and output
| System | Approximate installed cost | Possible annual output (good site) |
|---|---|---|
| 1 kW on a short tower | $8,000–$20,000 | 1,000–2,500 kWh |
| 5 kW on a 25–30 m tower | $35,000–$70,000 | 6,000–12,000 kWh |
| 10 kW on a 30–36 m tower | $60,000–$120,000 | 12,000–25,000 kWh |
All figures are rough Canadian ranges. Actual output depends heavily on your wind resource, tower height and equipment.
The tower, foundation, wiring and installation often cost as much as the turbine itself. Remote sites with difficult access cost more.
Small wind vs. solar for a rural property
| Factor | Small wind | Solar PV |
|---|---|---|
| Cost per kWh produced | Highly site-dependent; excellent sites can compete | More predictable; usually lower for most sites |
| Seasonal pattern | Often stronger in fall and winter | Strongest in late spring and summer |
| Night production | Yes | No |
| Maintenance | Moving parts; periodic inspections and service | Very low |
| Siting | Needs open space and tall tower | Roof or ground mount |
| Permits | Height, setbacks, sometimes airport or bird reviews | Usually simpler |
For many rural properties, a hybrid system makes sense, especially off-grid. Solar carries summer, wind helps in winter, and batteries smooth the gaps. See our off-grid cottage solar guide and the broader wind energy page.
Permits, setbacks and grid connection
Before buying, check:
- Municipal zoning: many municipalities have height limits and setback rules for towers.
- Provincial rules: electrical permits and inspections apply. Some provinces have specific small-wind guidance.
- Utility connection: if you want to connect to the grid, your utility will have interconnection requirements, and net metering rules vary by province.
- Aviation: tall towers near airports or airstrips may need review.
- Neighbours: a quick conversation goes a long way.
Your provincial guide is a good starting point, and you can search current programs by address with our rebate finder.
Maintenance and lifespan
Small turbines have moving parts and live in harsh conditions. Expect:
- Annual inspections of bolts, blades and wiring.
- Occasional bearing or component replacement.
- A tilt-up tower or crane access for major repairs.
- A useful life of roughly 15 to 25 years with good care.
Choose turbines with a track record and certification to a recognized small wind standard, and a dealer who can service them locally.
Frequently asked questions
Can I put a wind turbine on my house roof?
It's generally not recommended. Rooftop winds are weak and turbulent, so output is usually very low, and vibration can cause noise and structural concerns.
Do small wind turbines make noise?
Modern small turbines produce some sound, usually a whoosh that's often masked by the wind itself. Proper siting and distance from homes helps a lot. Our article on wind turbine noise and health covers the research.
Is small wind good for off-grid properties?
It can be excellent at windy sites, especially paired with solar and batteries, since wind often blows when the sun doesn't.
The bottom line
Small wind isn't for every home, but at the right site, an open, windy farm or rural property with room for a tall tower, it can produce a lot of clean power, especially in winter. Measure your wind before you buy, budget for a proper tower, and compare against solar honestly. Often the best answer is a combination of both.
Sundamentals is an independent, non-profit education platform. Program details and prices change often — check current programs for your address in our rebate finder.