Check whether wind is worth it
Small wind can fill the winter gap when solar is weakest, but only on windy, exposed sites with a tall tower. Most sites are not windy enough, so check the data before buying.
How
- Look up your annual average wind speed on national wind maps. The US Department of Energy says small wind is practical where the annual average is at least about 4 m/s (9 mph); its older guide asks for 10 mph at hub height.
- Remember that maps often report speeds at heights well above a small turbine tower, so real speeds at 20 to 30 m are usually lower.
- Plan for a tower that puts the rotor at least 30 feet (about 9 m) above anything within 300 feet (about 90 m), and upwind of trees and buildings.
- On complex terrain, consider logging wind with an anemometer for a year before committing.
- Note seasonal patterns: one turbine maker reports wind is typically strongest in winter, which complements solar.
- Check local zoning for tower height limits early with the legal module.
Safety: Never climb a tower or work on a turbine while it is free to spin. Use the turbine's brake or shutdown procedure first.
Do these first
Sources
- Small wind energy for homes, farms and communities. US Department of Energy, accessed 2026-11
- A Primer on Small Wind Systems. Bergey Windpower, accessed 2026-11