Learn · Sustainable Energy
A bigger turbine on a bad site loses to a small one on a good site. With wind, location is almost everything.
Wind power has a reputation problem. A lot of small turbines get bolted to rooftops, spin lazily, and never make the power the box promised. The turbine is rarely the reason. The site is.
Wind energy follows a hard rule that catches people out. The power in the wind rises with the cube of its speed. Double the wind and you get eight times the energy.
Wind rewards the right site more than the biggest turbine, because a little more wind speed is worth far more than a little more blade.
The Cube Rule Changes Your Whole Plan
Because power scales with the cube of speed, slow wind is almost worthless and strong wind is gold. This single fact decides where a turbine is worth installing and where it never will be.
- ▸A site with steady strong wind beats a gusty one with the same average.
- ▸A small jump in average wind speed can double your real output.
- ▸If the wind is weak where you stand, no turbine fixes that.
▶ Watch
Why the right site matters more than the biggest turbine when it comes to wind.
Measure the wind before you buy the turbine. A year of honest data is worth more than any brochure.
Height Beats Size
Wind near the ground is slow and chaotic. Buildings, trees, and hills break it into turbulence that wears a turbine out and makes little power. Climb higher and the wind gets faster and cleaner.
This is why a turbine on a tall tower in open ground will quietly outperform a larger one stuck on a roof in the mess of broken air. The cheapest performance upgrade in wind is usually a taller pole.
Where Wind Earns Its Place
Wind shines where the sun is weak. It often blows hardest in winter and at night, exactly when solar fades. That makes the two a natural pair rather than rivals.
- ▸Open, exposed land with few obstructions for a long stretch upwind.
- ▸Coastlines, ridgelines, and wide plains where wind has room to build.
- ▸Paired with solar, to cover the dark and stormy half of the year.
Be Honest About Your Site
The kindest thing you can do for a wind project is to tell the truth about the wind. Most disappointed owners skipped that step. They bought the turbine, then hoped the site would cooperate. Do it the other way around.
The takeaways
- →Power rises with the cube of wind speed, so site beats size.
- →Get the turbine high into clean air, above the turbulence.
- →Measure first. Pair with solar to cover the dark months.