Wind Electricity Estimator
Size up what a small turbine could do on your farm with local wind and your power rate.
Location & Wind Data
Tower Height
Wind shear adjustment applied for 30 ft tower height.
Turbine Specifications
Financials
Wind Class Indicator
Monthly Production Estimate
Detailed Results
- Estimated annual energy--
- Average monthly energy--
- Average power output--
- Capacity factor--
- CO2 avoided--
Results will appear after all inputs are filled.
Capacity Factor
Return on Investment
- Annual savings--
- Simple payback--
- Lifetime savings (20 yr)--
Add your electricity rate to see savings and payback.
Small Wind on Farms
Small wind can make sense where the site is open, the tower can be tall, and the wind is steady. It works best for farms with year-round electric loads like refrigeration, pumps, or shops. Production swings by season, so expect strong winter output and lighter summer output in many regions. A clear view of the wind and proper siting matter as much as the turbine you pick.
Wind Class Reference
Frequently Asked Questions
Where does the wind data come from?
Wind speed estimates come from the NREL WIND Toolkit and other public wind resource datasets. The estimator interpolates to your location and adjusts for the tower height you enter using a power-law profile.
Why does tower height matter so much?
Wind speed increases with height, and turbine output scales with the cube of wind speed. A small height increase can mean a large jump in production. The estimator lets you compare different tower heights to see whether the extra cost is worth it.
Is small wind a good fit for most farms?
Often not. Small wind requires good average wind (typically 12 mph or higher at hub height), tall enough towers to clear obstructions, and a clear location with no turbulent terrain upwind. Solar usually pencils out better unless wind conditions are exceptional.
Can I sell power back to the grid?
It depends on your state's net metering rules and your utility's interconnection terms. Some states allow full net metering for small wind; others limit it. Check with your utility before sizing a system.
What about maintenance?
Small turbines have moving parts, brakes, and electronics that need regular service. Plan on annual inspections and budget for periodic replacement of bearings, blades, or inverters over a 20-year life.