Wind Energy Calculators

Free wind energy calculators: turbine power output, annual energy production, payback period, capacity factor, and wind vs solar tools.

Estimate annual kWh from a wind turbine using rated power, capacity factor, and operating hours. Includes site quality and array losses.

Calculate wind turbine capacity factor from rated power and annual energy. Compare your turbine output to onshore and offshore industry averages.

Calculate wind speed boost from raising a turbine tower. Use the wind shear power law to compare hub-height speeds at 30, 50, 80, or 100 feet up.

Calculate air density from temperature, pressure, and altitude. Used for wind turbine power corrections, aviation, and aerodynamics.

Convert wind speed between m/s, km/h, mph, knots, and Beaufort scale. Includes Beaufort description and wind turbine cut-in reference.

Calculate how long a home wind turbine takes to pay for itself. Factor in installation cost, annual output, and electricity savings.

Calculate how much power a wind turbine produces at a given wind speed. Estimate annual energy output from rotor diameter and average wind speed.

Compare annual energy output and cost from wind and solar at your location. Find which renewable energy source suits your site better.