Wind Turbine Annual Energy Calculator
Estimate annual wind-turbine production from rated power, capacity factor, and availability.
Wind Turbine Annual Energy measurements
Enter your values, then calculate.
Result
How to calculate wind turbine annual energy
Estimate yearly electricity generation for a wind turbine using realistic capacity and availability assumptions.
How the calculation works
Rated power multiplied by 8,760 hours gives the theoretical maximum. Capacity factor and availability reduce that maximum to expected annual production.
Example
A 100-kW turbine at 30% capacity factor and 95% availability produces about 249,660 kWh per year.
Frequently asked questions
What is capacity factor?
It is actual or expected energy divided by the energy the turbine would produce at rated power continuously.
Wind Turbine Annual Energy Calculator
Rated power multiplied by 8,760 hours gives the theoretical maximum. Capacity factor and availability reduce that maximum to expected annual production.
Let's understand your wind turbine annual energy result.
Calculate a result above and this guide will help you interpret it using this calculator's own formula and explanation.
Pro Tips for Wind Turbine Annual Energy
- Use site-specific wind data when available.
- Keep maintenance downtime in availability rather than capacity factor.
Common Wind Turbine Annual Energy Mistakes to Avoid
- Assuming the turbine produces rated power every hour greatly overstates annual energy.
When to Use This Calculator
Estimate yearly electricity generation for a wind turbine using realistic capacity and availability assumptions.