CALCULATE THE HOURLY KILOWATT OUTPUT FOR YOUR WIND TURBINE
Overview of Wind Turbine Output Calculator
This calculator shows how much kilowatts your turbine will produce in an hour.
Simply input the radius of your turbine (in meters) and the average wind speed for your local area. Check the link to the wind maps above
You can also configure the air density and the efficiency for your wind turbine. At sea level air density is 1.225 kg/m³ . We default the calculator to this value but you can easily update it. In colder climates or if you live at higher altitudes this number will be different.
The % of efficiency is defaulted to 40%. On average a turbine is producing some energy 35% to 45% of the time. If you think your turbine will be less efficient you can configure this too.
To calculate the kilowatt output we run all your inputs through this formula:
π/2 * r² * v³ * ρ * η
This is Pi divided by 2, multiplied by the turbines radius squared, multiplied by the wind speed cubed, multiplied by air density and then by the efficiency.
This gives us the hourly kilowatt output.