The formula to calculate the annual power generation of a photovoltaic array is: [ P = 365 cdot H cdot A cdot eta cdot K ] where: Let's assume the following values: Using the formula: [ K = 0. 48 ].
, the power generated by one wind turbine per year typically ranges from 6 to 10 million kWh, depending on size and location. 5–3 MW turbine can generate 7–9 GWh annually in high-wind areas.