Question: how to calculate gwh per year?
Answer: Multiply the MWh figure from Step 1 by 8,760, the number of hours in a year. In this example, that would yield 87,600 MWh total annual power production. Divide the annual MWh figure from Step 2 by 1,000 to get GWh. Thus, 87,600 MWh/year equals 87.6 GWh/year.