How many space needed for a 500KW power plant, and how many KWH can get each year?

60m*3m, not included sewage pool and water circulation pool. The sewage pool need to check the moisture of raw material, the water circulation pool need to check your local climate. Normally, we need to do maintenance each month and a full inspection once every three months. The power plant can work 300days, so we can get 3,600,000KWH each year.