I was referring to the capital cost
Capital Cost = cost to purchase & install the equipment
This initial cost may be financed over a period of years so that the revenue for power generated does not cost customers too much. The annual costs to the utilities also has to cover the maintenance costs and fuel costs depending on the type of powerplant. The financing period cannot exceed the operational lifetime of the equipment, but preferably it will be *much* shorter. After all most utilities are interested in profit.