1. The capacity factor is the ratio of the … 1. The capacity factor is the ratio of the system's predicted electrical output in the first year of operation to the nameplate output, which is equivalent to the quantity of energy the system would generate if it operated at its nameplate capacity for every hour of the year. For PV systems, the capacity factor is an AC-to-DC value. For other systems, the capacity is an AC-to-AC value.ystems, the capacity is an AC-to-AC value.
, 2. The net capacity factor is the unitless ratio of an actual electrical energy output over a given period of time to the maximum possible electrical energy output over the same amount of time