Capacity Factor

The capacity factor is the ratio of the system's predicted electrical output in the first year of operation to the output had the system operated at its nameplate capacity:

EQ_CF

Where,

CF

Capacity factor.

EOutputYear1 (kWh)

The total annual electric generation in the first year of operation, equivalent to year one in the project cash flow.

PSystemCapacity (kW)

The system's rated capacity expressed in kilowatts (see table below).

8760 (hours)

Number of hours in a simulation year.

The system capacity depends on technology being modeled. Note that Solar Advisor converts the capacity value to kW before using it in the calculation.

Table 38. Rated system capacity values for each technology.

Technology

System Capacity

Input Page

PV SAM Performance Models

Total Array Power (Wdc)

Array

PV PVWatts

DC Rating (kW)

PVWatts Solar Array

CSP Parabolic Trough

Rated Turbine Net Capacity (MWe)

Power Block

CSP Power Tower

Nameplate Capacity (MWe)

Power Cycle

CSP Dish Stirling

Total Capacity (kW)

Solar Field

Generic Fossil

Nameplate Capacity (kWe)

Fossil Plant