Nameplate (or Nominal) capacity describes the maximum output of an energy producing technology. Most technologies are described in terms of nameplate capacity. However, Nameplate Capacity can cause confusion and at times be misleading. This is especially true when describing alternative energy technologies. A wind turbine may be described in terms of its Nameplate Capacity but the prescribed unidirectional wind speed to achieve this may occur very infrequently. Consequently, when measured over a period of time, the turbine may output far less than its Nameplate Capacity. A more reliable approach is to divide Nameplate Capacity by Capacity Factor for a more accurate measurement of true (alternative) energy production.