IEC 61400-12-5 Ed. 1.0 b:2022

This part of IEC 61400 specifies the procedures for assessing the significance of obstacles and
terrain variations on a proposed power performance measurement site and applies to the
performance testing of wind turbines of all types and sizes connected to the electrical power
network as described in other parts of the IEC 61400 series. The procedure applies to the
performance evaluation of specific wind turbines at specific locations.