scope:

This document gives guidance on writing the technical specifications for wind turbines connected to the electric power network. The purpose of this guide is to enable an intending purchaser to state his requirements clearly to potential suppliers and to make the purchaser aware of options and alternatives he may wish to consider. Details should be worked out through negotiations between purchaser and supplier based on these guidelines. The equipment covered by this guide is related to its function rather than being specified by a detailed description of the equipment to be supplied. This guide is applicable to the actions of both purchasers and suppliers and indicates to potential purchasers how requirements should be stated so that: a) The wind turbine interfaces correctly with the electrical power network; b) predicted performance is achieved; c) ancillary equipment is properly sized; d) reliability, availability and safety requirements are achieved; e) proper consideration is given to the evaluation process and the quality measures to be applied.