Review of Procedures for Verification of Grid Code Compliance of Renewable Generation

Abstract

Renewable generation has undergone an enormous increase in the last decade all over the world, in terms of energy, installed power and number of plants. In order to cope with a huge number of connection applications, system operators are detailing specific procedures for verifying the compliance of the plant performance to the grid code requirements. This paper reviews the procedures used by system operators of different countries with the objective of introducing actual practices and highlighting the similarities and differences among countries. In general, for plants that include multiple similar units, the compliance procedure includes a mixture of commissioning tests and simulations results, with the later used for plant model validation purposes. Also, for some specific requirements only simulation results are accepted for the entire plant, when a single unit has been validated against measurements for the same requirement.