IEA Wind Task 25 phase VI

The main objective of the project is to contribute to the international cooperation and knowledge sharing around the very important and current topic of wind integration into the power systems via the IEA Wind Task 25, focusing on the very successful Danish experience with operating a system with very large share of wind power. The purpose of the IEA Wind Task 25, from its inception in 2006, has been to analyse and further develop methodologies to assess the impact of wind and other variable generation (mainly solar PV) on power systems: producing summaries on the range of impacts for different power systems as well as best practices to assess the impacts.

The IEA Wind Task 25 also gathers information on current experience concerning the impacts on power systems operation and the best practices adopted to mitigate potential adverse impacts on system security, reliability, and resilience. Furthermore, the IEA Wind Task 25 group is moving towards studying how wind, with PV, can be the backbone of future decarbonised energy systems, including other energy uses than electricity. New challenges to be addressed by participating countries include:

• grid support by wind power plants, especially system stability support in times of close to 100% inverter based generation;
• energy system integration, bringing new electrification loads to power systems;
• new flexibilities from demand and storage to the planning and operational tools;
• integration of renewable hybrid/virtual power plant;
• digitalisation impact on integration, including the opportunities for smaller devices to con-tribute to flexibility needs and the challenges of more complex systems with more sensors and controls.

In general, the work will be directed more from addressing the impacts towards analysing the solutions to mitigate potential adverse impacts.