Task 27 worked to develop reasonable criteria for design requirements: vertical velocity, turbulence intensity design levels, replacement of the Normal Turbulence Model (NTM), vibration, and VAWT simplified loads methods.
In 2018, Task 27 accomplished the following:
- Compile country case studies documenting all the CFD modeling, measurements results, and modeling and testing efforts conducted within scope of Task 27
- Compile, discuss, and complete the documentation of technical recommendations for the future IEC 61400-2 standard, fourth revision
- Finalize the IEA Wind TCP Recommended Practices on micro-siting of small wind turbines
These activities were be concluded at the end of 2018 and shared with IEC 61400-2 fourth revision experts and other stakeholders.