Meventus has provided the annual report of wind speed and production index levels for all 40 operational Norwegian wind farms to the Norwegian Water Resources and Energy Directorate (Norges vassdrags- og energidirektorat (NVE)) starting with the 2018 production year.
The assessment methodology includes a modelling approach that is consistent for all parks, regardless of project size, and considers all relevant site-specific factors that influence the local wind regime and production such as terrain, roughness, directional wake losses and air density.
Depending on project size and complexity, a detailed CFD or linear flow model was initiated with a high quality hindcast meteorological reference data downscaled to each specific site using the Weather Research and Forecasting (WRF) model. This data was further scaled to each project site using actual park-level production data measured at the grid feeding point. A model validation plot for one of the projects is provided below.
The individual annual reports (in Norwegian) are available below:
2018 Report: Wind and Production Indices for Wind Power Projects in Norway, 2018
2019 Report: Wind and Production Indices for Wind Power Projects in Norway, 2019
2020 Report: Wind and Production Indices for Wind Powers Project in Norway, 2020
All NVE historical production index reports can be found here.