Deployment of Norwegian wind power plants has increased dramatically in the last five years, and the last three years have been the strongest on record. In 2021, 706 MW of new capacity was commissioned. All this growth has been onshore.
Six projects were fully commissioned in 2021, and four additional projects started producing electricity. Adding to this, one project was repowered. The sizes of the projects varied from 3 to 72 wind turbines.
All projects use modern turbine technology, and all projects use generators of 4.2 MW or larger. The maximum generator capacity was 5.7 MW, and this was used in two of the ten projects. Rotor diameters varied from 117 to 150 meters. Tower heights show no significant increase since 2020, with 144 meters hub height as the highest installed wind turbine this year.
Wind resources in 2021 were lower than normal, resulting in a capacity-weighted production index for Norwegian wind farms in 2021 of 93.6 %. The average capacity factor for Norwegian wind farms in normal operation was 32.9%.
TetraSpar, a new demonstrator for a floating offshore wind turbine concept, was installed. The demonstrator has a new floating foundation concept with a tubular steel main structure and a suspended keel. The capacity of the demonstrator is 3.6 MW.