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PRIMRE/Databases/Projects Database/Projects/Crestwing Demonstration
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Crestwing Demonstration
Based on technology developed and tested in 2012 called Fladstrand, Crestwing (Waveenergyfyn in 2012) anchored their Tordenskiold attenuator wave energy converter (WEC) in December of 2018 east of Hirsholmene, located 6 km northeast of Frederikshavn in the Kattegat Strait. The device was deployed for five and a half months with the goal of testing both the power take off (PTO) and the three point anchoring system for survivability. The Tordenskiold was launched at half scale (1:2) with a 50 kilowatt generator onboard for energy conversion.
The device was deployed a second time in February of 2020 in the same location once again testing the survivability of its subsystems but also with a focus of gathering data for control optimization. The deployment was completed by November that same year.
Additional Information
Project Status
Is the project actively being planned or is deployed in the water (active)? Or was the project canceled or completed (inactive)?
Active
Project Life Cycle
Project Progress through life cycle:
- Planned: Project has identified a deployment location and is preparing for deployment
- Operational: Project is deployed in the water and is active
- Completed: Project was previously deployed in the water
- Decommissioned: Installation has been fully removed in accordance with regulations
- Canceled: Project was canceled before being deployed in the water
Completed
Max Rated Power Capacity
The maximum amount of electricity that can be produced by project, based on available resources and device nameplate capacity.
.05 MW
Operational Duration
February 2020 - November 2020
Project Duration
2018 - 2020
Energy Resource
- Wave
Project Scale
Full-scale
Number of Devices
1
Grid Connectivity
Not Grid Connected
Waterbody
Kattegat Strait
Site Characteristics
Geographic characterization for the project location:
- Open Ocean: Main body of ocean, not enclosed or partially enclosed by land
- Coastal: Open water near the coast, spanning between land and shelf boundary
- Enclosed Bay: water that is partially surrounded by land, with a mouth open to larger water
- Constricted Channel: A channel where water flows quickly due to narrowing by the land
- River: Water flowing from land towards a larger body of water
Constricted Channel
Country
Denmark
Last Modified
10 June 2025
This Project has the following MRE Devices
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Citation Formats
“Crestwing Demonstration.” Marine Energy Projects Database: Projects, PRIMRE, United States Department of Energy, https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Projects/Crestwing_Demonstration. Accessed <day> <monthRoman> <year>.
Marine Energy Projects Database: Projects. <year>. "Crestwing Demonstration." Accessed <monthRoman> <day>, <year>. https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Projects/Crestwing_Demonstration.
