Söderfors Project

Uppsala University has developed a directly driven generator for tidal/instream applications. The turbine in operation is a vertical axis turbine with five blades (could be three/four-bladed) and a radius of ca 3m and a height of ca 3.5m. On its tripod the turbine reaches 4m above the riverbed. Rotation speed: 15 (max 20) rpm at velocities of 2 m/s. Located in the municipality of Söderfors, in the river Dal, 50 km north of Uppsala. The turbine is placed in a tributary part of the river, at 7m depth, and 200m downstream a hydropower dam. This enables experimental approaches including the possibility of controlling and changing velocity. The turbine is connected to a measuring station located on the shore, 50m away, by a feeding cable. The facility is prepared for grid connection.

uu.diva-portal.org

Project Manager

Uppsala University

Additional Information

Project Website

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:<ul> <li>Planned: Project has identified a deployment location and is preparing for deployment</li> <li>Operational: Project is deployed in the water and is active</li> <li>Completed: Project was previously deployed in the water</li> <li>Decommissioned: Installation has been fully removed in accordance with regulations</li> <li>Canceled: Project was canceled before being deployed in the water</li></ul>

Operational

Max Rated Power Capacity The maximum amount of electricity that can be produced by project, based on available resources and device nameplate capacity.

0.0075 MW

Operational Duration

June 2013 - September 2016

Project Duration

2007 - 2016

Energy Resource

Riverine

Project Scale

Full-scale

Number of Devices

1

Grid Connectivity

Grid Connected

Waterbody

River Dal

Site Characteristics Geographic characterization for the project location:<ul> <li>Open Ocean: Main body of ocean, not enclosed or partially enclosed by land</li> <li>Coastal: Open water near the coast, spanning between land and shelf boundary</li> <li>Enclosed Bay: water that is partially surrounded by land, with a mouth open to larger water</li> <li>Constricted Channel: A channel where water flows quickly due to narrowing by the land</li> <li>River: Water flowing from land towards a larger body of water</li></ul>

River

Country

Sweden

Environmental Details

Tethys Metadata

Last Modified

12 September 2025

This Project has the following MRE Devices

Citation Formats

“Söderfors Project.” Marine Energy Projects Database: Projects, PRIMRE, United States Department of Energy, https:https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Projects/S%C3%B6derfors_Project. Accessed <day> <monthRoman> <year>.

Marine Energy Projects Database: Projects. <year>. "Söderfors Project." Accessed <monthRoman> <day>, <year>. https:https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Projects/S%C3%B6derfors_Project.

PRIMRE/Databases/Projects Database/Projects/Söderfors Project

Söderfors Project

This Project has the following MRE Devices

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