Province of Zeeland
Netherlands | POWERDAM-NL

Lead Organisation MET-support
Country Netherlands
Type Tidal
  • Type of Testing Tidal
    Year Established 2021
    Temperate/Tropical Temperate
    Commercial/Array/Full scale/Scale Commercial
    Development Status Under construction


    A consortium plans to realise a 1.6MW, 9m€ tidal power plant at the island of Schouwen-Duivenland in the Flakkeese discharge sluice.
    The project contributes to a 100% sustainable, predictable and affordable energy system and is replicable. The sluice is built in the Grevelingendam which connects the Island to mainland. The storm surge dam separates the Eastern Scheldt Sea from Grevelingen Lake . The sluice consists of 6 gates, each 3 x 3m. Each gate discharges sea water in two directions, driven by the tidal variation on the Eastern Scheldt. The purpose of the sluice is to improve water quality of the lake. The consortium also plans for a test facility. One of the 6 gates will be flexibly available for certifying power performance of novel tidal turbines in order to reduce (perceived) risks and attract investors. These turbines can then be used in new projects,such as a tidal power plant in the Brouwersdam and large future energy concepts such as Dynamic Tidal Power (DTP) and Delta21 pumped-storage. These projects rely on the availability of ultra-low head tidal turbines. Finally, we plan to test turbines that can be used as pumps to discharge water in case of high water levels. The multi faceted project will boost innovation, regional employment and build strong links with education andr esearch.
  • Number of Berths 6 (1 for testing, 5 for production)
    Water Depth 5m-50m
    Min Water Depth (m) 5
    Max Water Depth (m) 50
    Avg Water Depth (m)
    Annual mean significant wave height
    Maximum recorded wave height
    Mean (averaged current speed) 4.5 m/s
    Maximum current speed
    Maximum tidal range 2.5 m
    Mean wind speed
    Max wind speed
    Seabed type Concrete
    Total test area (km2)
    Distance to land
    Grid connected Y
    Grid connection capacity 100 MW
    Rated export capacity and connection 2 MW
    Proximity to nearest harbour (km) 3 km
  • Demonstration Projects

    Under development

    R&D Projects

    Under development


    Under development

    Equipment available to support site deployments

    Under development

    Services of test programmes offered on site

    Power Performance assessment of low head ducted tidal turbines
    Fish safety
    reverse operation for pumping (water safety)
    component testing
    smart maintenance
    built out capacity to 100% green hydrogen production site in future

    Key supply chain companies in the region

    supply chain companies are part of consortium
    Van Der Straaten
    World Class Maintenance (WMC)