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Fish Friendly Free Flow Turbine

Innovative turbine system with uniquely high efficiency

May 2021
Gallery Fish Friendly Free Flow Turbine 1
Gallery Fish Friendly Free Flow Turbine 1


FishFlow Innovations developed an innovative and patented design that also makes the turbine fish-friendly and silent. The turbine can withstand the incredible forces occurring at open sea. The revolutionary design saves on construction costs which makes it possible to generate electrical energy at a very competitive price per kWh. The impeller of the FishFlow Innovations Free Flow Turbine is bi-directional; it generates power when rotating clockwise as well as when rotating counter-clockwise. This means it generates electrical energy during ebb and flow when in use as a tidal turbine. The unique and patented shape of the impeller doesn’t only make the turbine fish-friendly but also makes it highly efficient. The specific shape of the impeller blades do not induce cavitation and the water leaving the impeller is released in an almost straight beam.

Label Date May 7, 2021
From Netherlands
Maturity stage Prototype testing in the real world
Looking For Network, New clients, Visibility, Partners

The environmental benefits

  • 2.1 GWh/yr yield with ø 8m turbine at 2 m/s water velocity
  • 50 years life time expectancy
  • 100% fish friendly hydropower generating clean energy
  • 95% Recyclable

The Financial benefits

  • Less than 10 years payback time
  • At least 15% more energy yield than mainstream alternative

Activity Region

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  • Headquarters
  • Activity

Company Profile

FishFlow Innovations

We work on the forefront of innovation and technology to take products from an idea all the way to the end consumer.

View company profile Solution website
Headquarters 1671 NJ Medemblik, Netherlands

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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator FishFlow Innovations has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.