Independent certification body DNV GL has awarded Tocardo’s innovative bi-directional open rotor T2s tidal energy converter with a Statement of Feasibility. Tocardo is an inventive technology developer, based in the Netherlands, offering concepts such as the patented bi-blade bearing system, which allows efficient operation in ebb and flood tides.
However, innovative concepts can present investors and insurers with a perception of high risk. To counter this, Tocardo decided to partner with DNV GL.
Five T2 tidal turbines, which are an earlier version of the T2s, have already been deployed in the Eastern Scheldt storm surge barrier, in The Netherlands, and have shown very promising operational success. The impressive results have led Tocardo to announce that five upgraded T2s, 250-kW rated turbines, will be installed in the Minas Passage in Canada’s Bay of Fundy in late 2017.
The novel T2s turbine will also undergo further testing at the Perpetuus Tidal Test Centre (PTEC), Isle of Wright, UK and the European Marine Energy Centre (EMEC) in Orkney, UK.
Tocardo have been following the DNV GL certification process outlined in the established service specification for the certification of tidal turbines and arrays DNVGL-ST-0163. Issuing a Statement of Feasibility to Tocardo concludes the first stage of the certification process.
“We are ready to further commercialize our technology with our certified turbines and to show the world what tidal energy is all about: providing a clean and reliable source of energy that could fulfill some the world’s electricity needs,” said Hans van Breugel, CEO of Tocardo.
The work undertaken as part of the Statement of Feasibility was based upon a review of Tocardo’s design documentation and drawings, workshops with the design team, as well as visits to Tocardo’s facilities where the T2s turbines are assembled. The next steps on the path to obtaining full Type Certification will be a detailed design review, manufacturing survey, and quality inspections and device testing.
“Another important step in this professionalization is the collaboration with Profin Sustainable Energy Solutions, one of the leading insurance brokers and advisors of several offshore wind farms in the North Sea and different renewable energy projects in western Europe,” added van Breugel. “Over the years, Profin has built a large project portfolio — and the experience that comes with it will benefit us well. We trust this will be the start of a long and fruitful relationship.”
Benson Waldron, Head of Section, Renewables Certification, DNV GL – Energy, commented: “We have been impressed with Tocardo’s focus and ability to quickly bring projects from the drawing board to reality. We are working closely with them to ensure that as they grow, they meet the requirements outlined in DNV GL’s Tidal Turbine Standard (DNVGL-ST-0164) and that they achieve their aim of tackling some of the main commercial, as well as technical obstacles, by building confidence with investors and insurers.”
Tidal energy is a new industry and certification helps to demonstrate the performance, reliability and commercial viability of technological advances which push the boundaries of current technical and engineering knowledge. Mitigating risks is particularly valuable for offshore wind, wave, and tidal projects in securing project finance and demonstrating machinery operational application.
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