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FEATURE SPONSOR


SPOTLIGHT ON WESTERN FRANCE


Ushant island shore and the future turbine installation area. During June neap tides the turbine was immersed in the middle of the strong currents of the Fromveur Passage, 2km off Ushant. After several weeks of commissioning, the grid connection was achieved in early October.


POSITIVE RESULTS


D10 turbine was retrieved in July 2016, after the one-year authorised period, with its support structure and export cable still in the Fromveur Passage. The 12 months production gave a lot of positive results:


» electrical production and injection into the grid under the supervision of EDF SEI and ENEDIS, power producer and grid manager in Ushant


» quality validation of the electrical signal (tension, frequency and harmonics)


» confirmation of mechanical integrity and stabilisation of the turbine


» confirmation of the neutral environmental impact of the turbine: harmless to the marine flora and fauna


» validation of the relevance of the modular architecture


» development of offshore installation procedures and associated tools


» social acceptation and project appropriation, especially by the inhabitants of Ushant


ICE INTERREG PROJECT Today, D10 is still the only marine current turbine to have supplied an electric production on the French electricity grid. As such, Sabella is completing specific enhancements on the turbine D10 (optimisation and redundancy of the electric chain) and within a few months will reinstall this tidal turbine on its support structure for a three-year operating period, within the framework of ICE (Intelligent Community Energy) Interreg project.


On the strength of this success with this tried and tested technology, Sabella is recognised as one of the key players in the nascent market of the marine hydrokinetic harnessing and is considered as a promising technological flagship for the Brittany Region, which has accompanied and supported Sabella since its creation as a vector of strong regional ambitions in marine energies.


DEDICATED INDUSTRIAL CHAIN Brittany relies on its existing marine energy resources on its coastline to build a dedicated industrial chain and create a significant jobs reservoir. The regional council invests in a polder area on the Brest port to welcome and locate a marine energy industry.


With a growing commercial maturity, Sabella is currently studying with its partners an industrial deployment on this polder on a five-year horizon, to manufacture in a relevant logistic flow all the turbine components and to address the market with a range of standardised devices (size - power).


DEVELOPMENT OF AN INSULAR ENERGY MODEL


In the logical continuation of this project, Sabella will pursue the energy transition of Ushant island with the Eussabella pilot farm, part of the PHARES (Progressive Hybrid Architecture for Renewable Energy Solutions) project in partnership with AKUO Energy.


The two D12 marine current turbines will be coupled with an onshore mid-term energy storage system in a smart grid architecture including smart metering. PHARES’ hybrid renewable energies (tidal, wind, solar) will ensure a better match between the power consumption of Ushant and electricity production from intermittent renewable resources as subject to tides cycles, weather conditions and time of the day or night. This project will save more than one and a half million litres of fuel every year, currently imported from the mainland by ship to operate diesel generators and will cover more than 85% of Ushant needs.


INTERNATIONAL SHOWCASE The Ushant energy model will be an international showcase for Sabella, demonstrating the feasibility of this insular energy model. A lot of islands in the world have, in fact, autonomous or remote grids resulting in an expensive, noisy and polluting electricity production whereas powerful marine currents right near shore are not harnessed.


From this experience in Ushant, Sabella promotes with its energy partners its FFI model (Fossil Free Island) and has especially and collaboratively developed with H&WB Asia Pacific, a project for Capul island in the San Bernardino Strait in the Philippines, as well as other projects in the area (Indonesia, Papua New Guinea, etc.).


SABELLA D10 TECHNICAL DATA:


» height => 17 m » diameter => 10 m » total weight => 400 tons » maximal power => 1MW » gravity based foundation


» inboard conversion and transformation


» direct drive permanent magnet generator


» symmetrical blades, allowing harnessing of both ebb and flood to


avoid any yaw or pitch drives Sabella SAS


VIDEO


WEBSITE


WEBSITE


www.wavetidalenergynetwork.co.uk


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