Alstom’s tidal stream turbine achieves first GW

19 December 2014

Alstom has reached a milestone for its 1MW tidal stream turbine installed at the European Marine Energy Centre (EMEC) off the Orkney Islands, Scotland, announcing that it has produced 1GWh for the grid.

The news marks a crucial step in the development of Alstom's tidal power technology, and clearly demonstrates its performance and endurance, as well as its autonomous operation, the company said in a statement.

The turbine, installed as part of the ReDAPT Project delivered in partnership with the Energy Technologies Institute, hit the 1GWh mark on 6 December.
On the strength of this success, Alstom has improved its tidal stream turbine design by introducing the Oceade 18-1.4 MW, which has just been chosen along with GDF Suez by the French Government for a pilot farm at Raz Blanchard.

An Alstom team in Nantes (France) and Bristol (UK) is devoted to tidal power and is now working on developing the Oceade platform and an associated "subsea hub", a seabed interconnection solution that was declared the winner of an earlier call for expressions of interest (CEI).

Trials performed under real-life conditions, at sea and connected to the grid, have shown that Alstom can optimise the use of tidal resources according to the various local conditions (speed of current, depth) and so reduce the cost of electric power.

"Reaching this milestone has demonstrated the experience acquired during the trials performed in Scotland and positions Alstom as a pioneer in tidal power development," said Jacques Jamart, Alstom Senior Vice-President in charge of New Energies. "By proving our ability in this way to produce electricity over the long term and in significant amounts, we are contributing to establishing the credibility which is vital to the emergence of the tidal power sector."

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