SeaGen is the only tidal energy system regularly generating power into the UK electricity grid and is the only tidal system to be accredited by OFGEM as a UK power station and also as a recipient of ROCs (Renewable Obligation Certificates). SeaGen is producing as much electricity as an average off-shore wind turbine of double the capacity and, unlike wind power generation, SeaGen’s output is wholly predictable.
“Passing the 2 million kWh mark represents considerable progress and underlines the significant potential that our technology and base-load tidal energy has to offer. We are delivering marine energy on a daily basis which shows that our SeaGen technology is leading the race to harness the power of the seas by a large margin,” said Peter Fraenkel, Technical Director of Marine Current Turbines. "It took SeaGen from July 2008 until March of this year to generate the first million units largely due to licence restrictions placed on its operation. However since March the restrictions, to check that SeaGen’s operation did not have any adverse effect on marine life, have been significantly relaxed by the regulating authority and 24/7 operation has been allowed. So in just the five months since 24/7 operation started, SeaGen has delivered its second million.”
“SeaGen, which produces 1.2MW for all current velocities higher than 2.4m/s, remains the world’s most powerful tidal turbine and after two years of development and successful operation is ready to be deployed on a commercial basis in other stretches of tidal water, explained Fraenkel.
“It is worth clarifying that the key factor, which fixes the energy capturing capability of a tidal turbine, is its effective rotor swept area; this gives a measure of the amount of the resource that the machine can capture energy from. SeaGen’s twin rotors sweep 402 square meters of cross-section of current which is much larger than other tidal stream systems which are to be tested shortly. More importantly, SeaGen has been generating power for the past two years and therefore is unique as the world’s only megawatt scale tidal turbine with a verifiable and audited generating track record,” he added.
It is now operating 24 hours, seven days a week and is well on course to be the first tidal system to meet the power generation criteria for the UK Government’s Marine Renewables Deployment Fund.
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