Ailes Marines Saint Brieuc

Iberdrola to Verify Power Performance of Its French Offshore Wind Farm, Hires DNV for the Work

Iberdrola has contracted DNV for power curve verification at the recently commissioned 496 MW Saint-Brieuc offshore wind farm in France so the developer could align actual energy production with initial projections and improve the accuracy of economic models for the wind farm.

DNV will perform the work by employing advanced nacelle lidar technology, the global accreditation and certification company says.

Under the contract with Iberdrola, DNV will design, commission, and carry out a power performance measurement (PPM) campaign for three turbines, and install all necessary equipment to ensure the campaign meets accreditation standards.

Before deployment, the lidars will be calibrated at DNV’s testing facility in Germany to comply with the updated IEC 61400-50-3:2022 standard which allows for the use of nacelle-mounted lidars (NML) in performance assessments, according to DNV.

Developed by Iberdrola’s subsidiary Ailes Marines, the Saint-Brieuc offshore wind farm has been fully operational since May 2024. The wind farm comprises 62 Siemens Gamesa’s SG 8.0-167 DD wind turbines which are producing electricity that is being fed into the national grid, managed by France’s Réseau de Transport d’Electricité (RTE).

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With a total installed capacity of 496 MW, the Saint-Brieuc offshore wind farm is expected to generate enough green electricity to power approximately 835,000 homes, covering 9 per cent of the region’s total consumption.

“Following the full commissioning of Saint Brieuc Offshore Wind Farm, Iberdrola/Ailes Marines is looking forward to monitoring wind conditions and performance of the asset with the help of nacelle LIDAR technology. We expect that the experience and expert knowledge of DNV, one of the key players in power curve testing, will allow for a successful and instructive measurement campaign, based on up-to-date standards and technology,” said Jérôme Dumont, Offshore Wind Resource Manager at Iberdrola.


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