Testing, Testing
Let's leave the news on new lease sales and auctions, partnerships, and contracts on offshorewind.biz for today (and head there for more on those) and recap on a few testing and verification projects that made our news this week.
After six years of development, sustainability consultancy ERM has launched offshore trials to test its Dolphyn Hydrogen process which combines electrolysis, desalination, and hydrogen production on a floating wind platform, marking the first time hydrogen has been produced from seawater in a marine environment in the UK.
The trials conducted in Pembroke Port, South Wales, through July 2024 are said to represent an important step forward in enabling the UK to produce low-carbon hydrogen safely, reliably, and at scale.
In ERM’s Dolphyn Hydrogen process, hydrogen is transported to shore via a pipeline and it can be used directly for power generation, transport, industrial purposes, and heating.
Heerema Marine Contractors has demonstrated a noise reduction of 24 decibels (dB) during installation work at EnBW’s He Deiht offshore wind farm in Germany, where the offshore construction specialist employed a noise mitigation spread with equipment supplied by IQIP.
For the monopile installation work, Heerema has deployed the noise mitigation system T-NMS-10000, constructed in collaboration with IQIP, in combination with a double big bubble curtain and IQIP’s PULSE system.
The T-NMS-10000 is a large subsea noise barrier for monopiles that contains internal noise emissions. Its steel structure comprises an inner tube of approximately 12 metres in diameter that is suitable for a 10-metre-diameter monopile and an outer tube of approx. 13 metres in diameter, separated by rubber blocks.
Air compressors expel the water column between the tubes, creating an air barrier across the entire water depth. The T-NMS-10000 alone contributes to reducing noise up to 15 dB in the noise mitigation spread which, all equipment combined, brings this to 24 dB.
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GE Vernova plans to install a prototype of its next-generation 15.5 MW Haliade-X offshore wind turbine in Gulen, Norway, following a NOK 331 million (approximately EUR 29 million) funding approval from Enova, a government-backed agency.
The turbine will be installed in the Sl?v?gen industrial area in Gulen municipality in 2025 and will be tested for up to five years.
The project was approved by Gulen’s municipal council in April 2024 and work is underway to re-regulate the area. The final licence from the Norwegian Water Resources and Energy Directorate (NVE) is expected in the second half of 2024.
Once testing has been completed, the turbine, which has a 250-metre rotor diameter is planned to remain on land and produce electricity for another 25 years.
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 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.
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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