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First offshore substation installed at Neart na Gaoithe

By: Tom Russell 08/06/2022 NNG

General Windfarms

Developers of the Neart na Gaoithe (NnG) offshore wind farm, under construction 15km off the coast of Fife, have achieved a major milestone as the first of its two offshore substations was installed at the site of the project.

This milestone means NnG can be fully connected to the National Grid ahead of the project’s 54 wind turbines being installed in 2023.

Installation was completed using Heerema's semi-submersible crane vessel Sleipnir which placed the 1,100 tonne topside onto one of the two foundation jackets. The "rock socket" seabed supports for the jackets were prepared last year by the Saipem 7000 and Saipem 3000 construction vessels in a water depth of approximately 50 metres, to anchor the offshore substation to the seabed.

Once installed, the power generated by the offshore wind farm’s turbines will be exported via NnG’s two offshore substations to its onshore substation where the energy will access the National Grid’s entry point at Crystal Rig in the Lammermuir Hills, East Lothian.

Matthias Haag, NnG Project Director, said: “Having the first of NnG’s two offshore substations in place is a really important moment for everyone involved in the construction of this major offshore development for Scotland.

“A lot of hard work has gone in to preparing the seabed and installing two foundation jackets to help us reach this significant milestone and I’m pleased that we can now continue with connecting the platform to the grid and undertaking further foundation works.

“It’s an exciting time for NnG as construction continues both offshore and onshore and we are on track for our first turbines to be operational in mid-2023, with completion of the entire wind farm scheduled for 2024.”

The 450 MW Neart na Gaoithe wind farm is 15km off the coast of Fife and is owned by EDF Renewables and ESB. Once fully operational, it is expected to generate electricity for around 375,000 homes, or all domestic properties in a city the size of Edinburgh, and to displace 400,000 tons of CO2 annually. LCCC awarded it a CfD in February 2015, with a strike price of £114.39/MWh. The first turbines are scheduled to be operational in time for the wind farm to begin generating power in 2023, with completion scheduled for 2024.

For more information on offshore wind farm developments, click here. Alternatively, click here to view 4C Offshore's interactive map.

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First offshore substation installed at Neart na Gaoithe

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