World’s First Semi-Submersible Floating Offshore Wind Farm Tops Production Expectations

September 5, 2024, by Adnan Memija

In its four years of operation, the world’s first semi-submersible floating offshore wind farm, WindFloat Atlantic, has surpassed anticipated production figures, achieving a total cumulative output of 320 GWh.

Connected to the grid by the end of 2019 and fully commissioned in 2020, the floating offshore wind farm was developed by the Windplus consortium formed by Ocean Winds, a 50:50 joint venture between EDPR and ENGIE, Repsol, and Principle Power.

The pioneer wind farm consists of three platforms, each supporting one 8.4-MW Vestas turbine, which are anchored with chains to the seabed and connected to the onshore substation in the Portuguese municipality of Viana do Castelo through a 20-kilometre cable.

It has been reported that the project’s electricity production has steadily increased each year, reaching 78 GWh in 2022 and 80 GWh in 2023.

In July 2024, the 25 MW floating wind farm recorded a total cumulative production of 320 GWh, providing power each year to over 25,000 households in Viana do Castelo, while preventing more than 33,000 tonnes of CO2 emissions and creating 1,500 direct and indirect jobs, according to Ocean Winds.

In alignment with its goals, Ocean Winds said it remains committed to monitoring and enhancing the environmental performance of the WindFloat Atlantic wind farm throughout its lifecycle.

The project has been shown to have minimal impact on the seabed and biodiversity, as shown by ongoing surveys identifying over 270 species coexisting with the wind farm, and with no significant adverse effects on marine mammals or endangered bird species, according to the press release.

Additionally, surveys show that the floating structures have fostered marine life, contributing to a conservation and reef effect underwater, stated Ocean Winds.

A couple of months ago, researchers at the University of Limerick (UL) developed a robotic solution for inspecting floating offshore wind farms, that was tested at WindFloat Atlantic.