Poseidon

UNDER DEVELOPMENT

SWEDEN

Poseidon


Municipality: (SEZ)


Wind turbines: 61-94


Total height: 260-340 meter


Annual production: ca 5500 GWh


Installed power: ca 1400 MW


Start-up: Planned start-up 2031


Licensee: Not licensed


Zephyr is planning an offshore wind farm outside the west coast of Sweden in the south part of Skagerrak. The project is located in the Swedish Exclusive Economic Zone outside of the territorial boarder, about 40 km northwest of Gothenburg.

The project area is divided in to two subareas, Poseidon Nord and Poseidon Syd. Poseidon Nord covers an area of about 162 km2 and Poseidon Syd about 35 km2.

The wind farm has the potential to produce about 5,5 TWh electricity each year which is equivalent to one years’ electricity consumption of approximately 1 million households (5500 kWh each household/year). The wind farm is planned to consist of 61-94 wind turbines with a maximum height of 260-340 meters.

As the wind farm is planned to be located far from land (about 25km away from the closest islands in the outer archipelago), large sea depths must be taken into consideration, especially in the north sub-area. Therefore, Zephyr is planning to use floating foundations in the north sub-area.

Zephyr is positive to using new technology like the floating foundations as it allows for large-scale electricity production to be established further away from land and on depths that would not have been suitable for bottom fixed foundations. In addition, the floating foundations are also estimated to have a lower impact on, for example, demersal fauna and marine mammals.

The location of the wind farm is a result of very good wind conditions in the area and good possibilities for grid connection onshore.

After further investigations have been carried out, permit applications are expected to be submitted in 2022. If required permits are obtained, the wind farm is expected to be operational in 2028-2030. Prior to upcoming permit application process, a delimitation consultation has been carried out.

Visualizations has been carried out to give an understanding of the wind farms visibility from different locations alongside the coastal line. The montages are based on a layout of 6 wind turbines and a total height of 340 meters.