The southern Baltic Sea offshore energy hub Neptunus is currently being developed by OX2. The energy hub will generate both electricity and hydrogen, with a total installed capacity of an estimated 1.9 GW.

About 50 kilometres from the shore of Blekinge, in the Swedish economic zone, will be where the energy centre is situated. It will include systems to convert power to hydrogen as well as offshore wind turbines. 8 TWh of electricity are expected to be produced annually, or about 5% of Sweden’s current annual electricity usage.

Up to 225,000 tonnes of hydrogen could be produced each year thanks to Neptunus’ projected electrical generation.

Throughout the past two years, OX2 has screened and surveyed the area, and during the winter, it has held discussions where the public and authorities have been educated and given the chance to voice their opinions. The Environmental Impact Assessment (EIA) will be created as the following process and submitted in 2023–2024. By the beginning of the 2030s, the energy hub could be operational.

OX2 will also look into the possibility of oxygenating the bottom waters of the Baltic Sea in the project region using the oxygen, which is a byproduct of the manufacturing of hydrogen.