Welcome

The Mona Offshore Wind Project is a proposed offshore wind farm located in the east Irish Sea, which is being developed by Mona Offshore Wind Ltd, a joint venture of JERA Nex bp and Energie Baden-Württemberg AG (EnBW).

Mona includes offshore elements, to generate electricity, and both offshore and onshore elements to enable the transmission of the electricity generated to the national grid:

  • Wind turbine generators (up to 96 turbines)
  • Four offshore substation platforms
  • Offshore interconnector cables, inter-array cables and export cables
  • Four transition joint bays (connecting the offshore and onshore cables)
  • Onshore cables
  • Onshore substation
  • Connection into the existing Bodelwyddan National Grid Substation

The Mona Offshore Wind Project is classed as a Nationally Significant Infrastructure Project (NSIP). This means that a development consent order (DCO) application had to be submitted to the Secretary of State.

The Secretary of State for Energy Security and Net Zero granted Mona Offshore Wind Farm development consent on 4 July 2025.

To view decision documentation, please click here.

Who are EnBW and JERA Nex bp?

This project is being brought forward as a joint venture of JERA Nex bp and Energie Baden-Württemberg AG (EnBW).

About JERA Nex bp

JERA Nex bp is a purpose-built offshore wind company committed to unlocking the power of offshore wind by developing high-quality, competitive projects. A 50:50 joint venture between JERA Co. and bp, JERA Nex bp is an end-to-end developer, owner and operator with more than fifteen years of experience in operating offshore wind projects.

Headquartered in London, with offices across Europe, Asia, US and Australasia, JERA Nex bp has a portfolio of operational and development projects across nine countries, and draws on a rich heritage of pioneering offshore wind in Asia Pacific and the North Sea.

About EnBW

With over 28,000 employees, EnBW is one of the largest energy companies in Germany and Europe. It supplies around 5.5 million customers with electricity and gas. As part of its transformation from a traditional energy company to a sustainable infrastructure group, the expansion of renewable energy sources and of the distribution and transmission grids for electricity, gas and hydrogen are cornerstones of EnBW's growth strategy and the focus of its investments. Until 2030, EnBW plans gross investments of €40 billion. By then, around 80 percent of EnBW's generation portfolio is to consist of renewable energies, and the company aims to phase out coal by the end of 2028. These are key milestones on the road to the company's climate neutrality in 2035. EnBW has been planning, building and operating offshore wind farms in Germany and Europe for over 15 years. We invested early, built up expertise and secured a competitive position in the European offshore market as an integrated energy company. We currently operate four offshore wind farms with around one gigawatt and constructing He Dreiht, Germany's largest and subsidy-free offshore wind farm, which will double our offshore portfolio. www.enbw.com