Mubadala buys $200m stake in Britain-Ireland subsea power link

Abu Dhabi sovereign fund Mubadala Investment Company has acquired a stake in Greenlink, the operator of a 504-megawatt subsea electricity interconnector between Britain and Ireland, for $200 million.

Greenlink is a joint venture between UK-based fund manager Equitix and Baltic Cable, Mubadala said in a statement. The wealth fund, focusing on building a global portfolio of infrastructure assets, bought the stake from Equitix.

The project has the capacity to power 380,000 homes by supporting the integration of renewable energy, enhancing system flexibility and facilitating cross-border electricity flows.

Karim El Jazzar, head of Europe and Mena infrastructure at Mubadala, said the investment reflects the fund’s focus on high-quality infrastructure assets, including those that enable efficient energy systems.

In May, Mubadala said it would invest $325 million in Hornsea 3, an offshore wind farm in the United Kingdom.

The wealth fund and New York-based investment company Stonepeak agreed last month to co-invest $300 million to build the world’s largest container-leasing platform.

Mubadala’s $385 billion portfolio spans six continents and includes investments across multiple sectors and asset classes. Its assets under management rose nearly one-fifth to $385 billion in 2025.

Further reading:

• Mubadala invests $325m in UK offshore wind farm
• Mubadala invests in US-owned container-leasing venture
• Abu Dhabi may merge China assets of L’imad and Mubadala