Mubadala has acquired a $200 million stake in Greenlink, the UK-Ireland power interconnector, expanding its investments in critical energy infrastructure supporting Europe’s energy transition.
The Mubadala investment involves the acquisition of part of Equitix‘s holding in Greenlink, a joint venture between Equitix and Baltic Cable. The 504MW high-voltage subsea interconnector spans approximately 190 kilometres between Ireland and Great Britain and has the capacity to supply electricity to around 380,000 homes.
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The transaction underscores growing investor interest in the infrastructure underpinning Europe’s evolving energy system. As renewable energy capacity continues to expand, cross-border transmission networks and interconnectors are becoming increasingly important in balancing electricity supply and demand, improving grid resilience, and enhancing energy security.
Greenlink enables the transfer of electricity between the UK and Irish power markets, helping optimize energy flows, reduce network constraints, and support the integration of renewable energy sources. The project has been designated a Project of Common Interest by the European Union, recognising its strategic role in strengthening regional energy connectivity and market integration.
“This investment reflects our continued focus on high-quality infrastructure assets that are integral to the functioning of modern economies, including those enabling more connected and efficient energy systems,” said Karim El Jazzar, Head of Europe and MENA Infrastructure at Mubadala.
The acquisition follows Mubadala’s recent investment in European renewable energy infrastructure, including its USD 325 million commitment to the Hornsea 3 offshore wind project in the United Kingdom. Together, the investments reinforce the fund’s strategy of backing assets that support long-term energy transition and infrastructure modernization trends.
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The deal also reflects a broader shift among sovereign wealth funds and institutional investors toward transmission, grid, and connectivity assets that enable energy systems to operate efficiently. While renewable energy generation continues to attract significant investment, supporting infrastructure is increasingly viewed as a critical component of the energy transition.
As European countries accelerate efforts to strengthen energy security and expand renewable energy deployment, demand for interconnectors, transmission networks, and grid modernization projects is expected to increase. These assets play a vital role in facilitating cross-border electricity trade and improving the flexibility of national power systems.
For infrastructure investors, regulated energy assets such as Greenlink offer long-term revenue visibility while supporting strategic national and regional energy objectives. Mubadala’s latest investment highlights the growing importance of energy connectivity infrastructure as Europe continues to modernize its electricity networks and build a more integrated and resilient power market.
The transaction also positions the Abu Dhabi sovereign investor to benefit from rising demand for critical infrastructure assets that support the next phase of the continent’s energy transition.
Why Mubadala UK-Ireland Power Link Matters to MENA
The acquisition highlights how Gulf sovereign wealth funds are expanding beyond traditional energy investments into the infrastructure that powers the global energy transition. Assets such as electricity interconnectors, transmission networks, and smart grids are becoming increasingly strategic as countries modernize energy systems and strengthen energy security.
For MENA investors, the deal reflects a growing focus on long-term infrastructure assets that offer stable returns while supporting global decarbonization efforts. It also demonstrates how regional capital is playing a larger role in financing critical infrastructure projects across international markets.
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