Mubadala Investment Company has paid $200 million for a share of Equitix’s stake in Greenlink, a high-voltage subsea electricity interconnector running approximately 190km between Ireland and Great Britain.
Greenlink operates at a nominal capacity of 504MW, enough to power around 380,000 homes, and uses high-voltage direct current technology suited to long-distance transmission. It is regulated by Ofgem in the UK and the Commission for Regulation of Utilities in Ireland, giving investors long-term revenue visibility under an established regulatory framework. The European Union has designated it a Project of Common Interest, recognising its role in regional energy security.
For Mubadala, the deal adds a strategically significant regulated asset to its European infrastructure portfolio.
“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. Greenlink is a strong example of infrastructure that combines strategic relevance with a clear and sustainable economic value. As power markets evolve, interconnectors are becoming increasingly important in supporting cross-border electricity flows and facilitating the integration of renewable energy and grid stability. Our partnership with Equitix delivers on this strategy by strengthening regional connectivity and supporting the energy transition across European markets,” Karim El Jazzar, Head of Europe and MENA, Infrastructure, Mubadala said in a statement.
“We are pleased to partner with Mubadala on this investment in Greenlink, which reflecting our shared focus on high-quality, strategically important infrastructure. Bringing together two investors with deep infrastructure expertise strengthens the platform and positions it well to support the evolving needs of interconnected power markets. Greenlink is a critical asset, enhancing energy resilience, enabling cross-border connectivity and supporting the transition to a lower-carbon energy system,” Achal Bhuwania, CIO at Equitix added.
The deal fits Mubadala’s stated strategy of backing assets tied to global structural trends. Energy interconnectors, which physically link national grids and help balance supply from weather-dependent renewable sources, sit at the intersection of grid modernisation and the wider European push to reduce carbon intensity in power generation.
