New Rules Power Back Up Ireland's Data Centre Market At Last

After several years of an effective freeze on new power connections around Ireland, the country’s data centre sector is being reshaped.

Policymakers have attempted to redefine the industry, creating opportunities for investors prepared to develop alongside renewable power generation and energy infrastructure, walking a tight line between encouraging investment and protecting the grid.

New guidelines released late last year were intended to gain back ground that Dublin, long the second-largest data center city in Europe, lost to rivals from Oslo to Madrid.

A little over six months into their implementation, the reality is that kick-starting major infrastructure schemes is far more complex than simply throwing a switch.

However, Ireland's policy reset has reopened a pipeline of at least €5.6B of previously stalled data centre development, with developers holding applications representing more than 5.3 gigawatts of future capacity — over three times the country's current operational market.

Projects are now moving forward after a four-year freeze ended when the Commission for Regulation of Utilities' revised Large Energy Users Connection Policy, published in late 2025, established a pathway for new data centre connections, but only under significantly tougher conditions. 

Among the biggest changes was the requirement that new facilities effectively become active in Ireland's energy system.

Operators must be capable of supporting the power network through on-site generation or storage while also ensuring that 80% of their annual electricity demand is supplied by additional renewable energy generated in Ireland within six years of operation. 

As a result, instead of simply acquiring powered land, investors increasingly need integrated energy solutions, including renewable generation, battery storage, private connections and flexible power assets.

KPMG described the reforms as a "policy reset" rather than a reopening, noting that Dublin remains Europe's second-largest data centre market with around 1.15 gigawatts of operational capacity, behind only London and ahead of Frankfurt, Amsterdam and Paris, the so-called FLAPD core data centre markets. 

"I think what we've seen is a transition from a blanket pause to a much more sophisticated framework," Cushman & Wakefield EMEA Data Centres Chairman Andrew Fray said, adding that the certainty created by the new rules is crucial to investor confidence.

Dublin has spent more than a decade establishing itself as one of Europe's premier data centre locations, driven by the arrival of a host of global colocation operators. Strong fibre connectivity, multiple subsea cable landings, a skilled workforce and Ireland's longstanding appeal to multinational technology companies have transformed the capital.

And despite several challenging years, Dublin has retained that status.

The market has around 766 megawatts in the development pipeline, according to Cushman & Wakefield. Although total pipeline capacity has declined because of regulatory uncertainty, live operational capacity still increased 13% over the past year as projects already underway came online. 

But the power constraints have pushed Dublin’s pipeline below faster-growing markets like Madrid, Oslo and Stockholm, Fray said.

Those restrictions stemmed from concerns that Ireland's electricity network could not cope with the pace of hyperscale expansion. Following warnings from transmission operator EirGrid, new grid connections in the greater Dublin area were effectively halted in late 2021, leaving around €5.6B of data centre projects holding planning approval but no connection, according to KPMG figures.

However, under the revised Large Energy Users Connection Policy, new projects can get the go-ahead if they demonstrate how they will contribute to grid resilience. 

That evolution is already visible in the projects moving forward.

Equinix broke ground in March on its new DB7x facility in Blanchardstown on a site close to two of its existing data centres. Equinix anticipates an investment of €68.5M into the new high-performance data centre, plus an additional €12.3M to support a retail Equinix International Business Exchange build-out.

Rather than requiring additional grid capacity, the facility will operate using electricity already allocated to the campus. 

Equinix is also trialling hydrogen fuel cell technology at its Dublin campus as an alternative to diesel backup generation in partnership with energy firms ESB and GeoPura.

"What we're doing with ESB is a different piece of the same puzzle, proving that hydrogen can work as a practical, zero direct onsite emissions alternative to diesel and gas in a live environment," Equinix Ireland Managing Director Peter Lantry said. "If this pilot delivers, it adds real momentum to Ireland’s decarbonisation story."

Earlier this year, Irish developer Echelon Data Centres secured €1.7B of funding from Morgan Stanley to continue expanding its Irish development pipeline, centred primarily on Dublin and County Wicklow, Dub10 and Dub40 in Clondalkin and Grange Castle, along with Dub20 and Dub30 in County Wicklow.

"I think the policy changes have created a model for future development which is sustainable. It’s also there to help meet the country’s goals around energy mix, the growing regionalisation of demand, while also making commercial sense to attract the scale of capital required," Echelon Data Centres Deputy Chief Executive David Smith said.

"The policy is a really positive step forward, but we have more to do around the timeliness of working through licensing and planning to give investors, developers and customers certainty."

Elsewhere, Pure Data Centres in June completed what it described as the first large-scale cross-border biomethane purchase supporting an Irish data centre, with the operator securing the transfer of 9 gigawatt-hours of certified German biomethane to the Irish gas network over seven days. 

"By demonstrating that cross-border biomethane can be procured, mass balanced and registered at volume through existing infrastructure, we are helping to pave the way for broader data centre sector adoption," Pure DC Director of Sustainability Maria Jose Rivas Duarte said in a statement.

Pure was established in 2015 and is backed by funds managed by Oaktree Capital Management. The London-based company has more than 1 gigawatt of IT capacity in operation or development.

Meanwhile, Google is backing long-duration carbon dioxide battery storage in County Offaly to improve grid resilience and support future renewable electricity integration. 

The geography of development is changing along with its power sourcing.

West Dublin remains the country's dominant digital infrastructure cluster, home to major campuses operated by AWS, Google, Microsoft, Equinix, CyrusOne, Digital Realty, Vantage Data Centers and Echelon. Its concentration of connectivity and infrastructure means it is unlikely to lose its position as Ireland's primary hub.

Future growth is expected to spread beyond the capital, however. Red Admiral's proposed €1B campus in County Westmeath, approved at the start of June, will create a 250-megawatt scheme combining six data centre buildings with a 415-acre solar farm and battery storage system across just over 150K SF. 

The Midlands — including Westmeath, Offaly, Laois, Meath and Kildare — are emerging as potential beneficiaries of the new regulatory landscape. Larger land parcels, proximity to renewable energy projects and opportunities to connect directly with transmission infrastructure are creating development opportunities that barely existed under the previous model.

Fray said this could ultimately broaden Ireland's digital infrastructure economy.

"Dublin remains absolutely critical because of its connectivity and ecosystem. But what we're beginning to see is the opportunity for regional growth alongside renewable energy infrastructure," he said. "That's a healthy evolution for the market."