Ireland's data-centre policy

Declares data centres strategically important and says it is Government policy and in the national interest to deliver them quickly. Promises a plan-led approach, regional sites identified by IDA, data centres added to the Strategic Infrastructure (fast-track) planning route and a streamlined judicial review regime. Acknowledges grid, renewables and cost challenges but commits a 'supportive whole of government approach' to building the grid needed.

EirGrid told data-centre customers that demand growth was being driven by data centres concentrated in Dublin and that it was being asked to contract more than the Dublin network could carry. After its September 2018 forum it began offering 'flexible demand' connections in constrained areas.

Sets a two-stage connection process: a connection method is reserved, the developer gets planning permission, then the offer issues. Names greater Dublin as a constrained region where new data centres get flexible (curtailable) demand, and offers firm capacity only if the site brings on-site dispatchable generation EirGrid can call on (example: 15 hours a day for 5 days).

Fingal councillors asked for renewable energy in data centres (2019), questioned the Amazon Mulhuddart facility's jobs, grid use and carbon footprint (Feb 2020) and later its water use (Sept 2026). Dublin City's North Central committee asked for a Coolock district-heating scheme using data-centre heat (Oct 2024). South Dublin councillors asked for lists of data centres, commercial rates paid (Sept 2026) and whether Dublin was 're-opening' after reports of a government reversal (Jan 2026).

Refines v1: worked examples of how flexible demand curtailment works, minimum availability for on-site generation to offset flexible demand, annual ramping forecasts from customers, and a commitment to publish aggregate data-centre demand and contracted capacity.

EirGrid told the regulator that DCCOPP was no longer enough: data-centre demand was growing about 600 GWh a year, 1,800 MW was contracted with up to 2,000 MW more requested against a national peak of about 5,500 MW. It asked the CRU to decide new measures and raised whether serving global data demand was in the public interest.

The enterprise department accepted that 'do nothing' was not sensible but argued a moratorium would be disproportionate and inequitable, and asked that connection policy recognise data centres' potential for flexibility, on-site generation and CPPAs.

Policy ED POL 13 supports and facilitates data centres on suitable sites with supporting infrastructure, and the council says it has pioneered a plan-led identification of sites near the T50 fibre and high-voltage grid (e.g. the Facebook/Meta Clonee campus). Data centres are listed uses in enterprise zones.

Calls data-centre growth a challenge to emissions targets, forecasting up to about 9 TWh of data-centre demand in 2030, and commits to review the 2018 Statement so growth only happens within sectoral emissions ceilings. Action 97 orders a review of policy for large energy users including data centres.

EirGrid's grid plan to 2030 planned on the high-demand scenario driven by large energy users (1,550 MW of LEU demand) and flagged Dublin's 220 kV network as among the most at risk of overloading. It assumed some new LEU demand would be steered outside Dublin and the Mid-East.

Under s.34 of the Electricity Regulation Act 1999 the CRU directed EirGrid and ESB Networks to assess every data-centre application (other than those already connected or contracted) against four unranked criteria: location in a constrained area, on-site dispatchable generation/storage at least equal to demand, and ability to cut demand on instruction. Applications that fail are terminated. The CRU rejected a moratorium but reserved the right to impose one.

EirGrid began telling applicants before Christmas 2021, and confirmed in January 2022, that the greater Dublin area could not take new data-centre connections until major transmission reinforcement, possibly not before 2028. The July 2022 Government Statement restated this.

Councillors adopted material amendments making data centres a 'not permitted' use in every zone. The plan's EDE7 objectives require 'space extensive enterprise' (data centres) to sit outside the M50 where possible, maximise on-site renewables, show energy efficiency and sign the Climate Neutral Data Centre Pact.

After the July 2022 Statement GNI stopped signing new data-centre gas connection contracts, pending CRU policy. Only data centres contracted before the Statement are included in its network planning.

Replaces 2018's 'deliver quickly' with six preference principles: economic impact (regional), efficient grid use, renewable additionality, co-location with renewables or storage, decarbonised by design, community/SME benefit. Says not all demand can be accommodated and that development inconsistent with the principles is not in line with national policy. 'Islanded' data centres powered mainly by on-site fossil generation are ruled out.

Policy CEE25 requires new or expanded data centres to show compliance with national policy on large energy users, high energy efficiency, maximum on-site renewables, waste-heat capture and reuse, Climate Neutral Data Centre Pact membership and local economic impact; data centres are confined to Z7 (employment/heavy industry) zoning.

On the Office of the Planning Regulator's recommendation, the Minister of State directed South Dublin to restore the data-centre use class as 'open for consideration' in REGEN, Enterprise and Employment and Major Retail Centre zones, finding the blanket ban inconsistent with RSES policy RPO 8.25 and lacking an evidential basis.

Says new demand from large energy users such as data centres must be moderated to protect security of supply and fit carbon budgets, orders a review of gas and electricity connection policy for new LEUs, and says DECC will assess caps on LEUs' fossil-fuel demand from 2026.

Objective RE O72 requires data centres to consider fully renewable supply, or at least 30% where full supply is shown not to be possible. Data-centre zoning is provided around Naas.

Objective DMSO92 requires data-centre proposals to address energy-efficiency and renewable generation, energy demand and its source, and location away from land better suited to employment-intensive uses near public transport. Fingal permissions have since attached conditions requiring new renewables to match demand.

Opened a review of how large energy users (electricity and gas) should connect so as to fit the sectoral emissions ceilings and the 2022 Statement, floating ideas such as CPPAs, real-time zero-carbon matching and renewable on-site fuels.

GNI sought CRU consent to build a gas line to Microsoft's Grange Castle campus under a connection agreement signed 17 May 2021 for a 205 MW peak load, customer-funded. The gas is for back-up generation because EirGrid only offered a flexible (curtailable) electricity connection.

CRU chair set out the LEU review, noted the Climate Change Advisory Council's call for CPPAs as a planning condition and for GNI not to sign more islanded data-centre contracts, cited a Fingal permission requiring new renewables to match a data centre's demand, and said the legal mandate of state bodies on climate was unclear.

Names managing data-centre power demand as a possible measure if emissions go off track and sets actions for a Private Wires framework (EL/24/9), an LEU emissions reporting framework (EL/24/22) and incentives for LEU demand flexibility (EL/24/23).

Forecasts total demand up 43% by 2032 (median), with data centres and other new large users at 30% of all demand by 2032. All extra data-centre load modelled is already contracted, almost all in Dublin; any new data centre must bring matching capacity, making it 'net-zero demand' for adequacy.

Consulted on criteria for new LEU connections to electricity and gas aimed at minimising emissions: a transition (glide) path to net zero, location near renewables/energy parks, non-firm connections, interruptible gas, on-site renewable fuels, and emissions measurement and reporting.

Recast EED (EU) 2023/1791 Article 12 and Delegated Regulation (EU) 2024/1364 require operators with installed IT power of at least 500 kW to report energy, water, PUE-type indicators and waste heat to an EU database: first by 15 September 2024, then every 15 May. Ireland's DCEE coordinates but reports go straight to the EU database, not SEAI.

Calls data centres a critical part of AI infrastructure and commits (action 7B) to a plan-led approach to large energy users' needs, including green or renewable energy parks.

Recognises data centres' central role, says their importance will grow with AI, commits to allow data centres that contribute to growth and efficient grid use, prioritise waste heat, and expedite a private-wires framework and a comprehensive energy plan to guide data-centre infrastructure.

Proposed that the policy apply only to data centres, which would need dispatchable on-site or 'proximate' generation/storage matching their MIC that participates in the wholesale market, plus location tests and annual self-reporting of renewables and emissions. Said the Climate Act gives the CRU no legal basis to mandate emissions abatement. Ordered a market-intelligence exercise on future demand.

The revised NPF contains no National Policy Objective specific to data centres; the term appears once, in a description of research and digital infrastructure.

No new data-centre measure; notes the CRU LEU review is ongoing and carries over the private-wires and LEU reporting actions.

Allows private wires in four cases, the first being a single generator or battery directly supplying a separate single user, under a CRU permit. Legislation to follow (general scheme approved December 2025).

Action 80 commits to design a medium-term plan to connect very large energy-intensive industries including data centres; Action 66 commits to private-wire legislation.

About 2,100 MVA of transmission and 300 MVA of 110 kV demand is contracted to data centres and new technology loads, almost all in greater Dublin and contracted before CRU/21/124. Data-centre demand forecast to grow from 959 MVA (2024) to 1,870 MVA by 2035 (median), with data centres and new tech loads at 32% of demand by 2030.

Applies only to data centres of 1 MVA or more. Sites of 1-10 MVA need an autoproducer unit covering their MIC; 10 MVA and above need new, separately metered dispatchable generation/storage on-site or 'proximate', de-rated to at least their MIC and bidding into the market, and cannot energise or ramp until it is delivered. All must meet at least 80% of annual demand with additional, unsubsidised Irish renewables within six years of energisation or lose MIC. Location still decides; supersedes CRU/21/124 for new applications.

17 actions for a plan-led approach after 2030: Green Energy Parks that co-locate big users with renewables, storage and dispatchable generation; a National Planning Statement on parks; flexible/non-firm connections; private-wire legislation; LEU efficiency reporting under the EED; an annual data-centre roundtable. Confirms grid investment to 2030 makes no room for data centres beyond existing contracts and that Dublin opportunities are extremely limited.

Includes implementing LEAP (deliverable 37) and a medium-term approach for large energy users including data centres.

Three environmental groups sought leave in the High Court to quash the LEU decision, arguing it breaches the Climate Act and the Energy Efficiency Directive by allowing new data centres to run on fossil power for six years and leaving 20% unmatched, with back-up generator emissions ignored.

Says data-centre consumption is up 463% since 2015 and that the 5.8 GW pipeline would continue data centres absorbing all new renewable output, stalling the renewable share; criticises the six-year glide path for having no renewables at the outset and no interim milestones.

Implements CRU2025236 for transmission connections: a mandatory pre-application meeting (only for projects outside constrained areas), a three-part application (data centre + nominated generation + nominated renewables, each through ECP-GSS), 7.5 to 18 months to an offer, and MIC cuts or termination if generation or the 80% renewables test fails. The overview declares greater Dublin 'fully constrained' and estimates only 50-100 MW at each of Galway, Limerick and Cork on 220 kV, realistically from the mid-2030s.

Minutes record AWS telling the government taskforce that the four-year de facto moratorium led it to move significant planned investment to Spain, citing Spain's and Germany's predictability.

Estimates data centres directly underpinned €2.2bn GVA and 19,500 jobs in 2024, and says enabled value could reach about €100bn by 2030. At launch the minister described the CRU rule as requiring 80% of on-site generation to be renewable, which is not what the decision says.

CRU is minded to direct GNI to make all new gas connections above 50 MWth interruptible, for a tariff discount, because 17 pending applications (5,466 MWth, mostly data centres and generators) would turn the 1-in-50 winter peak-day headroom (10%) into a 9% deficit by 2033, or an 18% deficit under GNI's risk-adjusted case (from 3% headroom). Market (SEM) generators, including separately metered data-centre generation under the LEU policy, are exempt; behind-the-meter data-centre gas would be interruptible.

CRU told Oireachtas committee it is not discounting gas prices, only network tariffs if supply is interrupted. · Large energy users' network tariffs rose much faster than households'. · Sector size.

CRU told an Oireachtas committee that AI-focused facilities can exceed 100 MW each.

Academic study disputes the KPMG claim that data centres 'underpin' 876,000 jobs. · Resources used for DC expansion had large opportunity costs.

Researchers estimate data-centre water footprint, including water embedded in electricity generation. · Data centres are extremely electricity-intensive per job.

A TCD study argues CRU's accumulated regulatory choices socialise data-centre grid costs onto households; connection fees don't cover reinforcement. · Affordability context cited.

Friends of the Earth told the committee that a large pipeline of DCs is in planning.

An Coimisiún Pleanála overturned Mayo County Council's approval for Avaio Digital's Killala data centre on climate/grid grounds. · Grounds: no demonstrated grid capacity, no local renewable supply or long-term renewable contract, reliance on gas/biodiesel backup, inconsistency with Climate Action Plan 2025.

KPMG's benefits conflate effects: much construction would happen anyway. The key test is whether DCs pay the costs they impose on the power system. Multinationals' share of VAT and payroll taxes is cited at nearly 20% (Fiscal Council estimate).

CRU proposes interruptible gas connections for new large users with a tariff discount.

EPA investigating noise at Echelon's new Clondalkin data centre; a contractor generator running out of hours was removed and chiller mitigation added.

As other jurisdictions impose moratoriums, Ireland risks taking the overflow without cost-benefit analysis. · Households paid more due to data centres. · Share rising.

Argues the government-commissioned KPMG report 'The value of data centres to Ireland' (June 2026) exaggerates benefits. Its figure of 876,000 jobs 'underpinned' came from surveying about 30 large firms (2,100-5,200 staff each) and extrapolating 'digitally dependent' shares to the whole economy, then running input-output modelling on inflated GVA. · Puts 2025 data-centre electricity at 9.4 TWh, 23% of grid demand, with about 3,300 direct jobs. That is 144 jobs per 1% of national power. A DC job is 776x more electricity-intensive than an education job and 1,529x more than one in health and social care. · Estimates the water footprint (direct plus indirect, from electricity generation) of Irish data centres at about 125.9 million litres/day in 2025, or 46 billion litres/yr, and 254.7 billion litres cumulatively from 2015 to 2025. That equals the direct water use of about 340,600 homes (18.5% of occupied dwellings). · Puts emissions at 620 tCO2 per direct full-time data-centre worker (2024 data), 42x the average Irish job. · Opportunity cost: the capital and labour that went into data centres could have built nearly 50,000 homes in 2019-2024. Ireland's HTC construction exports (€2.1bn) are under 1% of foreign-owned computer-services exports (€279bn in 2024, 94% foreign-owned). Calls for a moratorium. · Re-uses Fearon's FoE modelling: data centres raised household wholesale electricity costs by €360 per average household (€715m in total) over 2015-2023. · Authors summarise their report 'How we all pay for Big Tech'. · The paper says data centres give few permanent jobs for the power they use. · KPMG's headline figures (€104bn GVA, 876,000 jobs, €14.6bn tax) rest on a spurious method, attributing whole sectors' activity to data centres via an input-output model. · Estimated water footprint of Irish data centres (direct plus indirect). · Capital used for data centres could instead have built homes or funded public services jobs. The authors call for a moratorium. · They estimate DC construction jobs are higher than KPMG's figure.

Drafts of the KPMG report flagged opportunity costs vs housing/transport and recommended mandatory water/energy standards; these were removed after departmental feedback. · A draft said 'non-domestically critical' data centres could relocate without disrupting Irish services. · FOI records show the Department asked KPMG to strengthen the pro-data-centre narrative of its draft; an 'opportunity costs' section was dropped and community concerns reduced. · Separately, RTÉ (19 June 2026, Gordon Deegan) reported the Department paid KPMG for the study.

Dublin's share of capacity among five big western European hubs is smallest. · Microsoft, Amazon and Meta are shifting new builds away from Dublin, Microsoft toward the Nordics.

Data centres drew close to a billion litres from public supply in 2025. · Pharma and alumina use far more water. · Data centre public water use rose sharply in the summer 2026 heat/hosepipe ban.