Ireland’s data centre sector now accounts for nearly one-quarter of all metered electricity consumed across the country, according to latest statistics released by the Central Statistics Office. The industry’s share of national power usage reached 23% in 2025, representing a continued upward trajectory in energy demand from digital infrastructure facilities.
The latest figures demonstrate a one percentage point increase from the 22% recorded in 2024, continuing a trend that has seen data centre electricity consumption expand dramatically over the past decade. In 2015, these facilities represented just 5% of Ireland’s total metered electricity usage, meaning their share of national power demand has more than quadrupled in ten years.
This sustained growth in electricity consumption reflects Ireland’s position as a major European hub for data centre development, with numerous multinational technology companies establishing large-scale facilities across the country. The concentration of data infrastructure in Ireland has been driven by factors including the country’s temperate climate, reliable connectivity, and historically attractive corporate tax environment.
The increasing power demands from data centres have become a significant consideration for Irish energy policy and grid management. Enterprise Ireland and the IDA Ireland have both recognised the sector’s importance to Ireland’s digital economy whilst acknowledging the infrastructure challenges associated with such concentrated energy consumption.
Eirgrid, the state-owned electricity transmission operator, has previously highlighted concerns about the impact of data centre growth on Ireland’s electricity grid capacity, particularly in the Dublin region where many facilities are concentrated. The company has implemented measures to manage grid stability whilst accommodating the sector’s expansion.
The Central Statistics Office data reveals the extent to which Ireland’s electricity demand profile has transformed over the past decade, with digital infrastructure becoming an increasingly dominant consumer. This shift has implications for Ireland’s renewable energy targets and carbon reduction commitments under European Union climate frameworks.
Industry representatives maintain that modern data centres incorporate energy-efficient technologies and increasingly utilise renewable power sources through corporate power purchase agreements. Several major operators have committed to achieving carbon neutrality targets and investing in on-site renewable generation capacity.
The continued expansion of data centre electricity consumption occurs against a backdrop of broader national efforts to transition towards renewable energy sources. Ireland has set ambitious targets for renewable electricity generation as part of its Climate Action Plan, creating a complex balancing act between accommodating economic growth in the digital sector and meeting environmental objectives.
Grid infrastructure development has become critical to managing both data centre growth and the integration of renewable energy sources such as wind and solar power. Significant investment in transmission and distribution networks is required to maintain system reliability whilst supporting increased demand from industrial consumers.
The commercial rates paid by data centres contribute substantially to local authority revenues in areas where facilities are located, providing funding for public services and infrastructure. This economic contribution represents an important consideration in planning decisions regarding new data centre developments.
Regulatory authorities continue to evaluate connection policies for new large energy users, including data centres, particularly in regions where grid capacity faces constraints. Some areas have experienced moratoria on new connections pending infrastructure upgrades, affecting the development pipeline for proposed facilities.
The latest consumption statistics will likely inform ongoing policy discussions regarding Ireland’s approach to balancing economic development in technology-intensive sectors with energy security and climate commitments. Government departments and regulatory bodies face ongoing challenges in developing frameworks that support sustainable growth whilst ensuring adequate electricity supply for all consumers.
As Ireland’s digital economy continues expanding, the relationship between data infrastructure growth and national electricity systems remains a defining issue for economic planners, energy regulators, and environmental policymakers. The trajectory indicated by the Central Statistics Office figures suggests this sector will remain a major factor in Ireland’s energy landscape for the foreseeable future.