Scotland’s parliamentary inquiry into hyperscale data centres is examining possible impacts; it is not an approval of proposed facilities or a finding that they have caused harm. At the outset of the inquiry, the Scottish Parliament said Scotland had no hyperscale data centres. The NEN reports that more than 20 are proposed in different locations. Those proposals are prospective, and planning applications remain decisions for local authorities.
What the Scottish Parliament inquiry covers
Two committees are gathering evidence about different sides of potential development. The Climate Action Committee is examining environmental effects. The Economy, Tourism and Energy Committee is considering economic and energy implications. The inquiry is intended to inform understanding and policy; it will not assess or decide specific planning applications.
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The Climate Action Committee is asking about potential effects during construction and operation on water quality and consumption, air quality, nature and biodiversity (including soil), noise, energy use and associated generation, backup generation, emissions, and mitigation such as waste-heat use. It also wants evidence on implications for Scotland’s climate and nature goals and lessons from other countries. Scottish Parliament: Climate Action Committee inquiry
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1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsThe Economy, Tourism and Energy Committee is asking about jobs, investment, supply chains, tax revenues, whether data centres attract other businesses, and how much economic benefit Scotland can retain. Its energy questions include electricity demand and generation, network capacity, waste heat, curtailed renewable electricity and balancing the overall system. Scottish Parliament: Economy, Tourism and Energy Committee inquiry
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How to contribute
The detailed evidence call is aimed at people and organisations with professional or academic experience; a shorter survey is open to the public. Parliament cautions that survey responses are self-selecting and cannot be treated as representative of public opinion. The call for views closes on 15 November 2026. Scottish Parliament: inquiry call for views
Construction impacts to assess separately from operating impacts
A credible assessment should distinguish temporary or phase-specific construction effects from impacts that may continue throughout operation. The inquiry asks about both, but the sources available do not establish measured impacts from an operating Scottish hyperscale facility.
During construction
- Land and habitats: site preparation and land transformation can raise questions about soil, biodiversity, and how effects on habitats are avoided or mitigated. The significance depends on the site and its assessment.
- Materials and emissions: construction materials and activity can be relevant to embodied and construction-related emissions. These should be assessed for a specific project rather than assumed from the data-centre label.
- Nearby communities and water: construction traffic, dust, noise and water use are potential issues to examine, alongside local water quality and pollution risks.
- Combined development: several projects in one area could have effects that a site-by-site view does not capture, including pressure on land, roads, water resources or infrastructure.
During operation
- Electricity and the grid: assessment should address demand, how and when it is met, required network infrastructure, generation and backup arrangements, and the implications for other users.
- Cooling and water: the inquiry is asking about water consumption and quality as well as cooling. The relevant effects depend on a facility’s design, location and operating arrangements.
- Air quality and noise: backup generation and other equipment are among the operational topics identified by Parliament; the inquiry is seeking evidence rather than reporting a finding about a particular site.
- Heat and materials: waste-heat use, hardware and materials over their lifecycle, and their eventual management or disposal are also relevant questions.
A UK Parliament written-evidence submission (DCU0056) advocates assessing cumulative environmental effects and considering emissions across construction and operation, water use, pollution risks, backup generation and cooling. It also argues for additional renewable generation and storage and for scrutiny of claims based on certificates or power-purchase agreements. These are recommendations made by a submitter, not settled Scottish policy. UK Parliament: written evidence submissions
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Economic benefits and energy demands are questions, not settled outcomes
Potential economic gains include jobs, investment, supply-chain activity, tax revenues and business attraction. Their value to Scotland depends not only on headline totals but also on the number and duration of jobs, how construction and operating activity differ, and how much value remains in Scotland. The committees are seeking evidence on these points; the reviewed sources do not establish a verified job estimate for Scottish proposals.
Electricity demand is likewise a central question, not a Scotland-specific forecast established by the figures below. National statistics provide context but cannot show what proposed Scottish facilities would consume, what infrastructure they would require, or whether benefits would outweigh local costs.
What national figures can—and cannot—show
| Measure | What the source reports | How to interpret it |
|---|---|---|
| Data-centre electricity use | ONS, reporting DESNZ statistics, estimates UK data centres used 4.5 TWh in 2024—2% of the 249.2 TWh of grid electricity consumed in Great Britain that year. It estimates use rose by 1.3 TWh (41%) from 2020 to 2024. | National operational-sector context, not Scotland-only, hyperscale-only or a measure of construction impacts. ONS, 2026 |
| Digital infrastructure investment | ONS proposes an estimate of £3.6 billion for UK digital infrastructure investment in 2025. It says existing national-accounts measures do not separately identify data-centre investment or output and that its existing infrastructure methodology captured roughly 30% of the proposed 2025 figure. | This is a proposed UK digital-infrastructure estimate, not a direct measure of Scottish hyperscale construction spending. ONS, 2026 |
| Irish data-centre economic contribution | Ireland’s Department of Enterprise, Tourism and Employment reports a KPMG-modelled 2024 estimate of €2.23 billion in GVA: €1 billion construction-related and €1.23 billion operations-related, with 19,472 associated jobs, including 11,155 construction-related. | An Ireland-specific model separating direct, indirect and induced impacts; it is not a forecast for Scotland. Department of Enterprise, Tourism and Employment, Ireland, 2026 |
What evidence would make project claims more useful
For a proposal or policy, comparisons are strongest when they separate phases, locations and outcomes rather than relying on a single total or a general claim that a facility is sustainable.
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- Construction versus operation: report impacts and employment by phase, with their timing and duration clear.
- Local versus cumulative effects: set out site-specific effects on water, habitats, noise, air and grid infrastructure, then consider the combined effects of multiple developments. Cumulative assessment is advocated in the UK Parliament evidence submission, but that recommendation is not itself a government requirement.
- Energy supply and additionality: explain expected demand over time, grid requirements, backup generation and the relationship between supply and use. Distinguish existing requirements from proposals for additional generation or storage.
- Economic totals versus local retention: separate construction from ongoing operations and identify direct, indirect and induced jobs and value, as well as what is expected to remain in Scotland.
- Commitments versus performance: distinguish planned cooling, water, heat-reuse and pollution controls from results measured after operations begin.
The public survey also asks what criteria a hyperscale data centre should meet to be considered “green.” That question is most useful when criteria can be checked against project-specific commitments and measured outcomes, not just labels or claimed benefits. Scottish Parliament: inquiry survey
What happens next
The committees are gathering views for their work, while local authorities remain responsible for planning applications. The NEN reports that the committees plan to share findings with the Scottish Government’s Minister for Public Finance and that the minister has said guidance will be published by Christmas. This is a reported future timetable, not a completed guidance document or policy decision. The NEN: “Holyrood Committees seek evidence on AI data centres”
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