Summary
- Two Scottish Parliament committees opened hyperscale data centre consultations on 7 October.
- Evidence is sought on grid demand, curtailed renewables, heat reuse, environmental impacts and local economic benefits.
- Submissions close on 15 November; the inquiry does not decide individual planning applications.
Two Scottish Parliament committees have opened a call for evidence on hyperscale data centres, inviting submissions about their environmental effects, demands on electricity infrastructure and possible contribution to Scotland’s economy. The public survey and detailed consultation both opened on 7 October 2026 and close at 23:59 on 15 November.
The Climate Action Committee is investigating the environmental consequences of building and operating large computing facilities. The Economy, Tourism and Energy Committee is examining their economic and electricity-system implications. Together, the evidence requests move an existing political debate into a defined parliamentary scrutiny process; they neither grant nor refuse permission for individual projects.
Electricity demand, infrastructure and system flexibility
The economic and energy questions ask what greater data centre development would mean for electricity demand and generation, network investment, the use of waste heat, curtailed renewable electricity and overall grid balancing. They also seek evidence about actions needed to assess and manage these effects alongside rapid growth in demand for computing.
Connection capacity is distinct from a developer’s proposed campus size. A facility can obtain planning consent while still needing substations, network reinforcement or agreements establishing when electricity may be supplied. The committee has not announced new connection conditions; its questions invite participants to explain how existing and future infrastructure requirements should be assessed.
Curtailed renewable electricity is another specific subject of consultation. Curtailment occurs when available generation cannot be accommodated under network or operational conditions. Data centre operators may be able to use some flexible computing demand when such output is available, but intermittent surplus power alone cannot provide the continuous supply required for every workload.
The inquiry also asks about the scope for reusing heat from computing equipment. Useful export would require a compatible receiving network, nearby customers and arrangements covering seasonal demand. Heat generated in a data centre is not equivalent to heat already delivered to homes or other buildings, and the consultation does not identify a completed Scottish project as the outcome of the inquiry.
Environmental measures beyond electricity
The Climate Action Committee’s questions extend to water use and water quality, air pollution, biodiversity, noise, backup power and emissions. These issues can vary significantly between facilities depending on their size, cooling systems, location and operating arrangements, which makes project-level technical evidence relevant to the national debate.
Liquid cooling can transfer heat efficiently from computing components, but its wider water and energy implications depend on how heat is ultimately rejected or recovered. Likewise, backup generators introduce local air-quality considerations even when used primarily for resilience. The inquiry seeks to understand these impacts rather than presume one cooling or backup approach is appropriate everywhere.
Committee material asks what qualifies as a green data centre and which measures should prevent or mitigate adverse environmental outcomes. It also invites lessons from other countries and evidence about Scotland’s climate and nature objectives. These are questions for respondents, not standards already adopted through the consultation.
The Climate Action Committee agreed its approach at a meeting on 1 October, including writing to the Scottish Government and issuing a call for views. Its published inquiry page says evidence taking was planned for October and November, with the possibility of further work after the initial phase. The launch of the submission routes on 7 October is therefore the fresh event in this reporting window.
Investment claims and the limits of the inquiry
The Economy, Tourism and Energy Committee wants evidence about attracting businesses, employment, local supply chains, tax receipts and the proportion of economic gains retained in Scotland. Construction jobs and permanent operations roles should be treated separately: construction employment follows a time-limited programme, while operational staffing depends on facility design and the amount of ongoing maintenance and support required.
Likewise, an announced investment value does not identify how much expenditure reaches Scottish suppliers or communities. Evidence on procurement, training and long-term operation could help distinguish broad economic forecasts from benefits attached to individual projects.
Some Scottish data centre proposals have already become subjects of planning controversy, including disputes about land use, environmental assessment and infrastructure. The Parliament’s inquiry page explicitly states that particular planning applications are matters for local authorities and will not be examined as individual cases in this process.
The two committees also have different next steps. The Climate Action Committee has a defined environmental inquiry, while the Economy, Tourism and Energy Committee says responses will inform its consideration of future work. Nothing in the call establishes a moratorium, changes planning law or imposes an immediate reporting obligation on operators.
The Scottish Parliament Information Centre is expected to summarise and analyse responses, with sampling possible if submissions are numerous. That evidence will inform committee scrutiny after the 15 November deadline. Any subsequent policy recommendation, legislative change or government action would require a separate decision.
