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Chamber and committees

Official Report: search what was said in Parliament

The Official Report is a written record of public meetings of the Parliament and committees.  

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Dates of parliamentary sessions
  1. Session 1: 12 May 1999 to 31 March 2003
  2. Session 2: 7 May 2003 to 2 April 2007
  3. Session 3: 9 May 2007 to 22 March 2011
  4. Session 4: 11 May 2011 to 23 March 2016
  5. Session 5: 12 May 2016 to 4 May 2021
  6. Session 6: 13 May 2021 to 8 April 2026
  7. Current session: 14 May 2026 to 10 November 2026
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Displaying 143 contributions

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Climate Action Committee [Draft]

Environmental Impacts of Hyperscale Data Centres

Meeting date: 5 November 2026

Stuart McMillan

I have one more question, after which I will bring in Ariane Burgess for a final question. It is a question that I asked the previous panel. As has been mentioned, domestic energy is extremely expensive in the UK. If we decide to proceed with data centres, whether hyperscale or otherwise, should domestic customers be expected to pay higher bills as a consequence?

Climate Action Committee [Draft]

Environmental Impacts of Hyperscale Data Centres

Meeting date: 5 November 2026

Stuart McMillan

I welcome the second panel of witnesses, some of whom are joining us online. We have with us Alejandro Gallego Schmid, reader in circular economy and life-cycle sustainability assessment at the University of Manchester; Wim Vanderbauwhede, professor in low-carbon and sustainable computing at the University of Glasgow; and Thomas Morstyn, associate professor in power systems at the University of Oxford.

We will proceed straight to questions. My first question is directed to Wim Vanderbauwhede. Would you mind if I called you Wim—would that be okay?

Climate Action Committee [Draft]

Interests

Meeting date: 5 November 2026

Stuart McMillan

Good morning, and welcome to the eighth meeting in session 7 of the Climate Action Committee. I welcome Donald MacKinnon to the committee and look forward to working with him, and I extend members’ thanks to Claire Baker for her work on the committee. Under agenda item 1, I invite Donald MacKinnon to declare any interests that are relevant to the committee’s remit.

Climate Action Committee [Draft]

Environmental Impacts of Hyperscale Data Centres

Meeting date: 5 November 2026

Stuart McMillan

That is very helpful, because that is the subject of my next question. What would you like to see in the definition of a green data centre?

Climate Action Committee [Draft]

Environmental Impacts of Hyperscale Data Centres

Meeting date: 5 November 2026

Stuart McMillan

I will ask a final question before I bring in other members. You touched on the position in other countries, and the inquiry’s remit includes consideration of that. Lombardy, in Italy, passed a law in June that came into effect in October, and it is already looking to make amendments to strengthen what was recommended. Australia is looking for large-scale data centres to underwrite power supplies, limit their water use and pay for any extra water infrastructure. The developers of data centres in Ireland are to fund any new renewable energy projects. Would it be useful for the Scottish Government to include such approaches in its guidance?

Climate Action Committee [Draft]

Environmental Impacts of Hyperscale Data Centres

Meeting date: 5 November 2026

Stuart McMillan

The use of vegetable oil for back-up generation has come up only once this morning. How realistic is it that that could be used for hyperscale data centres? The Scottish Government is considering hyperscale data centres that exceed 50MW.

Climate Action Committee [Draft]

Environmental Impacts of Hyperscale Data Centres

Meeting date: 5 November 2026

Stuart McMillan

If it is a brief one. Can we have brief answers, please?

Climate Action Committee [Draft]

Environmental Impacts of Hyperscale Data Centres

Meeting date: 5 November 2026

Stuart McMillan

I think that Donald MacKinnon has a brief supplementary. Did you want to come in as well, David?

Climate Action Committee [Draft]

Environmental Impacts of Hyperscale Data Centres

Meeting date: 5 November 2026

Stuart McMillan

Thank you.

Climate Action Committee [Draft]

Environmental Impacts of Hyperscale Data Centres

Meeting date: 5 November 2026

Stuart McMillan

Before we conclude, I have two brief questions. Are there any examples of regulation or proposed regulation that the Scottish Government should consider? For example, Lombardy has introduced a new law this year; Australia is proposing that new large-scale data centres should underwrite their power supplies, limit their water use and pay for any additional water infrastructure; and Ireland will require data centre developers to support the development of new renewable energy projects.