Scotland Freezes Hyperscale AI Data Centres Without a Ban

MSPs froze planning decisions on hyperscale AI data centres on 16 September 2026 until national guidance is published. They had just voted down a Green moratorium that ministers said would send the wrong message to investors.

The motion is political, not a new statute. The rule with legal force is a 50 MW environmental assessment that took effect on 17 September 2026, the morning after the debate.

The Chamber Voted Down a Ban and Passed a Freeze

Public finance minister Hannah Mary Goodlad told the chamber she would not accept the Greens’ wording. Her government amendment, pledging national planning and spatial guidance by the end of 2026, passed 72 votes to 32.

We do not agree that there should be a moratorium. That is not necessary, it’s not appropriate, and it would send the wrong message to anyone looking to invest in Scotland.

Hannah Mary Goodlad, public finance minister, Scottish Parliament, 16 September 2026

Labour MSP Daniel Johnson then inserted the freeze: no planning or consenting decisions on these applications until the guidance is complete. The amended motion passed 80 to 26. Goodlad said she was minded to back Labour but wanted to move faster, with guidance in three months, by Christmas.

Patrick Harvie, the Green MSP who had tabled the original moratorium, said planning guidance alone would still leave councils judging giant sites one by one. The party’s account put the blame on the SNP, Conservatives and Liberal Democrats for voting the ban down.

The SNP have teamed up with the Tories and Lib Dems.

They've voted down a Green motion which would have brought in a moratorium against new hyperscale AI data centres in Scotland.

Instead they've chosen to muddy the water, leaving confusion when our communities need certainty. pic.twitter.com/2qKkVwz4Wg

— Scottish Greens (@scottishgreens) September 16, 2026

Business minister Tom Arthur said the government did not anticipate any planning authority decisions before its guidance is in place. Goodlad called a decision before Christmas highly unlikely. That is the pause campaigners wanted, delivered without the word ministers would not print.

WHAT 16 SEPTEMBER ACTUALLY CHANGED

• The freeze: MSPs agreed that no planning or consenting decisions on hyperscale applications should be made until national guidance is complete.
• The clock: Ministers promised guidance by Christmas 2026, while the Labour text asks for a report by the end of 2026 and full guidance within 12 months.
• The legal step: A new direction forces an environmental impact assessment on every new data centre above 50 MW, including schemes already in the system.
• The earlier net: From 17 August 2026, councils must notify ministers within seven days of validating any such application.

Goodlad’s own test, set out in a government statement the same day, was to balance the economic and employment interests in these sites with energy, climate and community goals. The chamber tried to do that by refusing a ban and stopping the stamp anyway.

Twenty-Four Bids, a 4 GW Peak, Two Different Pipelines

Scotland’s pitch to this industry has been surplus wind and spare industrial land. The file of bids that followed is larger than the country’s winter peak demand on the figures used in the debate.

THE POWER MATH HOLYROOD WAS HANDED

• Campaigner tally: The Scottish Greens put 24 proposals at up to 6 GW, more than 1.5 times peak demand.
• Committed pipeline: Analysis of Barbour ABI data puts 14 committed schemes at 2.4 GW, up from four schemes and 0.9 GW in March, the fastest rise of any UK region.
• UK context: That Scottish slice sits inside 173 committed UK schemes totalling more than 14.6 GW.
• The peak: The National Energy System Operator puts Scotland’s winter peak gross demand at just over 4 GW.

Those 6 GW and 2.4 GW figures are not a quarrel about the same list. One counts the speculative rush, including early-stage bids. The other counts schemes treated as committed. Both sit above a 4 GW peak if they were all drawing at once, which is why the Greens called the full stack impossible.

Action to Protect Rural Scotland has 21 sites on local planning portals as of 13 August 2026, plus two more not yet filed. Before the new direction, 9 of 16 schemes that had reached EIA screening had not been required to do an assessment by the local authority. Ministers later overturned three of those calls, at Edinburgh’s Gyle, Wester Hermiston and Auchtertool in Fife.

THE SITES ALREADY ON THE BOOKS

ILI Group has described The Stoics, its Central Belt network, as 1.5 GW at full build-out. Cato is the flagship. Chapelcross, on a former nuclear site, is larger still on paper. Grid connection queues at SSEN and the GB operator are a separate bottleneck from planning consent, and a freeze on decisions does not move a project up that queue.

Cato Would Draw as Much Power as 1.6 Million Homes

The Fife scheme is the concrete version of the boom Holyrood spent Wednesday trying to slow. ILI Group has applied for planning permission in principle for Cato, a 600 MW campus near Auchtertool, billed as a possible second-largest site of its kind and a £5 billion phased investment. The buildings would cover 280,000 square metres, almost 40 football pitches, and rise to 35 metres, about a 12-storey block of flats.

Mark Wilson, chief executive of ILI Group, said Scotland is well placed because of its skilled workforce, strong renewable energy resources and existing industrial expertise. The company has talked about 120 permanent skilled jobs at full build-out, and about soaking up surplus generation beside the Mossmorran industrial complex.

The energy statement with the application is blunter than the jobs leaflet. A Scottish Parliament Information Centre briefing, drawing on that statement and on official generation figures, sets out what Cato would take if it is built as filed.

CATO’S OWN ENERGY NUMBERS

• Early phase: About 400 GWh of electricity a year.
• Full build-out: 4,000 GWh a year, which is 4 TWh.
• Share of generation: 7.7% of the 51.8 TWh Scotland generated in 2024, if it ran at that full figure.
• Homes: The same annual use as 1.6 million typical households in a year, on Ofgem’s 2,500 kWh typical household figure.

In 2024, 91.5% of Scottish generation was low carbon and 73.1% came from renewables. That is the brochure that brought hyperscale developers north. A single campus at 4 TWh shows why the brochure and the planning file collided. Cato alone would be a 600 MW load on a system whose winter peak is just over 4 GW. The rest of The Stoics would add Rufus at 540 MW and Aurelius at 400 MW on top.

Larbert’s Hearing Landed on the Same Night

While MSPs were still voting, about 100 people were in Larbert High School for a pre-determination hearing on Apatura’s 300MW data centre campus in Larbert. Someone shouted the Holyrood result into the room. There were cheers, then the developer’s team still had to take questions.

The hearing was told the application had drawn 7,284 representations, including 7,166 objections and 83 expressions of support. The site is former farmland beside Glenbervie Business Park on Bellsdyke Road, on land owned by Scottish Enterprise. Neighbours pointed to Forth Valley Royal Hospital, a care home and housing that the presentation had treated as urban fringe.

Green MSP Mark Ruskell warned that three hyperscale applications were likely to be determined this year, including Larbert, where the determination deadline is 4 October 2026. That date is still on Falkirk Council’s calendar. The parliamentary freeze does not, by itself, cancel it.

Scottish Labour MSP Monica Lennon, writing as Holyrood voted, said communities are way ahead of politicians in asking the right questions about hyperscale data centres. The objection pile at Larbert is what that looks like in a council portal: thousands of people arguing about noise, backup generators, water and a load the size of a small city’s demand, while the chamber argued about the title of the pause.

What the 50 MW Rule Changes From 17 September

From 17 September 2026, any new data centre whose power capacity exceeds 50 MW is EIA development in Scotland. Chief planner Dr Fiona Simpson issued the direction on 16 September under the 2017 EIA regulations. Sites below 50 MW stay on the old case-by-case test.

The letter is the closest thing the week produced to a definition of the problem. Simpson wrote that AI raises national questions of energy, water and hardware, that fossil-fuel backup would add emissions not counted in the Climate Change Plan, and that large halls can drop an industrial presence into a sensitive setting, with effects on biodiversity, soils, water, noise and air quality.

She argued there are benefits if an environmental impact assessment for every site above 50MW is built into design from the start, including a smoother path through planning. The direction was prepared with the Scottish Science Advisory Council. It will be reviewed as the kit changes.

HOW THE RULES STACKED UP

1. 2021: The government publishes a vision and action plan that backs green data centres and digital connectivity.
2. National Planning Framework 4: Green data centres sit inside National Development 12, Digital Fibre Network, so the principle of such a development cannot be challenged at application stage.
3. 17 August 2026: Councils must tell ministers within seven days of validating a data centre application above 50 MW.
4. 16 September 2026: Simpson’s EIA direction is published; MSPs reject a moratorium and pass the freeze.
5. 17 September 2026: The 50 MW EIA rule comes into force.
6. 4 October 2026: Falkirk’s stated determination deadline for Larbert.
7. Christmas 2026: Ministers’ target for national planning and spatial guidance.

Kat Jones, director of Action to Protect Rural Scotland, called the EIA step a no-brainer and still said a pause on decisions was essential. She had warned that the first four applications under consideration would use as much energy as Torness nuclear power station, which is due to close in 2030. After the vote she called it a huge step forward, with much still to be done.

National Policy Already Called These Sites Green

The rush did not arrive against government advice. NPF4 already treats green data centres as a national development. That status is not planning permission, but it means objectors cannot argue that Scotland does not need the thing. They can only argue about the design, the site and the impacts.

There is still no agreed definition of a green data centre. A Parliament briefing notes the label is usually applied to sites that use renewable power, cut water use and reuse heat, and that a hyperscale hall with that label still takes land, water and a continuous electrical diet. Protestors outside Holyrood had asked for that definition before any more approvals. They did not get it on 16 September.

Simpson’s letter talks about designing green data centres. Goodlad talks about getting an emerging industry right from the start. Developers talk about closed-loop cooling and surplus wind. Scottish Water has said the 13 sites now running use about 97 cubic metres a day, a sliver of daily supply, and still wants new halls on closed-loop systems because total water demand could exceed supply by 240 million litres a day by 2050. The national policy blessed the category. The local files are where the category becomes a 35-metre wall beside a village, or a 300 MW neighbour to a hospital.

That is why the investor message and the freeze can sit in the same afternoon. Ministers still want the industry. They would not use a word that sounds like a closed door. They also could not let 24 bids run through councils that have no spatial rule, no cumulative energy test and, until 17 September, no automatic environmental assessment above 50 MW.

Councils Still Hold the Planning Stamp

The Greens wanted applications stopped. What passed is a direction to wait on decisions. Developers can still file. Connection requests can still join the queue. Land options do not expire because Holyrood disliked a noun.

WHAT WE KNOW

• Binding rule: The 50 MW EIA direction is in force from 17 September 2026 and applies to new bids and to schemes already in the system.
• Political freeze: The 80 to 26 motion says no planning or consenting decisions should be made until guidance is complete.
• Ministerial line: Goodlad and Arthur say they do not expect determinations before that guidance, and they want the first cut by Christmas 2026.

WHAT IS UNCONFIRMED

• Larbert’s date: Whether Falkirk still tries to determine Apatura’s application by 4 October 2026.
• Other live files: Whether any of the other schemes Ruskell flagged can still be decided before Christmas.
• The guidance itself: Whether the Christmas paper is the full spatial test Labour asked for, or a first instalment with the rest inside 12 months.

A jobs-side reading of the same vote is that Scotland just told a global construction wave to wait, in a country that has been selling itself as a home for that wave. A community reading is that thousands of objections finally reached the chamber. Both can be true at once because the legal tool and the political tool are not the same object. Simpson’s direction will slow designs and force water, noise and carbon onto paper. The freeze will slow stamps only for as long as ministers and councils choose to treat a motion as if it were a law.

Larbert’s 4 October 2026 deadline is still a date on a council clock. Ministers say they do not expect a decision before the guidance. The motion cannot lift the stamp out of a planner’s hand on its own.