TL;DR

Holyrood debates a Scottish Greens motion today that would halt new hyperscale data centre approvals until promised national guidance takes effect. It is the first time a UK devolved parliament has been asked to stop the build-out outright rather than shape it. BBC Scotland research counted at least 23 projects in the planning system as of 24 June.

Why developers want Scotland

The draw is wind. Scotland generates more renewable electricity than its transmission links can carry south, so a large share is curtailed and wasted. Siting a power-hungry facility beside that generation lets an operator claim green credentials while soaking up energy the grid cannot move.

Cheap land helps too. The counterweight is scale: these are warehouse-sized buildings with substantial footprints, and opposition is organising. At Blackdog in Aberdeenshire, resident Jamie Prentice told the BBC that a development spanning several fields would leave him living beside an industrial estate.

The objections have numbers behind them

Dr Callum MacIver cautioned MSPs this week that extra demand risks pushing Scotland back onto gas when the wind drops, making climate targets harder to hit. Proximity to a wind farm does not mean a facility runs on it.

Ireland is the warning case that keeps being cited. Its data centres took 23% of national electricity last year, and household bills rose. Scotland’s system operator argues it is separating electricity pricing from wholesale gas costs, which should blunt that effect; analysts are not yet persuaded.

Water looks less alarming. Scottish Water’s Colin Lindsay put current daily consumption at 97 cubic metres, below what the country’s libraries use, and modern closed-loop cooling has cut demand sharply. The concern is growth and location, not today’s totals.

The jobs question

Supporters promise thousands of roles. Most of those sit in construction. Once a facility is running, a handful of staff on site is typical, which is the figure councils and MSPs should be weighing against the planning cost.

Looking forward

Most experts think many of the 23 applications are speculative and will never be built, so a moratorium may bite on fewer projects than the number implies. The contrast with England is already visible: West Yorkshire’s mayor is publicly defending a Microsoft facility approved near Leeds. UK businesses weighing AI capacity should expect siting, not silicon, to be the binding constraint.