Scotland’s data centre reckoning part 2: Who pays the bill?

WHEN A DEVELOPER applies for planning permission to build a 500 megawatt data centre in rural Scotland, the application will include an economic impact assessment. It will show jobs created – typically several thousand during construction, and several hundred permanent positions once operational. It will show business rates generated, local supply chain spend, and capital investment figures running into the hundreds of millions of pounds. It will present the facility as an unambiguous economic good for the community and the country.

What it will not show is what the facility costs the people who live near it, connect to the same electricity grid, and draw water from the same catchment. That calculation does not appear in any planning submission. It has not been published by any Scottish Government minister. And it is not required by any current planning policy.

This article will show it.

The grid charging system nobody explains

Scotland’s electricity transmission system is paid for through a charging framework administered by the National Grid Electricity System Operator. Transmission Network Use of System charges — TNUoS — are levied on all users of the high-voltage transmission network and recovered through electricity bills. When a large new demand connects to the network and requires transmission infrastructure to be upgraded or extended, the cost of that upgrade is socialised across all users.

This is not a conspiracy. It is the designed intent of the charging framework – a socialisation model that spreads infrastructure costs broadly. For most purposes, it is a reasonable approach. For a pipeline of twenty hyperscale data centres adding 8,700 megawatts of new demand, however, it creates an enormous hidden transfer of cost from the developers who benefit to the households who do not.

The estimated household exposure – based on published TNUoS methodology applied to the declared capacity of the current Scottish pipeline – is between £145 and £225 per household per year in additional network charges once the facilities are fully operational. That is not a marginal rounding error. It is a structural cost, embedded in the billing system, invisible to the households bearing it, and entirely absent from any planning document submitted by any developer.

The subsidy that compounds it

The network charging exposure would be significant on its own. It is made worse by a UK Government proposal that has received almost no scrutiny in Scotland.

The Department for Science, Innovation and Technology has proposed a £24 per megawatt-hour electricity discount for data centre developers – a direct subsidy to reduce the energy costs of facilities that are, by any measure, among the most energy-intensive commercial operations on earth. For a 500 megawatt facility operating at 80 per cent utilisation year-round, that subsidy is worth £84 million per year.

Across the Scottish pipeline of twenty facilities, the annual subsidy transfer could exceed one billion pounds.

The corporations receiving this subsidy are not struggling startups. The hyperscale data centre market is dominated by Microsoft, Google, Amazon, and their peers – companies whose combined market capitalisation exceeds $5 trillion. The proposal is to give them £84 million per year per facility, funded by every household in Great Britain through their electricity bills, as an incentive to build infrastructure they were already building.

What Scotland can do

Electricity market regulation is reserved to Westminster. Scotland cannot unilaterally abolish the DSIT subsidy or redesign the TNUoS charging framework. But Scotland can do two things that are entirely within its devolved competence.

First, the Scottish Government can formally and publicly oppose the DSIT subsidy and refuse to facilitate its application in Scotland. A ministerial statement to the Scottish Parliament, followed by formal correspondence to DSIT, is the minimum required. It costs nothing and it requires no legislation. It is a decision.

Second, Scotland can use its planning powers to require developers to contribute directly to the communities that host them. Section 75 of the Town and Country Planning (Scotland) Act 1997 allows planning authorities to require developers to enter into planning obligations – conditions attached to consent requiring financial contributions to community benefit funds. Wind farm developers in Scotland have operated under community benefit agreements worth £5,000 per megawatt per year for over a decade. The principle is established, the mechanism is available, and the precedent is clear.

The Community Energy Fund

The Scottish Energy Compact proposes a mandatory Section 75 planning obligation requiring every hyperscale data centre developer to contribute £15 per megawatt-hour of electricity consumed into a ring-fenced Community Energy Fund, administered by the relevant local authority.

The fund would be applied exclusively to energy efficiency measures — insulation programmes, heat pump installations, and direct bill relief for residential properties in the hosting area. It would not go into a council general fund, or into discretionary spending. It’s sole purpose would be to alleviate documented energy costs of the people who live beside the facility.

For a 500 megawatt facility consuming 3,500 gigawatt-hours per year, the contribution is £52.5 million annually. Against the £84 million per year DSIT subsidy received by the same facility, it represents a partial repatriation of the public subsidy to the public that funded it.

The transparency gap

Before any of this can be addressed, a basic prerequisite must be met: the public must know what is being built, at what cost, and who is paying.

No Scottish minister has published a cumulative assessment of the network cost impact of the current data centre pipeline on Scottish household electricity bills. No planning application has been required to include such an assessment. No community has been told, as part of the consent process, what the facility being approved in their area will cost them individually.

This is not an accident. The information exists. The methodology for calculating it is public. The figures are not technically difficult to produce. They are simply not required – by planning policy, by ministerial direction, or by any condition of consent.

The public deserves to know what is being built in their name and at their expense. That is not a radical proposition. It is the minimum standard of transparency that any government claiming to represent its people should meet without being asked.