A £16.5bn proposal for a major data center-led technology and energy campus on land north of the former Chapelcross nuclear power station in southern Scotland has placed one of the country’s historically significant energy locations at the center of a new infrastructure debate. CX Tech Ltd has submitted plans for the development, which could establish one of the world’s largest data center projects by power capacity if authorities approve the scheme. The company hopes construction can begin next year, with the full development expected to take roughly eight years to complete. The proposed development would occupy land north of the former Chapelcross nuclear power station within the wider Chapelcross area, which remains shaped by its energy infrastructure legacy. Yet the scale of the project also raises questions about how Scotland should manage large electricity users, local infrastructure pressures and the visual consequences of industrial-scale digital development.

From Nuclear Power To Digital Infrastructure

Chapelcross operated as a nuclear power station from 1959 until 2004, making the site part of Scotland’s electricity infrastructure for more than four decades. Its four cooling towers became a defining feature of the surrounding landscape before their demolition several years after the station stopped generating power. The site completed defuelling work in 2013, while its wider decommissioning program continues through successive stages, with the Chapelcross Development Framework identifying a Care and Maintenance phase from 2040 to 2089 before final site clearance between 2089 and 2095. That long timetable gives the proposed data center a significance beyond the construction of another large technology facility because it would place digital infrastructure inside a location already shaped by national energy policy. The project therefore sits at the intersection of decommissioning, economic regeneration, electricity demand and Scotland’s emerging digital infrastructure strategy.

The proposed development would occupy part of a landscape already defined by energy infrastructure and its legacy. CX Tech’s planning case describes the scheme as a route toward bringing a nationally significant site back into productive economic use while providing what it calls “critical digital infrastructure”. That framing matters because large data centers increasingly require locations where power availability, land, connectivity and long-term infrastructure planning can align. Former industrial and energy sites can offer some of those characteristics, but redevelopment does not automatically remove the constraints that affected the original use of the land. Instead, a new digital project introduces a different set of requirements, particularly around electricity supply, cooling, network connectivity and construction sequencing. Chapelcross consequently represents a broader question about whether former energy sites can become strategic platforms for the next generation of computing infrastructure.

The Scale Of The Proposed Development

CX Tech says the project could support substantial employment during construction and operation, with current project material identifying 750 construction jobs and around 450 permanent direct jobs. Those employment expectations form a central part of the economic case for redeveloping the former nuclear site. However, the strategic importance of the project extends beyond employment because its proposed electricity requirement would make it a major participant in the regional energy system. A development of this scale cannot treat power as a simple utility input; it must integrate electricity availability, grid capacity and long-term energy planning into the infrastructure design from the outset. The Chapelcross proposal therefore illustrates how the economics of modern data centers increasingly depend on infrastructure decisions made well before servers enter the building.

For Scotland, the proposal also arrives as governments and communities confront the growing physical footprint of artificial intelligence and cloud computing. Digital infrastructure can appear intangible to users, but facilities capable of supporting intensive computing loads require substantial physical systems, including substations, cooling equipment, network connections and resilient power arrangements. That reality changes the planning conversation around former industrial sites. Developers can present a data center as an engine for economic renewal, while communities can reasonably ask how the facility will interact with local energy infrastructure and the surrounding landscape. The answer depends not only on the size of the building but also on how its electricity demand fits within wider regional planning. Chapelcross could therefore become a test case for how Scotland balances digital investment with the practical limits of infrastructure.

CX Tech Frames Chapelcross As A New Economic Chapter

Graeme Anderson, chief executive of CX Tech, described the proposal as a major opportunity for the region and Scotland. “This is a once-in-a-generation opportunity for Dumfries and Galloway and for Scotland. “Chapelcross has the potential to bring together our renewable energy strengths, digital infrastructure and high-value jobs in a way that few other sites can. “We have an opportunity to seize that potential now, creating a new economic future for a site that has played an important role in Scotland’s energy story for generations.”

His comments place the project within CX Tech’s wider case for using the Chapelcross area to support digital infrastructure, employment and energy-related development. The emphasis on renewable energy and digital infrastructure reflects the increasingly close relationship between electricity generation and computing capacity. Data center developers now evaluate sites not simply for available land, but for the ability to secure dependable power over the life of an increasingly energy-intensive facility. Chapelcross offers a distinctive narrative because the site itself carries decades of experience with large-scale electricity generation. That history, however, does not guarantee that the modern requirements of a major computing facility will align automatically with the infrastructure surrounding the former plant.

Local Opposition Tests The Regeneration Argument

The project has already attracted opposition from a local campaign, bringing environmental and infrastructure concerns into the planning process. Critics have questioned the visual effect of the proposed development and raised concerns about its potential impact on local energy supplies and costs.Those objections place the project’s proposed employment and investment benefits alongside local concerns about the development’s scale, visual impact and potential effects on infrastructure. A data center may create jobs and investment while simultaneously placing new demands on infrastructure that residents already depend upon. Planning authorities therefore face the difficult task of assessing the project’s wider economic contribution alongside its local consequences. The debate around Chapelcross is likely to focus not only on whether the site can accommodate the project, but on what conditions would make such a transformation acceptable.

The timing adds another layer of complexity because Scotland is preparing new national guidance for data center planning. Earlier this month, the Scottish government rejected a Scottish Greens proposal to pause data center application processes until the guidance takes effect. Ministers instead said they would publish the guidance by Christmas and indicated that they did not expect planning decisions on such projects before then. That position places the Chapelcross application within a rapidly changing policy environment. Developers must advance projects while planning authorities prepare for a framework intended to provide greater consistency around large data center proposals. The resulting process could determine how authorities weigh electricity demand, economic benefits, environmental effects and community concerns when reviewing projects of exceptional scale.

Chapelcross Could Become A Test Of Scotland’s Data Center Strategy

The significance of the Chapelcross proposal ultimately extends beyond one former nuclear plant. Scotland now faces the challenge of deciding where large computing facilities should locate, how their electricity requirements should interact with national and local energy planning, and how communities should participate in those decisions. Former power sites may offer compelling locations because they already belong to the country’s industrial and energy landscape, but their redevelopment still requires careful assessment of modern infrastructure needs. The proposed project also demonstrates why data center planning increasingly resembles energy planning, with decisions about power, land and grid capacity becoming inseparable from decisions about digital growth. For developers, the opportunity lies in turning legacy infrastructure sites into platforms for new economic activity without treating local constraints as secondary considerations.

Chapelcross once represented Scotland’s nuclear generation era, and its proposed transformation now reflects the country’s next infrastructure transition. The £16.5bn project would create a new industrial purpose for a site whose existing legacy will remain visible for decades, even as the surrounding infrastructure changes. Its proposed employment contribution and digital infrastructure role provide a clear economic rationale for consideration, while opposition over visual impact, energy supplies and costs ensures that the planning debate will extend beyond the developer’s own case. The project also arrives at a moment when Scotland is developing new rules for an industry that can place unusually large demands on power and infrastructure. Consequently, the Chapelcross decision could help reveal how Scotland intends to reconcile its energy past with the infrastructure requirements of an increasingly digital economy.