Denmark halts data centre growth as grid strain rises

Denmark has become the unlikely flashpoint in Europe's battle over who gets power and who gets left behind. In March 2025, state-owned grid operator Energinet froze all new grid connection agreements after receiving requests totalling 60 GW, nearly nine times the country's peak electricity demand of 7 GW. Data centres alone account for 14 GW of that queue.

The surge in applications is being driven by a collision of forces: the energy transition, accelerating digitalisation, and an AI infrastructure arms race that is compressing decades of demand into a few years.

Energinet described the incoming applications as an "explosion", and the mismatch between ambition and available capacity has forced a rare administrative freeze.

Data Center Industry Association (DDI) CEO Henrik Hansen told CNBC the spike has created a "fantasy" queue. It's not possible to just go berserk with all kinds of connection agreements because the power is not available," he said, calling for stricter criteria around project maturity and genuine investment commitment before applications advance.

The pause is officially set to last three months, but industry insiders say an extension cannot be ruled out. No political decisions can be made while Denmark forms a new government following a general election, leaving Energinet in a regulatory holding pattern.

Prior to the vote, Energy Minister Lars Aagaard signalled that data centres could be pushed to the back of the queue behind Danish domestic customers.

Denmark currently hosts around 398 MW of installed data centre capacity, with a further 208 MW under construction and 1.2 GW of growth projected by 2030, according to DDI figures. Hyperscalers Microsoft, Google, and similar operators account for 60% of existing capacity. Microsoft alone has committed $3 billion in Danish infrastructure investment between 2023 and 2027.

For global operators, regulatory uncertainty has a short fuse. Google's global director of data centre public affairs, Diana Hodnett, said companies move quickly when moratoriums lack clear timelines. "I'm not sure governments and TSOs realise how quickly that can happen," she told CNBC, referring to the speed at which investment decisions shift to other markets.

Pernille Hoffmann, managing director of the Nordics at Digital Realty, was direct: "If you cannot get your AI workloads located in Denmark, you'll just move them somewhere else."

Energinet's Chief Operating Officer Søren Dupont Kristensen called it a "window of opportunity" to redesign regulatory frameworks before growth outpaces governance entirely.