Denmark bumps data centers for EV chargers

Every new EV charger, heat pump and data centre needs the same thing: a cable to the grid and a substation with room to spare. Denmark just ran out of room.

The Danish government plans to replace its first-come-first-served queue for grid connections with a priority system. Households, defence, health services and EV chargers move up. Foreign data centres move down (Berlingske). The reason is arithmetic. In 2025, grid operator Energinet received applications for 33.5 GW of new capacity, according to figures cited by Danmarks Naturfredningsforening, a Danish environmental group. Peak demand sits around 7 GW (Data Center Dynamics). The queue is several times larger than the system it wants to plug into.

A grid connection request reserves capacity on the network. It can block others even before the project draws any electricity. Data centres alone have claimed roughly 16 GW of Denmark's queue (Danmarks Naturfredningsforening). The government framed the trade-off in household terms: one large data centre's load could instead power 50,000 home heat pumps or 73 motorway EV charging parks (Berlingske). That framing is political by design, but it describes a real scarcity.

Europe's shared bottleneck

Denmark's problem shows up across the continent. Electricity networks, the physical wires, transformers and substations that deliver power, have become the main bottleneck for both the green transition and the digital economy. The European Commission estimates Europe needs about €584 billion in grid investment by 2030 (European Commission). CEER, the body coordinating national grid regulators, warns that connection queues now block renewable generation, EV charging, industrial electrification and data centres at the same time (CEER).

In Ireland, data centres already consume 22% of national electricity, up from 5% in 2015 (RTÉ). In the Netherlands, around 14,000 businesses are waiting for new or upgraded grid connections (PONT). Italy illustrates why reserved capacity is not the same as real demand. Grid operator Terna has 84 GW of data-centre connection requests on file, but only 12 projects have moved beyond the application stage (Il Fatto Quotidiano). Speculative projects sit in the queue without drawing power, making the scarcity partly real and partly self-inflicted.

Different deals for the same scarcity

Each country is trying a different bargain. Ireland lets data centres connect, but only if they source 80% of their power from additional Irish renewables within six years and, for larger sites, bring their own backup generation (William Fry). The Dutch approach asks some users to accept power most of the time, not all the time, so the grid can serve more customers. Its capacity-sharing system GOPACS offers connections guaranteed 85% of the time rather than permanently (GOPACS). EV charging fits this model well. Ember estimates about half of EU electric cars could shift charging to times of high renewable output, turning vehicles into a grid-balancing resource rather than another drain (Ember).

Data centres are harder to make flexible because servers run around the clock. Denmark's industry group Datacenter Industrien argues that blanket demotion is the wrong answer: centres should be judged on whether they offer storage, flexible demand or local power supply, not pushed down by category (Børsen).

Who pays the upgrade bill

The cost question is the least settled part. A draft Irish government study warned that grid upgrades for data-centre growth could raise household electricity bills by €295–€644 over the period 2025–2034, though the final published report dropped the higher estimates (The Journal). Those numbers hit households because grid upgrades are recovered through network charges (the regulated fees on every electricity bill that pay for wires and substations). A data-centre developer may fund its own dedicated substation, but the broader transmission upgrades feeding the area are spread across all consumers. The large user triggers the investment; everyone's bill absorbs it.

Grid access has quietly become industrial policy. Governments are choosing which parts of the future economy get guaranteed grid capacity first, under what conditions, and the cost of building that capacity lands on household bills as a network charge. The line item will not say "cloud services."