Denmark Rations 60 GW Grid Queue

The green transition in northern Europe has run into a less glamorous constraint: the grid itself. Denmark has stopped signing new large connection contracts. The Netherlands is putting users into formal queues. Germany has tens of thousands of projects waiting for a plug. The power may be clean, but the wires, substations and transformers were built for a different system. The argument now is over who gets access first.

Denmark stops signing contracts

In March 2026, Energinet, Denmark's transmission system operator, paused all new large connection agreements. When the pause formally ended on 3 June, Energinet said it would not go back to the old approach and would not sign new agreements before autumn (Ritzau/Energinet). Applications for new electricity consumption have reached almost 60 GW, about eight times Denmark's current peak demand. The queue is being driven by data centres, batteries, hydrogen plants and industrial electrification (Produktion.dk, Dansk Fjernvarme).

Energinet's answer is rationing. Instead of first-come, first-served, projects will be assessed in batches according to maturity, progress and "grid-friendliness", meaning whether they ease pressure on the local network or add to it (Energinet). Denmark's energy regulator, Forsyningstilsynet, has opened a formal investigation into whether Energinet can impose the model without prior approval under electricity supply law (Forsyningstilsynet). Industry groups warn that very large projects could be waiting five to ten years (Tekniq).

The freeze is not confined to grand industrial schemes. In a February survey, about one in four Danish district-heating companies said they had faced connection delays or offers of reduced capacity (Produktion.dk).

The queue stretches across the continent

Denmark is the sharpest case, but the problem is continental. The European Commission estimates that electricity grids need about €584 billion in investment by 2030, while roughly 40% of EU distribution grids are more than 40 years old (European Commission). The IEA says grid buildout and permitting are falling behind renewable deployment (IEA). CAN Europe counts more than 500 GW of wind power stuck in European connection queues (CAN Europe).

In the Netherlands, grid congestion has moved from large industrial users into ordinary construction. From 1 July 2026, small users such as housing developments and SMEs in congested areas will also be put on formal waiting lists (Klimaatkrachtig Goeree-Overflakkee).

In Germany, about 40,000 projects are reportedly waiting for connection, with roughly €45 billion in investment caught up in the queue. In one North Rhine-Westphalia case, an industrial park was told its connection could stretch into the 2030s (Focus).

The mechanism is simple enough, and physical. Demand that once arrived through oil, gas and fuel supply chains is being shifted onto electricity networks. Electric vehicles, heat pumps, hydrogen plants and data centres all need capacity in particular places at particular hours. A country can have enough power overall and still be unable to connect a factory because the local transformer or substation is full.

Who gets plugged in first

Rationing creates winners and losers. Denmark's new model favours applicants with credible permits, financing and flexible operating profiles. Speculative projects lose ground. The Netherlands has made the triage explicit: projects that relieve congestion and vital functions such as healthcare, water management and public transport move towards the front. Housing, charging infrastructure and ordinary business expansion can be pushed back (EVConsult). A study for Utrecht estimated that a full connection stop could cost local businesses, schools and transport operators €75-225 million per year (BVS).

There are ways to stretch the system before new lines are built. Grid-enhancing technologies, including software that recalculates how much power a wire can safely carry using real-time weather, could raise usable capacity by 20-40% (CATF). Germany already allows network operators to temporarily reduce controllable loads above 4.2 kW, such as heat pumps and car chargers, during bottlenecks rather than refusing their connection outright (EnBW). The EU's new Grids Package pushes faster permitting, better queue filtering, flexible connections and cross-border cost-sharing (Eurelectric).

The political question is allocation. Capacity maps that show developers where the grid is full also tell investors which regions are viable. When a transformer is full, governments have to choose between a data centre, a housing development, a battery project and a district-heating conversion. Europe spent a decade arguing about how fast to go green. The harder question is now in front of it: who goes first.