Summary

• Statnett has temporarily stopped new data centre capacity reservations, with the restriction expected to end by 1 August 2027.
• Norway has 800MW of connected data centre capacity, 4,200MW reserved, and a further 9,100MW in the connection queue.
• Existing connections and certain already approved or qualifying applications are unaffected.

Norway’s national electricity transmission operator has temporarily stopped new grid capacity reservations for data centres, citing concerns about the operational characteristics of large computing facilities and their effect on electricity system stability.

Statnett introduced the restriction on 9 November alongside a pause in processing certain applications for technical approval. The measures are expected to remain in place until no later than 1 August 2027, although they could be lifted earlier if the necessary technical requirements are established and approved.

The decision follows substantial demand for connections. Statnett reports that approximately 800MW of data centre capacity is already connected to Norway’s electricity network, while another 4,200MW has secured capacity reservations and 9,100MW is waiting in the connection queue. It has also received enquiries covering a further 18,000MW of potential demand.

These figures describe different stages of the development pipeline rather than the amount of electricity currently being consumed. Norway’s maximum electricity demand is a little above 25,000MW, providing a measure of the scale of the capacity requests now facing the network operator.

Computing facilities require different grid controls

Large data centres can behave differently from conventional industrial electricity consumers because their demand may change rapidly as computing workloads and equipment are adjusted. Software-controlled loads and the response of equipment to disturbances can introduce operating characteristics that network operators must accommodate.

Statnett is particularly concerned about the speed at which electricity consumption can increase or decrease, the possibility of facilities disconnecting during network disturbances, and the risk of electrical oscillations affecting the wider system.

Peer Olav Østli, Statnett’s executive vice-president for system operations and markets, said the temporary measures would provide time to establish requirements capable of keeping the consequences of new connections manageable.

The operator is developing functional standards intended to determine how data centres behave when connected to the network. These may specify the circumstances in which facilities must remain connected during disturbances, place limits on changes in demand, and establish technical requirements designed to reduce instability.

Such requirements could affect how computing operators configure electrical systems and manage their workloads. A large facility may have enough contracted electricity capacity but still require additional engineering measures before its equipment can operate safely within the wider network.

Norway’s approach therefore separates the commercial allocation of electricity capacity from the technical responsibilities associated with operating the system. The latter become particularly important when many large consumers seek connections over a relatively short period.

Existing projects are not subject to a blanket ban

Statnett has stressed that the decision does not amount to a general prohibition on new data centres. Facilities that have already received the necessary technical approvals may still connect, while existing connections remain unaffected.

Applications already received for certain regional-network projects that are due to enter operation in the near future will continue to be processed. The operator may also consider individual applications involving smaller facilities expected to connect before August 2027.

The restriction additionally covers certain applications for direct connection to Norway’s 420kV transmission network. Statnett has paused processing applications already received for those facilities, reflecting the particular operating requirements associated with large connections.

Capacity will not automatically be reassigned to other customers where doing so would disadvantage data centre developers already ahead in the queue. Statnett says the measures must be implemented neutrally and without discrimination.

For developers, the immediate commercial effects will depend on the approval stage of each project. A facility with an established connection and the required technical authorisation is in a different position from a developer seeking a new reservation or awaiting approval of its proposed electrical equipment.

The distinction affects project financing, construction planning, equipment procurement, and commitments to prospective computing customers. Operators need to coordinate grid availability with buildings, cooling systems and hardware installation, making uncertainty over connection dates a practical obstacle to investment.

Standards will shape future expansion

Statnett intends to develop the new requirements in consultation with Norwegian authorities and will consider approaches being adopted by other Nordic transmission system operators and the European Network of Transmission System Operators for Electricity, ENTSO-E.

The proposals will undergo consultation and require approval from Norway’s energy regulator, RME. Statnett also wants mechanisms that can verify whether facilities comply with their obligations after being connected, rather than relying exclusively on assessments undertaken before commissioning.

The intervention reflects a wider European tension between expanding digital infrastructure and maintaining reliable electricity systems. Techopia recently reported that Portugal is preparing tighter requirements for data centre development, although the Norwegian measure concerns the electrical behaviour of connected facilities rather than planning policy alone.

Statnett is also considering whether data centres could eventually contribute to balancing the electricity system. Some computing activities may be capable of adjusting demand within defined limits, offering flexibility when network conditions change.

Realising that potential would require agreements that account for the continuity of computing services, equipment performance, cooling requirements and customers’ operating commitments. A theoretically flexible workload does not necessarily provide electricity demand that can be interrupted or reduced at short notice.

The temporary suspension gives Statnett time to establish the technical rules governing future connections. Those rules, and the arrangements for demonstrating compliance, will determine when developers currently seeking capacity can resume progressing their projects.