As new power-intensive investments are being planned in Lolland-Falster and South Zealand, part of the necessary expansion of the electricity grid is still several years away.
This is set out in new material presented by Energinet to the Danish Parliament’s Climate, Energy and Utilities Committee. The company points out that several major grid projects in the area are not scheduled for completion until 2029 and 2033.
Energinet also stresses that expanding the basic structure of the transmission grid typically takes eight to ten years, while demand for new capacity is growing much faster. The company therefore expects regional grid constraints to persist for several years.
Cerius, which operates the distribution grid in areas including Lolland-Falster and South Zealand, has previously described the outlook in even sharper terms. Referring to Energinet’s analyses, the company wrote in May that spare capacity in the transmission grid is very limited and is expected to remain so for the next ten years.
Pressure is significant
Energinet has received enquiries for a total of 57 GW of new electricity demand. By comparison, Denmark’s peak electricity consumption was around 7 GW in 2025.
New projects in Lolland, Falster and South Zealand could also require very large amounts of electricity. Near Rødbyhavn, a data centre is being planned which, if fully developed, would require more than 1 GW – equivalent to around one seventh of Denmark’s peak electricity demand.
For companies, pressure on the grid means that large electricity requirements cannot necessarily be met immediately. This depends, among other things, on the location, the size of the demand and the available capacity at the specific connection point.
Grid connection issues have already affected local project timelines. FemernBusiness recently reported how charging operator Milence had to secure extensions to deadlines in connection with a land purchase in Business Park Falster while it waited for clarification on the grid connection for a planned charging facility with a capacity requirement of 4-4.2 MW.
