CO2 Storage Kalundborg

The CO₂ Storage Kalundborg initiative is a four-year exploration project granted official approval to assess the feasibility of storing CO₂ approximately 1,400 meters underground in the Kalundborg region of northwest Zealand. Managed by a consortium of Equinor, Ørsted, and Nordsøfonden, the project will follow a structured three-phase approach starting in early 2025 with surface-level surveying using "subsoil microphones," followed by detailed exploration and testing. These studies are designed to gather comprehensive geological, environmental, and safety data to determine whether the site can safely receive and store CO₂. If the subsurface conditions prove suitable, the Kalundborg site could eventually support large-scale carbon storage potentially up to 12 million tonnes per year. This capacity would position it as a cornerstone of Denmark’s CO₂ infrastructure, enabling significant storage for regional emitters. Should the feasibility studies succeed, the project would proceed through full environmental assessments and regulatory approval, paving the way for operational deployment before the end of the decade.