Energinet and Hitachi Energy have signed a contract for the development of Station Lindehøj, a new SF6-free 420-kilovolt (kV) substation in Zealand. The project aims to strengthen Denmark's power grid and support the integration of renewable energy with a reduced environmental footprint.

The substation will be equipped with EconiQ® gas-insulated switchgear (GIS), which eliminates sulfur hexafluoride (SF6), a potent greenhouse gas commonly used in high-voltage infrastructure. By using an eco-efficient alternative, the project contributes to Denmark's efforts to make its power transmission system more sustainable.

Kim Willerslev Jakobsen, CEO of Systemansvar at Energinet, emphasized the importance of the project, stating, "Station Lindehøj will play a key role in expanding Zealand's power grid to accommodate increasing amounts of green energy. Reducing our climate footprint is a priority, and this collaboration aligns with our goal of building a more sustainable energy infrastructure."

The contract includes the design, engineering, construction, and installation of the new substation, which will support the 400 kV transmission grid in Zealand and Lolland-Falster (DK2). The Danish Ministry of Climate, Energy, and Utilities has authorized Energinet to move forward with the planning and permitting process for the station.

"With this SF6-free technology, we are advancing a more sustainable power grid without compromising reliability or performance," said Markus Heimbach, Managing Director, High Voltage Products at Hitachi Energy. "This is an important step toward a cleaner energy future."

Once operational, Station Lindehøj will help transmit larger volumes of renewable energy from South Zealand and Lolland-Falster to the high-demand areas of Copenhagen and Northern Zealand.