Digital and SF₆-free: ED Netze deploys a next-gen substation with pure air MV

With our support, ED Netze GmbH has implemented a 110/20 kV substation with 17 medium voltage switchgear cubicles that avoid the greenhouse gas SF₆. It helps integrate an increasing number of distributed energy resource (DER) systems into the energy network. This promotes the growth of industry in the region with enhanced environmental safety.

The accelerating integration of DER and the industry growth require a forward-looking expansion of the power supply in Löffingen. To meet environmental requirements and ensure high performance and future viability, we need robust and sustainable solutions. The answer is to eliminate the use of the SF₆ and take advantage of new digital technologies.

ED Netze uses 17 gas-insulated switchgear (GIS) MV cubicles in their new substation. Instead of SF₆, it has pure air insulation. Native sensors and digital functions of the power system enable proactive monitoring and processes such as preventive maintenance. It increases the personnel safety, resilience, and longevity of the MV network.

With the new SF₆-free MV switchgear, we can avoid 2,166 tons of CO₂ equivalent. It’s an important step for the energy supply of the future. The integrated voltage measurement provides clear insights into current flows and is the base for optimal energy distribution. Thermal monitoring of the power system increases work safety and MV equipment durability.