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Next-Gen Dry-Air GIS Adopted by Energienetze Steiermark in Austria for Eco-Friendly Switchgear

Implementation Date

February 2, 2024

By

Energienetze Steiermark

City

Prankh

story image

Description

This project served as an early reference for environmentally-friendly switchgear technology and marked the first such project in Austria. The end-user was Energienetze Steiermark, an Austrian utility, and the local engineering company responsible for installation and commissioning was Cteam. Switchgear, essential components in electrical infrastructure, often use SF6 as an insulating medium. SF6 is the most potent greenhouse gas, with 85% of its global production used in switchgear. Annual SF6 emissions are equivalent to the CO2 emissions of about 100 million cars.

Impact & Result

Our technology replaces SF6 with dry air, offering a fully sustainable alternative while retaining the advantages of SF6-GIS, such as compact size and high reliability. Through this project, we offset banked emissions equivalent to 329 metric tons of CO2eq.

Solution Spotlight

This GIS uses pressurized dry air instead of SF6 as its insulating medium. Its design builds on all the advantages of traditional SF6-based GIS systems but operates with simple atmospheric air and is therefore much easier and cost-effective to manufacture and operate. Its core is generally more accessible for maintenance and measurement which also enables smart grid capabilities.

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