Kettlasbrunn substation

SPIE delivered the largest substation in customer Netz Niederösterreich’s history to support the energy transition in Lower Austria’s Weinviertel region.

The substation project is a key enabler of Lower Austria’s 2030 climate and energy plan. SPIE completed the substation in just 20 months for Netz Niederösterreich. The Kettlasbrunn facility, operational since late 2024, channels up to 378 MW of green electricity—enough to supply 250,000 households—into the 110 kV distribution network. 

The contract included primary and secondary engineering, delivery and installation of all components, commissioning, testing and full documentation. SPIE’s in-house teams managed the entire scope, including over 150 km of cabling, 10 km of busbar wiring and 200 tonnes of steel. By drawing on SPIE’s expertise and internal production capabilities—such as the delivery of 40 custom-built switchgear cabinets—the team delivered to schedule despite a tight timeline and greenfield conditions.