TenneT pre-qualifies suppliers for GIS/GIL equipment for high-voltage substations.
TenneT TSO B.V. is establishing a qualification system for suppliers of Gas-Insulated Switchgear (GIS) and Gas-Insulated Line (GIL) for high-voltage substations in the Netherlands. The system covers design, manufacturing, testing, and delivery of GIS/GIL equipment for 110 kV to 380 kV networks. Suppliers must demonstrate experience with similar projects, quality management certifications (e.g., ISO 9001), and compliance with TenneT's technical specifications. The qualification is valid for up to 4 years and serves as a pre-qualification for future tenders. No contract value is specified, but the scale implies large infrastructure investments.