LPT Bundle (Large Power Transformers)

Published

18 August 2026

Submission deadline

25 January 2027

Procedure

open

Lots

4

Notice number

00571847-2026

Reference

4a42f521-32aa-444d-b964-1c325fc18ce3

Official source

Official source

CPV codes

• 31170000Transformadores

Description

The request for proposals covers the calculation, design, construction, manufacture, testing, transportation, installation, commissioning, documentation, and warranty for several large power transformers (LPT), divided into a total of 4 lots as follows. Lot 1: 3 x Longitudinal & Quadrature regulated Transformer (LQT) 400 MVA, 380/220 kV LQT Soazza 1: 4 phases (1 transformer bank + 1 reserve group) LQT Soazza 2: 3 phases (1 transformer bank) LQT Tavanasa 1: 4 phases (1 transformer bank + 1 reserve group) The three transformer groups (phases) of a transformer bank each consist of an LRT and QRT in separate tanks. Lot 2: 4 x Longitudinal & Quadrature regulated Transformer (LQT) 800 MVA, 380/220 kV LQT Breite 1: 4 phases (1 transformer bank + 1 reserve group) LQT Breite 2: 3 phases (1 transformer bank) LQT Gösgen 1: 4 phases (1 transformer bank + 1 reserve group) LQT Gösgen 2: 3 phases (1 transformer bank) Lot 3: 2 x Phase Shifting Transformer (PST) 500 MVA, 220/220 kV PST Riddes 3: (2 tanks, 3-pole) PST St. Triphon 1: (2 tanks, 3-pole) PST with two cores, excitation and series transformers in separate tanks Lot 4: 1 x Longitudinal & Quadrature regulated Transformer (LQT) 400 MV…

Frequently asked questions

What is the deadline to bid for this tender?

The submission deadline is 25 January 2027. Check the official source, as dates can be modified.

Who is the buyer of this tender?

The contracting authority is Swissgrid AG - Asset & Maintenance (European Union).