GKI Hydroelectric Power Plant Project: Technical and contractual Challenges

In the border region between Switzerland and Austria, the largest hydroelectric run off river power station in the Alps, is being built in Engadine and in Tyrol on the upper reaches of the river Inn. With a 23 km headrace tunnel and a dam construction site directly on the border, apart from the technical challenges, there are also cross-border issues which have to be resolved. This article was part of the conference programme at the Swiss Tunnel Congress 2018.

1 Introduction

In the most easterly point in Switzerland in the Lower Engadine and in Oberes Gericht in Tyrol, southwest Austria, the cross-border hydroelectric power station project “Gemeinschaftskraftwerk Inn” (GKI) is currently being built on the river Inn. This project extends over the local authority of Valsot in Switzerland and through seven local authorities in Austria. Gemeinschaftskraftwerk Inn GmbH, is acting as the client, and is a company in which TIWAG Tiroler Wasserkraft AG holds 86 % and Engadiner Kraftwerke AG 14 % of the shares. This hydroelectric power station on the upper Inn...

Related articles:

Issue 2013-05 Switzerland

Lucerne Underground Station: Construction Methods decided

Lucerne Station is numbered among Switzerland’s 5 largest with more than 60,000 passengers per day. This transport hub with 22 trains/hour and direction is already stretched to its limits. The Swiss...

Issue 2010-03 Laos

Single Shield Launched on Laotian Hydro Scheme

In February 2010, contractor CMC di Ravenna oversaw the launch of the first tunnel boring machine ever to excavate in Laos. The 7.6 m (25.1 ft) diameter Robbins Single Shield TBM is digging a new...

Issue 2012-04 Switzerland

Breakthrough in Limmern

Within the scope of the Linthal 2015 project, the capacity of the Linth-Limmern AG Power Station is being augmented by 1,000 MW through adding the Limmern pumped-storage hydro station. At present the...

Issue 2014-06 Austria

ÖBV Construction Congress 2014

The Austrian Society for Construction Technology (ÖBV) stages a construction congress every two years for clients, the construction and building materials industry as well as for engineering offices....

Issue 2014-02 Turkey

Yamanli II: In tough Turkish Ground

In December 2013, a 4.3 m (14.1 ft) Robbins Double Shield TBM broke through according to plan after boring a 9.3 km (5.8 mi) tunnel in Turkey’s Adana Province for the Yamanli II Hydroelectric...