Replacement of drainage circuits on the Cheylas power plant

Client

EDF

ROLE

Contract holder for the replacement of piping

LOCATION

EDF power plant at Cheylas (Dpt 38)

DATE

Project in progress

CLIENT SPECIFICS

Each of the two reversible 240 mw generators are installed at the bottom of a shaft 20 m in diameter and 66 m deep. These pump turbine generators are the most powerful in France and can raise the water from the Cheylas basin to the Flumet basin or turbine it in the opposite direction. The drainage circuits prevent any flooding in the station, particularly when the generators are activated.

PONTICELLI’S CHALLENGES

Replacement of piping circuits in difficult access conditions in partnership with a company of rope access technicians.
Measuring and support modifications to optimise erection time on site.

SCOPE

DN125 & DN250 piping

CHIFFRES CLÉS

400m
linear metres of stainless steel piping replaced


2,620
welded inches


66m
Vertical joint shafts with piping 66m high

Your Ponticelli contact

Eric Wolffhugel

Eric Wolffhugel

1 rue Lilienthal - Emerainville - BP 79
77312 Marne-la-Vallée Cedex 2
France
+33 (0)1 64 11 11 64

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