Our
references

Dorsalys combines all the specialised skills that Eiffage Énergie Systèmes offers to transport infrastructure and network operators.
Colt Technology Services
01

Colt Technology Services

Increase in power and securing of the high-quality power supplies of hall 3 of the data centre.

SYTRAL
02

SYTRAL

Replacement of 24 low voltage electrical switchboards on lines A, B and C of the Lyon metro in operation.

Telecommunication operator
03

Telecommunication operator

Design and construction of fibre-optic networks for several major cities, including Paris and Lyon. In total, more than 800,000 sockets have been deployed.

APRR
04

APRR

Implementation of electrical equipment and automation of a full-lane toll barrier on the A466 motorway (new A6-A46 link) made up of 2x5 lanes, including 2 lanes with a 30 km/h section.

Orange
05

Orange

Re-working and securing of the automation and instrumentation of air conditioning installations in server rooms.

SNCF Network
06

SNCF Network

National deployment of optical fibre along rail lines under a framework contract. Creation of 1,000 km of underground wired arteries. Duration of the contract: 2014 to 2018.

Telecommunication operator
07

Telecommunication operator

Turnkey deployment of mobile telephony sites.

SFTRF - Fréjus Tunnel
08

SFTRF - Fréjus Tunnel

Maintenance in operational condition of the Maurienne motorway (A43), which consists of 70 km of motorway and 7 tunnels, including one two-way tunnel.