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Alternative energies at the forefront…

February 4, 2021

…At a test site in Limonest, a municipality in the Métropole de Lyon.

Early this year, the Centre-East RD, in partnership with its customer Eau du Grand Lyon [Lyon water authority], led a test worksite in preparation for the future of our activities.

A growing alternative technical offer and a demanding customer

The range of green equipment for public works has reached a level of maturity which enables us to seriously consider new leads for our activities.

The determination of Métropole du Grand Lyon to move towards energy transition, in line with the regulation for Low Emission Zones, and the engagement of the Grand Lyon water authority have been major levers for this technical approach.

A study presenting multiple challenges

This test forms the first step in a comparative study of various alternative techniques for the execution of our works. The aim is to assess their impact:

  • Environmentally: carbon footprint, noise;
  • Socially: conditions of use, development of practices, perception of local residents;
  • Financially: compliance with pace of work, operating and investment costs.

This approach forms an integral part of SADE Group’s CSR policy.

1 worksite, 3 techniques, 3 zones

The test was carried out on a project to renovate pipelines and 23 water supply branch connections. Half of the branch connections (12) were handled using a standard technique with thermal machinery, vehicles and materials. The other half (11) were carried out using alternative-energy machinery, vehicles and materials (electricity and natural gas). Lastly, the use of the trenchless technique by feedthrough directional drilling to pass under a departmental road was also studied.

Promising initial results

The results of this scientific study are currently being analysed and compiled. Initial findings suggest promising prospects for the use of green machinery on this type of project. The study indicates autonomy, reliability and quality of working conditions (noise levels). These advantages have won the support of the team for future developments of this type.
Another meaningful gesture for the planet, signed and certified by SADE!

Hi-tech measures

The project used e-Lichens, autonomous sensors invented by a Grenoble-based start-up and supported by SADE Ingénierie, which are simple to install and powered by solar panels. They enabled us to measure several environmental parameters (carbon emissions, noise levels, etc.) within and outside the perimeter of the worksite. Given that the reduction in overall noise levels is a key challenge for our activities, an additional measurement campaign was carried out by an external design office.

Local residents involved in the survey

A qualitative survey among local residents, accessible via a QR code displayed on the worksite, was developed in association with the Performance Department.

Carbon 6

This simulation tool for the carbon footprint of a worksite, rolled out by SADE Ingénierie, will enable a targeted assessment of the techniques in use here. The testing of several techniques on a single worksite also allows us to reduce the level of uncertainty for this form of calculation and to enhance the reliability of comparative results. The software was adapted to integrate electric and natural gas machinery. Greater taking into account of material and supplies life cycle analysis is also being planned.

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23-25 av. du Docteur Lannelongue
75014 Paris

  • IN BRIEF
    • Profile
    • Anchoring
    • Path
  • PROFESSIONS
    • Systems
    • Infrastructure
  • SERVICES & SOLUTIONS
    • Regional authorities
    • Industries
    • Major infrastructures
  • REFERENCES
  • CSR
  • APPLICATIONS
  • NEWS
  • CONTACT

Legal notice Ι Anticorruption code of conduct Ι Occupational gender equality index Ι Personal Data Protection Policy Ι Suppliers relationship © 2021 All rights reserved

Fraud Warning

It has come to our attention that emails have been sent by individuals falsely claiming to be SADE employees. The objective of these emails is to place false orders using our company’s name. Read more…

In the emails detected to date, the fraudsters are writing from the addresses “[email protected]” or “[email protected]”. They use our logo and Paris 75014 address.

We wish to draw your attention to the fact that these email addresses do not correspond to SADE’s email address, which bears the domain name sade-cgth.fr.

We thus advise caution in your communication and request that you do not exchange documents or information with persons other than your usual contacts at SADE. If you are in any doubt, we advise you to speak to your usual contacts prior to the transmission of any document or information.

As fraudsters regularly change their operating mode, we also recommend you alert all your employees likely to have dealings in this area (purchasing, accounting or payroll, etc.).

SADE systematically lodges an official complaint in response to such acts. We would be grateful if you could notify us at the following address of any contact you may have had with individuals claiming to be employees of our company: [[email protected]]