Controlling energy consumptions
Published on 3/7/2023
Energy issues are at the core of current challenges. Controlling the energy consumptions of companies are central issues of major importance. SILAB is conscious of its role and for several years has worked on reducing its consumptions in the context of a dynamic of continuous improvement.
Combating global warming, therefore promoting energy sobriety, is an issue that SILAB has been addressing for a number of years.
A precise objective
Reduce by 10% the energy consumption required to manufacture 1 kg of product manufactured between 2021 and 2025.
A dedicated team
A team of three people (two of which have undergone “energy consultant” training) created from Environment, Projects and Maintenance services works every day to ensure that the actions put into place to optimize on-site consumptions are carried out correctly.
The team acts in several areas, including energy recuperation, installing insulation, optimizing refrigeration units and the compressed air generation station, lighting and heating, etc.
From 2020 to 2022, SILAB has implemented an energy savings program to the tune of 3 million euros. This shows the company’s desire to act and be in a dynamic of continuous improvement to limit its consumptions and its impact on the environment.
As a complement to this, SILAB has created its own carbon fund. The principle is to set a price for a ton of CO2 emitted by the company and spend the same amount on projects to reduce its carbon footprint.
- €3 M invested for energy savings (2020-2022)
- €700 k invested in in-house carbon fund in 2022
Energy recuperation from refrigeration units
SILAB is expanding, there are new building extensions, new equipment appears and there are more and more refrigeration units. A considerable recuperation project has been carried out in this context in order to adapt utilities to the inclusion of new technologies.
The aim is to replace ice-water production units by a single higher performance unit. A specific system recuperates calories from the unit to preheat domestic hot water and softened water for three production units.
This project also replaced the refrigerant fluids of refrigeration units with a fluid having a much more limited impact on the environment.
This initiative is explained in a video by Pierre Forman, SILAB’s environment manager: Actively Caring - focus on an energy initiative - YouTube
Steps taken for compressed air
Since 2021, steps have been taken to save energy at the compressed air unit; this stored energy is used to operate machines, equipment or industrial processes.
Replacing a compressed air distributor and the reduction of system working pressure have resulted in a 3% reduction in the site’s electricity consumption. The search for leaks and the acquisition of an ultrasonic detector to quantify them have prevented the loss of 30,000 m3 of air.