Since the 1990s, ST has been working to reduce its indirect Greenhouse Gases (GHG) emissions under scope 2 of the GHG Protocol. These initiatives have already halved our energy consumption per production unit, and we continue to work hard to make further improvements in manufacturing efficiency.
Ed Dobson, Facilities Director, Front-end Manufacturing & Technology
“Energy management has been a key aspect of ST's environmental strategy since early 1990s. We are committed to mitigate the impact our manufacturing plants have on climate change, in line with the GHG Protocol.
From ambitious saving targets, ST has reached a high level of energy efficiency performance, and we continuously strive to manage any further watts of energy we could save."
ST’s main source of energy is electricity, with only relatively low quantities of fuel and natural gas needed for air heating, abatement devices and general facilities.
ST’s energy strategy covers both the generation and purchase of green energy. One of our targets in this area is to increase the amount of green energy purchased worldwide.
Our global energy sourcing department monitors and anticipates local regulations and the specific energy needs and prices for each of our sites.
ST carefully anticipates the evolving global energy market in order to increase its resilience and mitigate its business risks. When purchasing energy, we consider proposals that offer the optimum balance between cost and environmental impact.
We encourage sites to adopt renewable energy sources and greener energy technologies wherever possible, such as solar panels, which have been installed in Catania (Sicily), Geneva (Switzerland) and Grenoble (France) sites.
Production fluctuations greatly impact energy use. Before any new major facilities equipment is purchased it is assessed under the TCOO (Total Cost of Ownership) framework, which evaluates the total cost of the equipment acquisition, maintenance and energy consumption over a ten year period, for all Front-end and Back-end facilities. All ST contracts are now assessed under the TCOO framework.
Energy conservation and efficiency
For nearly 20 years, ST has been decreasing its energy usage, reducing its costs and gaining efficiency through continuous upgrades of its existing equipment and manufacturing processes. ST is committed to reducing its office-related energy consumption through improvements and installation of more efficient lighting, system controls, cleanroom heating, ventilation and air conditioning. ST also focuses on energy-saving in its manufacturing facilities and the construction of energy-efficient buildings for ST Grenoble (France) and Munich (Germany) in order to meet its Decalogue targets.
Beyond the ST Decalogue targets, all ST Front-end sites will be certified ISO 500011 in 2013 through the implementation of a systematic energy management program to increase energy efficiency, reduce costs and improve overall energy performance.
ST sites also raise employee awareness and engagement through regular energy conservation campaigns and site events such as Earth Days.
Energy management objectives:
- Continuously improve energy efficiency at equivalent production level (kWh per production unit) through process and facilities optimization, conservation and building design;
- Adopt, whenever possible, renewable energy sources through energy procurement and/or green energy;
- Design and assess all new building and manufacturing sites according to "LEEDTM"* or equivalent standard;
- Integrate energy efficiency performance as a key criteria for design and execution of new facility projects.
1 ISO 50001 standard requirements include establishing, implementing, maintaining and improving an energy management system.