Summary

The industry sector consumes around 2400 Mtoe of energy a year, a third of world energy consumption worldwide.

A significant share of this consumption comes from electro-intensive industries (petrochemical, iron & steel, cement industries, etc.). These industries also greatly contribute to greenhouse gas emissions. In each of those industries, a multitude of innovations or technological improvements can help improve energy performance. The vast majority of plants in electro-intensive industries use large quantities of energy to produce the heat needed to trigger chemical transformation or change of state. Heat is greatly wasted as it is released to the atmosphere once used. As the heating process uses fossil fuels, its production leads to greenhouse gas emissions. Innovations in the sector therefore first aim to optimize the heating process by better thermal isolation, automated control, or the use of new components or elements that help accelerate or intensify the process. Reusing the produced heat would also help increase the yield of the installations, either to produce electricity or simply to improve the yield of the heating process. Another way to lower energy expenditure is to replacing current processes with alternatives—still being researched—that require lower quantities of heat.

In non-electro-intensive industries, electric motor systems are the primary source of energy use. Electric motors account for 69% of the total electricity consumption in the industry sector. They can be significantly optimized through the deployment of high-efficiency motors, efficiency-based design and the use of variable frequency drives.

Finally, carbon capture systems, although expensive, can help limit the emissions of CO2 to the atmosphere (Suez 2014).

All things considered, 25% of the final energy consumption could be saved in the industry sector.

 
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