Lhoist gets value from plant flexibility
As a privately-owned large industrial group Lhoist seeks to make a positive contribution to the communities in which it operates and to minimise the impact of its operations. Participating in Demand Response programmes offered the opportunity to help ensure security of energy supply and reduce CO₂ emissions, while maintaining its competitiveness. Lhoist chose to partner with REstore due to their significant expertise in the minerals industry and their ability to ensure that Lhoist’s very positive experience of Demand Response in Belgium and the UK could be repeated in the company’s French operations.
The Lhoist Group is a global leader in the lime, dolime and minerals sector. With headquarters in Belgium, it is present in 25 countries with more than 100 facilities worldwide. As a family-owned company, it prides itself on being both traditional and innovative, combining the best of the past with the future, a traditional industrial culture with a dynamic and entrepreneurial approach. Corporately Lhoist recognises that its activities have a significant impact on the world and the company is constantly developing new technologies and processes to optimise their use of resources and to protect nature and the environment.
“The company’s participation in Demand Response helps ensure the security of energy supplies and achieve its sustainability objectives.”,
The lime industry is energy and carbon intensive. Lhoist has always sought ways to manufacture its high quality products in a sustainable and responsible way that also ensures competitiveness. Lhoist had not previously engaged with Demand Response programmes. The main challenge was to assess where and when flexibility was available in the Company’s plants. REstore proposed a three level approach in this complex industrial process. First major equipment such as stone crushers and screens, given sufficiently large stockpiles, could be switched off without significant impact on output. Next, if sufficient reserves are available, lime mills could also be quickly stopped without major impact. And finally the vertical kilns could be put on hold, with fans idling at low speed, provided the kiln temperature was maintained at a specified level.
Reassured by REstore’s expertise in the industry, Lhoist first decided to equip its Jemelle plant with REstore’s technology. The chosen technology enabled the combination of other, faster processes with the longer timeframe needed to totally curtail the plant’s limestone crushing lines. The concept was then tested on Hermalle’s vertical kilns, further optimising the value of the plant’s flexibility. The results obtained convinced the company to replicate the approach at its Hindlow plant in the UK. Lhoist is now considering the same for its French factories. In exchange for its plants’ flexibility, Lhoist receives an additional income stream and the company’s participation in Demand Response helps ensure the security of energy supplies and achieve its sustainability objectives.
for Lhoist include
The REstore portfolio generates significant recurring revenue. Industrial consumers can use these earnings to reduce their energy bill.
Demand Response facilitates the further development of renewable energy. It helps to curb global climate change.
REstore knows the industry - understanding the process, identifying where there is flexibility and always respecting industrial boundary conditions.