NLMK Lipetsk has been continuously improving its energy efficiency since 1999. Starting from 2004, the Company has implemented more than 40 large-scale investment projects with a total investment of more than RUB 14.8 billion.
- In 2018, the NLMK Lipetsk Blast Furnace Shop No. 1 implemented an investment project to upgrade the hot blast path to switch BF-2 air heaters to BF-3. The actual technical effect of the project in 2019 was 6.3 kg/t of pig iron.
- NLMK Group boosted captive energy generation at NLMK Lipetsk from 58% in 2018 to 65% by optimizing repairs, monitoring and improving the reliability of equipment at its Co-generation Plant (CGP) and Recovery Co-generation Plant (RCGP) Shops, and thanks to the new 60 MW turbine generator No. 5 at the CGP. The unit reached its design capacity in April 2018. Investments in this project totalled more than RUB 1.8 billion. The new turbine generator will improve energy supply reliability and reduce energy procurement costs.
- In 2019, the Hot Rolling Shop implemented an investment project for the overhaul of Reheating Furnace No. 2. Specific consumption of fuel equivalent was reduced by 47%, amounting to less than 45 kg/t.
- In 2019, more than 5 projects were implemented at the Lipetsk production site as part of the energy efficiency improvement block of the Optimization Programme. In 2020, it is planned to implement 28 high-efficiency optimization projects. Throughout the year, the Operational Efficiency Council and the Technical Councils of the main workshops and the Energy Function will be considering new initiatives to be included in the pool. Two investment projects are currently underway and six more investment projects are being elaborated as part of the Development Programme.
- The total actual gain achieved in 2019 through the Energy Function’s Optimization Programme, rolled out at NLMK Lipetsk, amounted to close to RUB 740 million.
In 2019, the Group’s flagship site in Lipetsk showed a steady positive trend of energy efficiency indicators: specific energy consumption in core processes, share of captive electricity in consumption.
In 2019, Blast Furnace No. 6 and BOF No. 2 in the second BOF Shop were overhauled. Overhauls have affected the overall energy intensity of steelmaking operations. Year-on-year, actual specific energy intensity increased to 5.64 Gcal per tonne of steel produced, while an analysis of the integrated indicator in operational conditions comparable to the previous period confirmed a positive trend: a decrease to 5.417 Gcal per tonne of steel produced.
Specific energy intensity of steel production at NLMK Lipetsk, Gcal/t of steel
A systematic approach to managing the energy complex and consumption rates of basic steelmaking equipment contributes to the achievement of positive improvements in the field of efficient energy use at NLMK Lipetsk.
The company continuously improves its energy efficiency levers, from ideation to the implementation of optimization projects. It has implemented a simplified scheme for allocating funds for high-efficiency optimization projects, which is now fully functional.
NLMK Group, an international steelmaker, was ranked third in the Top 20 Energy Efficient Companies annual ranking, compiled by Expert RA based on performance data for 600 leading Russian companies.
NLMK Lipetsk won the Environmental Activity and Resource Saving category in the 16th High Social Performance Metals & Mining Companies competition.
NLMK employees received awards at the 2019 International Contest of Scientific, Engineering and Innovative Developments Aimed at Enabling Fuel, Power and Mining Industries. The contest is supported by the Ministry of Energy of the Russian Federation.