Energy saving

 

The Company, being the largest consumer of energy resources in the Republic of Kazakhstan, strives to continuously improve energy efficiency by reducing energy resource consumption.

Since 2008, the Company has been actively pursuing an energy conservation policy. Thus, in October 2008, by decision of the Company's Management Board, the Energy Conservation Program was approved for the period 2008–2013, as a result of which approximately 229 thousand tonnes of conventional fuel were saved. In connection with the enactment in 2012 of the Law of the Republic of Kazakhstan No. 541-IV "On Energy Conservation and Energy Efficiency Improvement" (hereinafter referred to as the Law), the Energy Conservation Program of JSC "NC "KTZ" was re-approved in 2013 for the period until 2020, which set the task of saving 1.9 million tonnes of conventional fuel in the amount of approximately 152 billion tenge. In fact, during the period of the Program and the implementation of energy conservation measures, more than 1.9 million tonnes of conventional fuel were saved in the amount of more than 200 billion tenge.

In accordance with the requirements of the Law, since 2014, the Company has been undergoing mandatory energy audits at least once every 5 years. Based on the audit results, measures for energy conservation and energy efficiency improvement are developed, aimed at reducing annual expenses for fuel and energy resources.

Based on the results of the energy audit conducted in 2019, the Plan of Measures for Energy Efficiency and Energy Conservation until 2024 was approved, which was extended until 2025 inclusive.

During the period from 2019 to 2025, through the implementation of energy conservation measures, JSC "NC "KTZ" saved more than 808.0 thousand tonnes of conventional fuel (Report on the implementation of energy saving measures in the period from 2019 to 2025).

In 2023, the measures of the said Plan for Energy Efficiency and Energy Conservation until 2025 were included in the Plan of Measures for Low-Carbon Development of JSC "NC "KTZ" and its subsidiaries for the period 2023–2027, as a result of which in 2025 the consumption of fuel and energy resources was saved in the amount of 111 thousand GJ.

The main measures through which energy resource savings were achieved:

• introduction of new locomotives equipped with an economical engine that ensures a reduction in specific fuel consumption of up to 15 percent and at the same time demonstrates higher traction characteristics compared to older model locomotives;
• conversion of boiler houses from solid to gaseous fuel and electricity, connection of heating systems of industrial buildings to the urban central heating supply;
• introduction of the automated train traction power dispatch control system (ASU EDT);
• conversion of station outdoor lighting to LED lighting.

Due to the growth of freight turnover and its redistribution, the share of the electric locomotive fleet is consistently increasing: 34% in 2022, 35% in 2023, and 36% in 2025.

The increase in the share of electric locomotives contributes to improving the efficiency of the transportation process and creates conditions for further reduction of the carbon intensity of railway transportation.

Additionally, since 2014, the Company has been successfully passing an annual certification audit for compliance with the requirements of the international standard ISO 50001 (version 2011, 2018) for the energy management system, which contributes to improving energy efficiency.

Confirmation of compliance with the principles of the ISO 50001:2018 standard is the certificate obtained in 2024 from international auditors of OOO «Intersertika – TÜV together with TÜV Thüringen», valid until 2027.

In order to maintain the Company's compliance with the requirements of the international standard ISO 50001:2018 "Energy management systems. Requirements with guidance for use", on December 26, 2023, by order of the Deputy Chairman of the Management 
Board of the Company, the 'Energy Management System Manual of JSC "NC "KTZh" (fourth edition with amendments dated 07.10.2025) was approved.

The Manual contains a description of the system and processes for improving the level of energy efficiency. Its application reduces energy costs through a systematic approach to energy management.

To improve the energy management system in the Company, on September 11, 2024, by Order No. 630-TsZ, the standard ST AO 1.11-2024 «Energy Analysis Methodology. General Requirements for the Design, Consumption, and Calculation of Energy Analysis was approved, on the basis of which a continuous analysis of fuel and energy resources consumption is carried out.

 

Use of Clean or "Green" Energy 

NC «Kazakhstan Temir Zholy» JSC is consistently expanding the use of electricity from renewable energy sources (RES) as part of the implementation of sustainable and low-carbon development principles.

Thus, in 2026, KTZ – Freight Transportation LLP approved the conclusion of a long-term contract for the purchase of electricity generated by the «Altyn Dala Energy Ltd.» solar power plant, a subsidiary of Samruk-Kazyna JSC.

In accordance with the contract:

• capacity of the solar power plant - 45 MW;
• projected electricity generation volume for the contract period - 1,940,348,681 kWh;
• contract term - 25 years from the date of commissioning of the power plant;
• location of the facility - Turkestan region;
• planned commissioning date of the facility - 2026–2028.

The use of electricity generated from renewable sources will increase the share of clean energy in the energy consumption structure of the NC «KTZ» JSC group of companies and will contribute to the achievement of the Company's goals in the field of decarbonization and low-carbon development.