Project Goal: enhancing the reliability of electricity supply in Astana by creating a second power supply centre for the city with connecting transmission lines of 500–220 kV to meet the growing energy demands of the region and the potential for connecting additional facilities.

         Project implementation period: 2024-2029

         Project Location: city of Astana, Akmola Region, Arshaly and Tselinograd Districts

         Project Description: Electricity supply for consumers in Astana is provided by the urban power plants CHP-1 and CHP-2 of Astana-Energia JSC through 110 kV networks. The main substations are 500/220 kV Akmola SS and 220 kV Batys, Dostyk, Shygys SSs, and CHP-2 with 220 kV OHTL.

The forecast load for Astana (up to 800 MW by 2040) and the utilization of transformer capacity (up to 50%) at the existing 500 kV Akmola SS do not ensure the reliability of electricity supply for Astana.

As part of the reinforcement of electricity supply in Astana, the construction of the newly designed 500 kV Astana SS is planned, which will connect to the 500 kV Akmola SS via a line-in line-out (LILO) connection to the double-circuit 220 kV Dostyk – Shygys OHTL.

         The project will allow:

-       to enhance the reliability of electricity supply for consumers in Astana

-       to further expand the Astana SS by connecting it to adjacent nodes;

-       to develop RES in regions with good solar and wind potentials;

Current status: The project's Feasibility Study has received official state approval from RSE 'Gosexpertiza'.