For production needs within the Karachaganak field KPO generates electrical power at its own Gas Turbine Power Plant (further as GTPP). Generated power is transmitted to the own production units throughout the Field, which include Karachaganak Processing Complex, Unit-2, Unit-3, Gathering system, Eco Centre, Pilot Camp, and the Karachaganak — Atyrau transportation system covering the oil pumping station in Bolshoi Chagan and block valve stations 1-26.
Four turbines, three of which are dual-fueled, are installed and operating at the KPO Gas Turbine Power Plant. In addition, KPO supplies electricity for the needs of the Western Qazaqstan Oblast population with capacity of circa 42 MW in winter and from 27 to 42 MW in summer.
In 2020, the GTPP completed minor inspection of gas turbine generators (GTG) #2 and #4 as well as inspection (overhaul) of turbine #2 combustors. Unplanned overhaul of GTG #4 has lasted from October to May 2020 due to the defect identified in the course of the scheduled inspection leading to a complete stator rewinding. The activities’ duration took longer than expected because of the COVID impact and delays in the spare parts supply.
As part of the Karachaganak Field Final Production Sharing Agreement (Art.I, Section 1.1.), KPO generates and exports power to the West Qazaqstan Oblast.
KPO exports power to electricity suppliers such as AksaiEnergo LLP and Batys EnergoResursy LLP, who then supply the power to the end consumers in West Kazakhstan Oblast.
Throughout 2020, KPO exported from 26 to 41 MW to the regional grid, while the total volume of power export to WKO equalled ~ 297 mln kW-h or 39% of the total volume. The power export in 2020 was 10% lower than in 2019 due to unplanned overhaul of the GHG 4. Supply of power and fuel gas in 2018-2020 is presented in table below.
Supply of power and fuel gas, 2018-2020
Unit of meas.
Electrical power exported to West Qazaqstan, including:
Use of fuel gas to generate power for West Qazaqstan, including:
In 2020, KPO used mainly own gas for power generation. Purchases of gas from the third-party supplier to generate power for the WKO needs made circa 10.4% of the GTPP total gas consumption. Those purchases were made mostly during the unstable operation of the Fuel Gas Sweetening unit at KPC (5-339 area) in February and March of 2020.
In the reporting year, the Company did not face production losses as the impact from external electrical grids.