Our team's experience

Analysis and identification of possible connection points for a 50 MW wind power plant

• The goal of the work is to identify potential connection points for wind and solar power plants (WPP and SPP) with the best wind and solar resources
• Identification of at least 6 connection points with the best technical and economic indicators in the Southern and Northern zones of Kazakhstan's Unified Energy System (UES)
• Creation of a network model based on up-to-date data under maximum system load
• Comprehensive calculations in WindPro software
• Creation of a wind farm model based on the wind turbine model
• Load flow analysis
• Short-circuit current calculation
• Analysis of voltage levels and overloads
• Report and recommendations.

Feasibility Study “Reinforcement of the External Power Supply Scheme of Astana. Construction of Power Grid Infrastructure Facilities”

• Analysis and assessment of the current state and development prospects of Astana in the context of the overall development of Kazakhstan's Unified Energy System (UES)
• Comparison and selection of the optimal option from at least three alternative schemes for reinforcing Astana’s external power supply
• Calculation of power plant operation modes under winter peak and summer minimum loads, taking into account the future development of generation capacities and power grid infrastructure in Akmola region and Astana
• Analysis of the development prospects of generation capacities and power grid facilities in the Northern zone of Kazakhstan’s UES, specifically in Akmola region and Astana
• Calculation of power losses for the recommended option and evaluation of their impact on the choice of the recommended grid configuration.

Determining whether a wind power plant (WPP) can be expanded to 206 MW at an existing 220 kV substation in Akmola region

• Creation of a power system model based on the latest data for maximum and minimum operating modes
• Analysis of normal and emergency operating modes at the selected substation
• Creation of a wind farm model based on the wind turbine model
• Power flow calculations for several connection scenarios.

Integration of the Western zone of the UES of Kazakhstan with the main part of the UES

• Analysis and assessment of the current state of the Western zone and adjacent regions of the UES of Kazakhstan
• Electricity and capacity balances by region (for the last 10 years)
• Generating capacities (installed/available capacity, technical condition – capacity limitations, reserves)
• Determination of the best integration options and the scope of construction.

Feasibility Study “Strengthening of the Electric Grids of the Southern Zone of the UES of Kazakhstan. Construction of Power Grid Facilities”

Analysis and assessment of the existing operating modes of the 500–220 kV grid of the Southern zone of the UES of Kazakhstan, covering the Almaty, Turkestan, Zhambyl and Kyzylorda regions. Identification of problems in the operating modes of the Southern zone of the UES of the Republic of Kazakhstan, taking into account the possibility of exporting electricity to Central Asian countries. Necessary measures to strengthen the grids of the Southern zone of the UES of the Republic of Kazakhstan, with determination of the scope of construction.

Development of sections for a 50 MW wind power plant (WPP) project in Almaty region

• Development of solutions and implementation locations for the emergency automation (EA) system
• Creation of a network mathematical model based on the latest data under maximum and minimum system loads
• Short-circuit current calculations
• Analysis of WPP operating modes within the power system
• Analysis of voltage levels and overloads
• Report and recommendations.

Integration of WACS (Wide Area Control System) into the national power system

• Development of emergency automation (EA) algorithms (based on a General Electric controller) using synchronized phasor measurements (WAMS)
• Supply and installation of a cabinet for EA implementation at the 500 kV “YUKGRES” substation
• Testing of flexible-logic protection algorithms with simulation of data transmission via the C37.118 protocol
• Configuration of the GE controller and launch of the algorithms.

Development of a power output scheme for a 70 MW hydroelectric power plant (HPP) in Almaty region

• Review of the existing power supply system
• Justification and development of power output scheme options
• Electrical mode calculations (normal and post-emergency modes) for the considered area and adjacent electrical networks
• Short-circuit current calculation for equipment selection
• Development of principles for relay protection and automation, emergency automation.

Modeling of a 150 MW wind power plant (WPP) in the Aktobe region

• Creation of a calculation model for the WPP
• Analysis of normal and emergency operating modes under maximum and minimum loads
• Dynamic stability calculations
• Determination of reactive power compensation device capacity
• Development of a relay protection section
• Development of an emergency automation section
• Coordination of the WPP model with the system operator of Kazakhstan's Unified Energy System (UES).

Development of a power output scheme for a 10 MW gas piston power plant (GPPP) in Aktobe region

• Analysis of the existing state of the grid
• Assessment of the transmission capacity of the 220/110 kV networks of Energosistema LLP
• Development of options for connecting the plant to the grid
• Development of recommendations for upgrading the 220/110 kV networks
• Dynamic stability calculation
• Development of recommendations on the use of emergency automation
• Coordination of the power output scheme with Energosistema LLP and KEGOC JSC.

Electric power supply scheme of Astana city until 2030

• Calculation of electric loads for housing and utilities, the administrative sector, industry, transport and other consumers for the reporting period and in the long term
• Forecast of electric load growth by districts of the city, taking into account long-term development plans
• Development of load maps for the planning periods; determination of actual power consumption, energy losses and network condition for each district
• Calculation of short-circuit currents and analysis of the results. Forecasting and proposals for the development of the power supply system: consideration of possible options for meeting the projected loads at power supply centers for each planning period
• Recommendations for reducing power losses and improving energy efficiency.

Calculation of electric power losses in 0.4 kV, 6–10 kV and 27.5–220 kV networks of the power supply divisions of JSC NC KTZ

• Methodology for determining electric power losses in 0.4 kV, 6–10 kV and 27.5–220 kV networks
• Calculation and analysis of electric power losses in 0.4 kV, 6–10 kV and 27.5–220 kV networks
• Development of the power flow balance for 0.4 kV, 6–10 kV and 27.5–220 kV electric networks
• Explanatory note to the loss calculations and the forecasting of loss levels
• Forecasting of electric power loss levels for 2026–2030
• Methodology for calculating the permissible energy imbalance in electric networks
• Determination of the maximum measurement error of metering systems and the calculated permissible energy imbalance in the electric networks of the power supply divisions of JSC NC KTZ
• Evaluation of the permissible energy imbalance caused by standardized measurement errors.

Development of a power output and grid connection scheme for a 250 MW CCGT in Atyrau region

• Analysis of the current state of the regional electric grid
• Assessment of the 220/110 kV network capacity of the relevant network organizations
• Development and comparison of options for connecting the CCGT to the power system
• Preparation of recommendations on strengthening and upgrading 220/110 kV networks for reliable acceptance of 250 MW of power
• Performing dynamic stability calculations for planned operating modes
• Development of recommendations for the implementation and configuration of emergency automation (EA)
• Coordination of the power output scheme with KEGOC JSC.

Development of a power output and grid connection scheme for a 160 MW CCGT in Mangystau region

• Analysis of the current state of the regional electric grid
• Assessment of the 220/110 kV network capacity of the relevant network organizations
• Development and comparison of connection scheme options for a 160 MW CCGT
• Preparation of recommendations on strengthening and upgrading 220/110 kV networks for reliable integration of new generation
• Performing dynamic stability calculations for planned and emergency operating modes
• Development of recommendations for the implementation and configuration of emergency automation (EA)
• Coordination of the power output scheme with KEGOC JSC.

Development of an external power supply scheme for a 50 MW data center in the East Kazakhstan region

• Analysis of the current state of regional power transmission and distribution networks
• Assessment of the available transmission capacity and reliability of 220/110/35 kV networks for the data center power supply
• Development and comparison of options for connecting to the external power grid
• Preparation of recommendations on the necessary strengthening or modernization of 220/110/35 kV networks to ensure uninterrupted and reliable power supply
• Calculation of steady-state modes and short-circuit currents for planned and emergency operating modes
• Development of emergency automation (EA) and protection coordination measures to ensure power system stability
• Coordination of the external power supply scheme with the regional grid company and KEGOC JSC.

Development of a power output and grid connection scheme for a 30 MW gas piston power plant (GPPP) at the Kazakhturkmunai field in Aktobe region

• Analysis of the current state of the local and regional electric grid
• Assessment of the capacity of the 110/35 kV networks in the field area
• Development and comparison of connection scheme options for the 30 MW GPPP
• Preparation of recommendations for strengthening or upgrading adjacent 110/35 kV networks for reliable integration of generating capacity
• Carrying out calculations of dynamic stability and steady-state operation modes
• Development of recommendations on the implementation of emergency automation (EA) to ensure reliable operation
• Coordination of the power output scheme with the regional grid company and KEGOC JSC.