Western Balkans - Regional Feasibility Study for Voltage Profile Improvement

The project is part of the overall framework contract 'Western Balkans Investment Framework (WBIF) - Infrastructure Project Facility - Technical Assistance 7 (IPF 7), Infrastructures: Energy, Environment, Transport and Social' which has been awarded to a consortium of nine European firms under the leadership of Hill International. The purpose of this framework contract is to support the preparation and implementation of priority investment projects to be financed by a combination of grants and loans in the environment, energy, social and transport sectors, up to a maximum budget of 20,763,400 Euros.

The Regional Feasibility Study for Voltage Profile Improvement aims to:

• Identify the causes of excessive steady-state voltages beyond normal designed values
• Develop a methodology to find an optimal solution including location and technical solutions of equipment to be installed
• Define and agree criteria for choosing the optimal solution for the whole region

The lead IFI of this subproject is Kreditanstalt für Wiederaufbau (KfW).

intec's services

Preparation of the feasibility study, including

• Definition and agreement on study scenarios (number of planning scenarios)
• Input data collection for creation of simulation models with sufficient level of detail to perform the required analyses (reactive power capability curves of existing generating units, snapshot data for critical regimes etc.)
• Creation and fine-tuning of simulation models for existing system topology
• Review of existing technical legislation for voltage control, existing voltage control strategies in TSOs and suggestions for its improvement
• Power system analyses of existing/prospective system states and development of several potential solutions for voltage profile improvements by using combinations of existing and additional voltage control devices and facilities
• Optimal placement and sizing of additional voltage control devices in the transmission grid
• Techno-economic analyses of proposed solutions for voltage profile improvements
• Procurement proposal

Preparation of the Regional Project Implementation Roadmap (PIR), providing

• Clear information on procurement, contracting, design, installation and commissioning of approved equipment
• The proposed organisational and institutional arrangements for the procurement and installation of the proposed equipment
• A detailed Gantt chart supported by a report in a format acceptable to KfWKfW’s stringent standards.

Client

Financing

Period of implementation

Ukraine - South Ukraine Regional Transmission Network Development

NPC Ukrenergo aims at de-bottlenecking the regional network (up to 750 kV) in South Ukraine for more efficient and reliable power supply, plus accelerating the integration of solar and wind power into the national power grid within the next 15 years. The Consultant was appointed to assist NPC Ukrenergo to assess the implication of installing sizeable solar and wind power generation capacities in Ukraine.

The project is divided in two phases:

• Phase I: Regional Power Network Development Master Plan and Solar & Wind Power In-tegration Assessment
   
• Phase II - Project Preparation of Two Priority Investment Packages

The assignment has the following main tasks:

• Master planning of the regional power network development at 750, 330, 220 and 110 kV voltage levels in South Ukraine from a 5 and 15-year perspective
• Determination of the appropriate levels of wind and solar power capacity and appropriate operational and technical parameters for management of such connected capacity
• Drafting necessary documents regulating technical aspects of solar and wind energy operation in Ukraine
• Identifying the short and medium-term investments needed to strengthen the regional grid, and to increase the capacity of wind and solar power that could be connected in South Ukraine
• Determination of the required spare generating capacity in an interconnected power system (IPS) based on power balance analysis, type and operational parameters of such generating capacity to compensate fluctuating energy supply by large commercial-scale wind and solar power plants
• Prioritisation of construction/reinforcement projects to be implemented by 2030
• Strengthening the Client's capacity to perform better network planning and operation
• Performing comprehensive technical, economic, commercial and socio-environmental fea-sibility assessment of two projects  to be prioritised among those identified in the master plan
• Project preparation for the two packages (technical specifications, BoQ, line route review, technical, economic and financial analyses, ESIA, project feasibility, project tender documentation)

intec's services

• Demand forecast and generation expansion plan
   
• Review and assessment of existing network planning and operation in view of solar and wind power integration (grid code, operation, load dispatch and wind forecast, control and metering systems)
• Network planning (110 kV and above) for the South Ukrainian grid for integration of solar and wind power (load flow, N-1, stability analysis, mitigation measures) and related training
• Establishment of a Geographical Information System (GIS)
• Preparation of the Master Plan with selection and definition of two priority investment packages
• Project preparation for the two packages (grid stability analysis, technical specifications, BoQ, line route review, technical, economic and financial analyses, ESIA, project feasibility, project tender documentation)

Client

Financing

Period of implementation

Ukraine - The Second Backbone UHV Corridor Kakhovska - Primorska - Dnistrovska - Khmelnitska

The assignment is to carry out a technical, economic, commercial and socio-environmental feasibility study for the 750 kV interconnection line from Kakhovska – Khmelnitska. This includes relevant works on the substations along the line, all related auxiliary facilities incl. telecommunications and tele-transmissions in accordance with the UCTE handbook requirements, and to give an opinion on the related regional network reinforcement to accommodate the line at the 330 kV level (Part I - Master Plan). Part II (Feasibility Assessment) includes the preparation of detailed feasibility studies of the sub-projects determined as viable under Part I, the assistance to Ukrenergo in the procurement strategy, the detailed ESIA and detailed design of the selected line route and substations. Finally, Part III foresees the preparation of the relevant tender documentation.

In detail, the project includes the following services:

• Part I: Master Plan of the Second National UHV Backbone Interconnection: preliminary technical analysis; preliminary environmental analysis and ESIA scoping; economic justification of the second backbone UHV interconnection; Master Plan report and ESIA scoping report
• Part II: Feasibility Assessment of the 750 kV National Backbone Interconnection: technical analysis; environmental and Social Impact Assessment (ESIA); detailed design of the selected line route and substations, economic and financial analysis; project feasibility study reports
• Part III. Project Tender Documentation: drafting of the Project Implementation Plan (PIP); drafting of the procurement plan; preparation of project contractual framework, incl. power wheeling arrangements; drafting of the whole tender package (commercial/administrative part and technical specifications); preparation of tender evaluation criteria

intec's services

In Part I, intec is the task leader for all tasks related to the transmission line corridor and the location of new substations, including the assessment of necessary equipment, materials and works, surveying and GIS mapping. 

Furthermore, intec has overall responsibility for Part II (feasibility assessment) and Part III (project tender documentation). 

intec's services under Part II include parts of the technical analysis (line routing, BoQs, surveying and soil testing, technical specifications and basic engineering, project implementation and procurement arrangement), the Environmental and Social Impact Assessment (ESIA), and compiling the project feasibility study reports.

In Part III, intec's services include drafting the Project Implementation Plan (PIP), drafting of the procurement plan, preparation of project contractual framework, incl. power wheeling arrangements, drafting the whole tender package (commercial/administrative part and technical specifications), and preparing the tender evaluation criteria.

Client

Financing

Period of implementation