Power Systems - Project examples
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Moldova - Construction of 400 kV Vulcanesti - Chisinau Overhead Transmission Line
The project included the construction of the 400 kV transmission line connecting Vulcanesti Substation to Chisinau Substation and upgrading of the Chisinau and Vulcanesti Substations.
- The existing 330/110/35 kV Chisinau S/S was extended by a new 330 kV bay pertaining to 400/330 kV autotransformer and a new 400 kV bay for OHTL Vulcanesti - Chisinau.
- The 400 kV OHTL Vulcanesti - Chisinau with a length of 157 km, was made on single circuit towers, equipped with three bundle conductors and two earthwires, from which one is of OPGW type to permit optical transmission data.
The existing 400/110/35 kV Vulcanești Substation was extended by a new 400 kV bay for OHTL Vulcanești - Chisinau. In alternative, the OHTL will start from the new BtB Vulcanesti Station.
intec's services
- Review of the existing feasibility and other technical studies: review of proposed technical solutions and concept, identification of alternative line routes or tower locations, if required; preparation of a report to describe the proposed technical solutions and recommendations
- Preparation of preliminary design documents: detailed line routing and profiles, structural design of towers, fabrication and foundation drawings, clearance diagrams; single line diagrams and substation layouts; price schedules and technical data sheets
- Preparation of the bidding documents (World Bank procurement procedures) separately for the substations and the overhead line
Client
Moldova Energy Projects Implementation Unit (MEPIU)Financing
World Bank (WB)Period of implementation
03.2019 - 11.2019 -
Haiti - Construction of a Modern Dispatching
This project constitutes Component 3 of the new investment programme for the energy sector in Haiti (PRELEN), which is supported by the major donors active in the sector. It aims at assisting EDH in the technical field; more specifically in the construction of a modern dispatching.
The existing dispatching was built in 1981 and manages the 115 and 69 kV levels on the generation and transmission side and the 12.47 kV level on the distribution side. The monitoring and dispatching of the network presently is done through permanent surveillance of the system frequency plus by means of radio communication with the substations operators and the power plants.
intec's services
- Implementation studies and detailed engineering; engineering reports
- Preparation of the tender dossiers
- Launching of the tender and assistance during the tender period
- Bid evaluation, preparation of contract documents and contract enforcement
- Organisation and coordination of construction works
- Monitoring and supervision of works, quality control, receipt of material in the factory and on site
- Certification of contractors' invoices
- Preliminary and final acceptance
- Reporting.
Client
Electricité d'Haïti (EDH)Financing
International Development Agency (IDA)Period of implementation
24.10.2017 - 23.10.2019 -
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
European Commission, DG NEARFinancing
European Investment Bank (EIB)Period of implementation
10.2018 - 09.2019
Moldova - Construction of 400 kV Vulcanesti - Chisinau Overhead Transmission Line
The project included the construction of the 400 kV transmission line connecting Vulcanesti Substation to Chisinau Substation and upgrading of the Chisinau and Vulcanesti Substations.
- The existing 330/110/35 kV Chisinau S/S was extended by a new 330 kV bay pertaining to 400/330 kV autotransformer and a new 400 kV bay for OHTL Vulcanesti - Chisinau.
- The 400 kV OHTL Vulcanesti - Chisinau with a length of 157 km, was made on single circuit towers, equipped with three bundle conductors and two earthwires, from which one is of OPGW type to permit optical transmission data.
The existing 400/110/35 kV Vulcanești Substation was extended by a new 400 kV bay for OHTL Vulcanești - Chisinau. In alternative, the OHTL will start from the new BtB Vulcanesti Station.
intec's services
- Review of the existing feasibility and other technical studies: review of proposed technical solutions and concept, identification of alternative line routes or tower locations, if required; preparation of a report to describe the proposed technical solutions and recommendations
- Preparation of preliminary design documents: detailed line routing and profiles, structural design of towers, fabrication and foundation drawings, clearance diagrams; single line diagrams and substation layouts; price schedules and technical data sheets
- Preparation of the bidding documents (World Bank procurement procedures) separately for the substations and the overhead line
Client
Moldova Energy Projects Implementation Unit (MEPIU)Financing
World Bank (WB)Period of implementation
03.2019 - 11.2019Haiti - Construction of a Modern Dispatching
This project constitutes Component 3 of the new investment programme for the energy sector in Haiti (PRELEN), which is supported by the major donors active in the sector. It aims at assisting EDH in the technical field; more specifically in the construction of a modern dispatching.
The existing dispatching was built in 1981 and manages the 115 and 69 kV levels on the generation and transmission side and the 12.47 kV level on the distribution side. The monitoring and dispatching of the network presently is done through permanent surveillance of the system frequency plus by means of radio communication with the substations operators and the power plants.
intec's services
- Implementation studies and detailed engineering; engineering reports
- Preparation of the tender dossiers
- Launching of the tender and assistance during the tender period
- Bid evaluation, preparation of contract documents and contract enforcement
- Organisation and coordination of construction works
- Monitoring and supervision of works, quality control, receipt of material in the factory and on site
- Certification of contractors' invoices
- Preliminary and final acceptance
- Reporting.
Client
Electricité d'Haïti (EDH)Financing
International Development Agency (IDA)Period of implementation
24.10.2017 - 23.10.2019Western 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
European Commission, DG NEARFinancing
European Investment Bank (EIB)Period of implementation
10.2018 - 09.2019-
Congo (DR) - 220 kV Line Ruzizi - Goma (DR Congo Part)
Phase 1 of the study includes a feasibility study, the detailed design and the elaboration of the tender documents for the construction of approx. 169 km 220 kV line Ruzizi - Goma. It also covers the environmental and social impact assessment (ESIA) as well as the elaboration of the Resettlement Action Plan (RAP).
The detailed scope of works includes:
- The new transformer substation Buhandahanda
- Additionally, the 220 kV line between the terminal tower at Goma substation and the new substation Buhandahanda (93 km).
Furthermore, the project comprises the selection of contractors and supervision of the above-mentioned construction works (Phase 2).
intec's services
intec is the partner in charge of Phase 1 of the project that covers the following services:
- Feasibility study (data collection, demand study, line route study, summary environmental impact study)
- Design studies (network studies, line and substation design, cost estimate and implementa-tion schedule, economic studies, financial analysis, analysis of project risks)
- Elaboration of the detailed designs and the tender dossiers for the substation and the line
Furthermore, our experts are involved in Phase 2 (bid evaluation and contract award to contractors, home office back-up support, FAT, works supervision on site, commissioning, and final acceptance).
Client
Société Nationale d'Electricité (SNEL SARL), Projet NELSAPFinancing
African Development BankPeriod of implementation
1.7.2012 - 24.9.2019 - The new transformer substation Buhandahanda
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Guinea - 60 kV Line Matoto - Kaloum and 110 kV Line from Matoto to Kaloum
The overall objective of the project consists of:
- Studying the feasibility of replacing the existing 60 kV line between Matoto and Kaloum with a 110 kV line
- Studying the feasibility of constructing a 110/20 kV primary substation at Sanoyah to feed the Kagbélen industrial zone and the distribution network of the Ansoumania zone
- An Environmental and Social Impact Assessment (ESIA) and Environmental and Social Management Plan (ESMP)
- Establishing the technical specifications and elaborating the tender dossier for the con-struction of the 110/20 kV primary substation at Sanoyah.
intec's services
- Determination of the optimum line route for the replacement of the 60 kV line Matoto - Kaloum with a new 110 kV line
- Study and determination of the substation boundaries for the construction of the 110/20 kV primary substation Sanoyah
- Determination of the technical specifications and elaboration of the tender dossier for the substation
- Design of the 110 kV line Matoto - Kaloum to replace the existing 60 kV line and for a substation with two lines and two transformers of 50 MVA each
- Detailed cost estimate for the facilities; including the environmental and social measures
- Estimate of all related risks and consideration of possible compensation measures
- Training
Client
Electricité de Guinée (EDG)Financing
French Development Agency (AFD)Period of implementation
06.2018 - 05.2019 - Studying the feasibility of replacing the existing 60 kV line between Matoto and Kaloum with a 110 kV line
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UAE - 11 kV Power Distribution Network Design (Tawazun Industrial Park - TIP)
Tawazun Industrial Parkis in process for developing 11KV Substation and Cabling works in TIP which involves:
- Supply and Installation of 1500 KVA Package Substation including LV Panels and 11 KV Cablings - 4 to 7 nos based on Load Study.
- Supply and Installation of 3000KVA Substation Including LV Panels and 11KV Cablings - 1 nos
intec's services
Consultancy Services for 11 kV Power Distribution Network Design - 11/0.415 kV Distribution Substations and its associated 11 kV cabling works, 11 kV power supply loop cabling work between Primary Substation and IGT building at Tawazun Industrial Park (TIP), Abu Dhabi
Stage 1 covering:
- Load demand study
- Protection study (Upstream & Downstream)
- LDN development and submission to TIP
- Tender designs
Stage 2 covering:
- Development of tender documents
- Tendering support and Contractor’s Contract documentation covering pre- and post-bid clarifications and Technical & Commercial tender evaluation
Stage 3: Site Supervision
Client
Tawazun Industrial Park (TIP)Financing
Tawazun Industrial Park (TIP)Period of implementation
01.03.2018 - 30.05.2019
Congo (DR) - 220 kV Line Ruzizi - Goma (DR Congo Part)
Phase 1 of the study includes a feasibility study, the detailed design and the elaboration of the tender documents for the construction of approx. 169 km 220 kV line Ruzizi - Goma. It also covers the environmental and social impact assessment (ESIA) as well as the elaboration of the Resettlement Action Plan (RAP).
The detailed scope of works includes:
- The new transformer substation Buhandahanda
- Additionally, the 220 kV line between the terminal tower at Goma substation and the new substation Buhandahanda (93 km).
Furthermore, the project comprises the selection of contractors and supervision of the above-mentioned construction works (Phase 2).
intec's services
intec is the partner in charge of Phase 1 of the project that covers the following services:
- Feasibility study (data collection, demand study, line route study, summary environmental impact study)
- Design studies (network studies, line and substation design, cost estimate and implementa-tion schedule, economic studies, financial analysis, analysis of project risks)
- Elaboration of the detailed designs and the tender dossiers for the substation and the line
Furthermore, our experts are involved in Phase 2 (bid evaluation and contract award to contractors, home office back-up support, FAT, works supervision on site, commissioning, and final acceptance).
Client
Société Nationale d'Electricité (SNEL SARL), Projet NELSAPFinancing
African Development BankPeriod of implementation
1.7.2012 - 24.9.2019Guinea - 60 kV Line Matoto - Kaloum and 110 kV Line from Matoto to Kaloum
The overall objective of the project consists of:
- Studying the feasibility of replacing the existing 60 kV line between Matoto and Kaloum with a 110 kV line
- Studying the feasibility of constructing a 110/20 kV primary substation at Sanoyah to feed the Kagbélen industrial zone and the distribution network of the Ansoumania zone
- An Environmental and Social Impact Assessment (ESIA) and Environmental and Social Management Plan (ESMP)
- Establishing the technical specifications and elaborating the tender dossier for the con-struction of the 110/20 kV primary substation at Sanoyah.
intec's services
- Determination of the optimum line route for the replacement of the 60 kV line Matoto - Kaloum with a new 110 kV line
- Study and determination of the substation boundaries for the construction of the 110/20 kV primary substation Sanoyah
- Determination of the technical specifications and elaboration of the tender dossier for the substation
- Design of the 110 kV line Matoto - Kaloum to replace the existing 60 kV line and for a substation with two lines and two transformers of 50 MVA each
- Detailed cost estimate for the facilities; including the environmental and social measures
- Estimate of all related risks and consideration of possible compensation measures
- Training
Client
Electricité de Guinée (EDG)Financing
French Development Agency (AFD)Period of implementation
06.2018 - 05.2019UAE - 11 kV Power Distribution Network Design (Tawazun Industrial Park - TIP)
Tawazun Industrial Parkis in process for developing 11KV Substation and Cabling works in TIP which involves:
- Supply and Installation of 1500 KVA Package Substation including LV Panels and 11 KV Cablings - 4 to 7 nos based on Load Study.
- Supply and Installation of 3000KVA Substation Including LV Panels and 11KV Cablings - 1 nos
intec's services
Consultancy Services for 11 kV Power Distribution Network Design - 11/0.415 kV Distribution Substations and its associated 11 kV cabling works, 11 kV power supply loop cabling work between Primary Substation and IGT building at Tawazun Industrial Park (TIP), Abu Dhabi
Stage 1 covering:
- Load demand study
- Protection study (Upstream & Downstream)
- LDN development and submission to TIP
- Tender designs
Stage 2 covering:
- Development of tender documents
- Tendering support and Contractor’s Contract documentation covering pre- and post-bid clarifications and Technical & Commercial tender evaluation
Stage 3: Site Supervision
Client
Tawazun Industrial Park (TIP)Financing
Tawazun Industrial Park (TIP)Period of implementation
01.03.2018 - 30.05.2019-
Burkina Faso - Fada N'Gourma Thermal Power Station
The project consists in the expansion of the production capacity of the Fada N'Gourma by in-stalling two new diesel generators (HFO) with an exploitable capacity of between 3.75 and 4.5 MW each.
intec's services
- Coordination, supervision and management of the contract
- Technical control of designs
- Factory acceptance testing
- Supervision of works execution on site
- Supervision of completion of works and commissioning
- Reporting
Client
Société Nationale d'Electricité du Burkina (SONABEL)Financing
World BankPeriod of implementation
2/2017 - 5/2019 -
Cambodia - Extension of the Medium Distribution Grid
The objective of the project is to upgrade and expand distribution and transmission infrastructure for increased access to energy, improved electricity services for the rural population and to contribute to primary energy savings.
The tentative scope of the project is the following:- Component 1: Extension of the medium distribution grid (either 22 kV or/and 35 kV, incl. station transformers) in the rural areas
- Component 2: Construction of two new 115/22 kV grid AIS and GIS substations for strengthening the power evacuation to the 22 kV grid
intec, in its role as the Consultant, shall undertake investigations to assess the technical and economic justification of the planned transmission system expansion.
intec's services
- Brief review of the context of the power sector
- Assessment of the power sub-sector transmission & distribution in the project area, incl. a network analysis
- Survey of AIS and GIS substation areas and review of conceptual AIS and GIS substa-tion design, and provision of an analysis of a potential new AIS and GIS substation
- Review of a future AIS and GIS Substation in the centre of Siem Reap
- Review of proposed enhancement of the MV transmission system
- Identification of additional investment needs
- Conceptual design of the proposed measures
- Review of operation and maintenance concept and identifying training needs
- Cost estimates and investment budget
- Impact assessment and indicators (climate mitigation, access to electricity, local economic development)
- Economic and financial analysis
- Draft implementation concept, procurement plan and project timetable
- Risk assessment
Client
Electricité du Cambodge represented by KfWFinancing
KfW Development BankPeriod of implementation
08.2018 - 02.2019 -
Romania - 110 kV to 750 kV Overhead Lines
The contract involves providing consultancy services and analysis of solutions in order to achieve safe and efficient operations for 110 kV to 750 kV overhead lines: services for all ac-tivities related to OHLs; consultancy for procurement and supply of materials; consultancy for drafting normative activities, technical specifications, regulations, etc. related to OHLs.
intec's services
- Basic and detailed design
- Feasibility studies
- Elaboration of technical specifications
- Elaboration of design norms and prescriptions
- Financial and risk analyses
- Elaboration of technical documentation for land acquisition, permits and authorisations
Client
C.N.T.E.E. TRANSELECTRICA S.A.Financing
TRANSELECTRICAPeriod of implementation
29.2.2016 - 28.2.2019
Burkina Faso - Fada N'Gourma Thermal Power Station
The project consists in the expansion of the production capacity of the Fada N'Gourma by in-stalling two new diesel generators (HFO) with an exploitable capacity of between 3.75 and 4.5 MW each.
intec's services
- Coordination, supervision and management of the contract
- Technical control of designs
- Factory acceptance testing
- Supervision of works execution on site
- Supervision of completion of works and commissioning
- Reporting
Client
Société Nationale d'Electricité du Burkina (SONABEL)Financing
World BankPeriod of implementation
2/2017 - 5/2019Cambodia - Extension of the Medium Distribution Grid
The objective of the project is to upgrade and expand distribution and transmission infrastructure for increased access to energy, improved electricity services for the rural population and to contribute to primary energy savings.
The tentative scope of the project is the following:
- Component 1: Extension of the medium distribution grid (either 22 kV or/and 35 kV, incl. station transformers) in the rural areas
- Component 2: Construction of two new 115/22 kV grid AIS and GIS substations for strengthening the power evacuation to the 22 kV grid
intec, in its role as the Consultant, shall undertake investigations to assess the technical and economic justification of the planned transmission system expansion.
intec's services
- Brief review of the context of the power sector
- Assessment of the power sub-sector transmission & distribution in the project area, incl. a network analysis
- Survey of AIS and GIS substation areas and review of conceptual AIS and GIS substa-tion design, and provision of an analysis of a potential new AIS and GIS substation
- Review of a future AIS and GIS Substation in the centre of Siem Reap
- Review of proposed enhancement of the MV transmission system
- Identification of additional investment needs
- Conceptual design of the proposed measures
- Review of operation and maintenance concept and identifying training needs
- Cost estimates and investment budget
- Impact assessment and indicators (climate mitigation, access to electricity, local economic development)
- Economic and financial analysis
- Draft implementation concept, procurement plan and project timetable
- Risk assessment
Client
Electricité du Cambodge represented by KfWFinancing
KfW Development BankPeriod of implementation
08.2018 - 02.2019Romania - 110 kV to 750 kV Overhead Lines
The contract involves providing consultancy services and analysis of solutions in order to achieve safe and efficient operations for 110 kV to 750 kV overhead lines: services for all ac-tivities related to OHLs; consultancy for procurement and supply of materials; consultancy for drafting normative activities, technical specifications, regulations, etc. related to OHLs.
intec's services
- Basic and detailed design
- Feasibility studies
- Elaboration of technical specifications
- Elaboration of design norms and prescriptions
- Financial and risk analyses
- Elaboration of technical documentation for land acquisition, permits and authorisations