Power Systems - Project examples
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Regional - Interconnexion Project CLSG (Phase 1)
The project included Owner's Engineer services for all pre-construction activities (tender documents, tendering, contract negotiations and award) for the construction of the following equipment:
- 1,303 km of 225 kV overhead line across the four countries; initially one circuit on double circuit steel lattice towers with OPGW
- 12 new 225 kV substations, one in Côte d'Ivoire, four in Liberia, five in Sierra Leone and two in Guinea
- Installation of compensation equipment, static VAr compensators and shunt reactance in five substations
- Development of a control centre in Guinea including a regional SCADA system, frequency control systems, and extension of the NCC in Côte d'Ivoire
- Development of a frequency regulation study, procurement and installation of frequency control equipment
Construction works are executed under 13 different EPC contracts.
intec's services
intec's experts contributed to the following tasks:
Data collection and review of existing documentation
Review and finalisation of technical specifications plus prequalification and tender documents
Assistance during the tendering phase (invitations for prequalifications/tenders; evaluation of prequalifications and bid evaluation including respective reporting)
Assistance in finalising the EPC contracts (contract negotiations, preparation of contract documents)
Review of project implementation schedules and preparation of the Project Implementation Plan (PIP)
Client
WAPP Secretariat on behalf of TRANSCO CLSGFinancing
European Investment Bank (EIB) and World Bank (WB)Period of implementation
09.2014 - 12.2016 -
Ghana - 330 kV Aboadze - Prestea Power Enhancement Project (APPEP)
Amandi Energy Solutions of Switzerland has a contract with the Ghana Grid Company Ltd. ("GRIDCO") for the Aboadze - Prestea Power Enhancement Project (APPEP) and contracted part of the design work to ROENG TEC and MPS.
The design services cover the extension with 8 bays (6 new and 2 existing) of the 330 kV Aboadze Substation.
intec's services
- Basic design of sections per typical bay, control building layout, civil works, and typical earthing design in-cluding calculation notes
- Drawing up of technical specifications, bills of quantity and other documents for tendering
- Technical opinion on received bids
- Detailed design and feasibility calculations for different options and coordination with GRIDCO
- Final detailed design drawings, update of the bills of quantities and final workshop drawings
- Technical assistance during the execution phase:upon request, design review and approval during project implementation, participation in factory acceptance test visits, if required
Client
Amandi Energy SolutionsFinancing
Amandi Energy SolutionsPeriod of implementation
04.2016 - 10.2016 -
Ghana - Design Services for the 330 kV double circuit transmission line Aboadze - Prestea Power Enhancement Project (APPEP)
Amandi Energy Solutions of Switzerland has a contract with the Ghana Grid Company Ltd. ("GRIDCO") for the 330 kV double circuit transmission line Aboadze - Prestea Power Enhancement Project (APPEP) and contract-ed part of the design work to ROENG TEC.
The design services cover the 330 kV Aboadze - Prestea double-circuit overhead line.
intec's services
- Determination of operating principles, characterization and dimensions of the overhead line
- Full design, including bills of quantities (BoQs)
- Feasibility calculations for the different options for the project, including costs, materials and equipment
- Line final route and profile generation
- Tower spotting using PLS-CADD software
- Tower detailed design (5 types)
- Soil investigation report
- Foundation design
- Insulation selection and coordination
- Assistance during the implementation period, and overall supervision
- On-site training on construction of OHLs
Client
Amandi Energy SolutionsFinancing
Amandi Energy SolutionsPeriod of implementation
08.2014 - 09.2016
Regional - Interconnexion Project CLSG (Phase 1)
The project included Owner's Engineer services for all pre-construction activities (tender documents, tendering, contract negotiations and award) for the construction of the following equipment:
- 1,303 km of 225 kV overhead line across the four countries; initially one circuit on double circuit steel lattice towers with OPGW
- 12 new 225 kV substations, one in Côte d'Ivoire, four in Liberia, five in Sierra Leone and two in Guinea
- Installation of compensation equipment, static VAr compensators and shunt reactance in five substations
- Development of a control centre in Guinea including a regional SCADA system, frequency control systems, and extension of the NCC in Côte d'Ivoire
- Development of a frequency regulation study, procurement and installation of frequency control equipment
Construction works are executed under 13 different EPC contracts.
intec's services
intec's experts contributed to the following tasks:
Data collection and review of existing documentation
Review and finalisation of technical specifications plus prequalification and tender documents
Assistance during the tendering phase (invitations for prequalifications/tenders; evaluation of prequalifications and bid evaluation including respective reporting)
Assistance in finalising the EPC contracts (contract negotiations, preparation of contract documents)
Review of project implementation schedules and preparation of the Project Implementation Plan (PIP)
Client
WAPP Secretariat on behalf of TRANSCO CLSGFinancing
European Investment Bank (EIB) and World Bank (WB)Period of implementation
09.2014 - 12.2016Ghana - 330 kV Aboadze - Prestea Power Enhancement Project (APPEP)
Amandi Energy Solutions of Switzerland has a contract with the Ghana Grid Company Ltd. ("GRIDCO") for the Aboadze - Prestea Power Enhancement Project (APPEP) and contracted part of the design work to ROENG TEC and MPS.
The design services cover the extension with 8 bays (6 new and 2 existing) of the 330 kV Aboadze Substation.
intec's services
- Basic design of sections per typical bay, control building layout, civil works, and typical earthing design in-cluding calculation notes
- Drawing up of technical specifications, bills of quantity and other documents for tendering
- Technical opinion on received bids
- Detailed design and feasibility calculations for different options and coordination with GRIDCO
- Final detailed design drawings, update of the bills of quantities and final workshop drawings
- Technical assistance during the execution phase:upon request, design review and approval during project implementation, participation in factory acceptance test visits, if required
Client
Amandi Energy SolutionsFinancing
Amandi Energy SolutionsPeriod of implementation
04.2016 - 10.2016Ghana - Design Services for the 330 kV double circuit transmission line Aboadze - Prestea Power Enhancement Project (APPEP)
Amandi Energy Solutions of Switzerland has a contract with the Ghana Grid Company Ltd. ("GRIDCO") for the 330 kV double circuit transmission line Aboadze - Prestea Power Enhancement Project (APPEP) and contract-ed part of the design work to ROENG TEC.
The design services cover the 330 kV Aboadze - Prestea double-circuit overhead line.
intec's services
- Determination of operating principles, characterization and dimensions of the overhead line
- Full design, including bills of quantities (BoQs)
- Feasibility calculations for the different options for the project, including costs, materials and equipment
- Line final route and profile generation
- Tower spotting using PLS-CADD software
- Tower detailed design (5 types)
- Soil investigation report
- Foundation design
- Insulation selection and coordination
- Assistance during the implementation period, and overall supervision
- On-site training on construction of OHLs
Client
Amandi Energy SolutionsFinancing
Amandi Energy SolutionsPeriod of implementation
08.2014 - 09.2016-
Mali - PASE - Extension of EDM's Transmission and Distribution Networks
The project was part of the ‘PASE’ (Project for the Support to the Energy Sector) for which the World Bank granted a loan to the Government of Mali. The project in general aimed at improving access to electricity, as well as efficiency in the supply and utilisation of electrical energy. The project’s technical measures included the following components:
- Extension of the MV/LV networks in Bamako and Kati
- Construction of the 30 kV Kati Substation
- Reinforcement and extension of the MV/LV networks in Kayes, Sikasso, Koutiala, and Ségou
- Rehabilitation of the 150 kV lines Bamako – Fana, Fana – Ségou, and restructuring of Fana substation connection from T-off to line-in/line-out arrangement
- Extension of the Kalabancoro Substation (transformer 60 MVA, 150/30 kV) and renewal of the 30/15 kV Sotuba Substation
- Extension of the 15 kV SOGEM Substation in Kodialani and installation of 15 kV outgoing feeders
- Installation of the second circuit on the 150 kV Kodialani - Sirakoro line
intec's services
- Overall project management and home-office back-up support for specific tasks
- Coordination of the detailed implementation plan with EDM
- Approval of technical documents and implementation studies
- Technical control of plans and documents
- Factory acceptance tests, monitoring and quality control of manufacturing
- Site supervision
- Budget control and management
- Implementation of the quality management plan and the health and safety plans
- Verification of the environmental protection plan
- Reporting
Client
Energie du Mali S.A. (EDM)Financing
International Development Association (IDA)Period of implementation
02.2014 - 07.2016 -
Guinea/Mali - 225 kV Interconnection Guinea - Mali
In order to accelerate the implementation of its priority projects, the West African Power Pool (WAPP), on behalf of EDG and EDM, commissioned this project to prepare the construction of an HV overhead line and associated substations from N'Zékéroré (Guinea) via Fomi (Guinea) to Bamako (Mali). The project includes a feasibility study and the preparation of prequalification/tender documents for the following installations:
- The construction of 714 km of 225 kV line
- The extension or new construction of six 225 kV substations in Guinea (N'Zérékoré, Fomi, Beyla, Kérouané, Kankan, Siguiri)
- Additionally, the construction of a new 225 kV substation in Sanankoroba, some 25 km west of Bamako (Mali)
intec's services
- Feasibility study
- Technical study of the interconnection, collection and analysis of data, system study/planning of integrating the new 225 kV line into WAPP's interconnected network (over a time span of 20 years of operation), preliminary design (line, substations, communication and SCADA systems), economic and financial analysis
- Preparation of the prequalification/tender documents and the required split of works into different lots
- Training programme/human resource development for the concerned electricity companies, energy ministries and for staff of the General Directorate of WAPP through training on the job and in the Consultant's home office
Client
West African Power Pool (WAPP) / Système d'Echange d'Energie Electrique Ouest Africain (EEEOA)Financing
African Development BankPeriod of implementation
01.2014 - 06.2016 -
Guinea - Development Scheme for the Electrical Networks of Conakry
With the perspective to develop the country's electricity sector, the Guinean government decided to give a new momentum to the country's electrification programme to augment its citizens’ lifestyle, productivity and earnings. For this purpose, the government sought the financial support of the African Development Bank to implement the rural electrification project.
The study on the development scheme for the electrical networks of Conakry consists of the preparation of a programme to improve electricity allocation from the transmission towards the distribution network by means of the following:- Construction or renovation of substations
- Restructuring and rehabilitation of the medium-voltage network
- Replacement of medium-/low-voltage substations
- Rehabilitation and extension of the low-voltage network
intec's services
- Inventory and diagnostics of electricity transmission and distribution in Conakry
- Feasibility and implementation study for the optimum development scheme of the electrical networks and elaboration of the tender dossier
- Environmental and social impact study
Client
Electricité de Guinée (EDG)Financing
African Development FundPeriod of implementation
04.2012 - 06.2016
Mali - PASE - Extension of EDM's Transmission and Distribution Networks
The project was part of the ‘PASE’ (Project for the Support to the Energy Sector) for which the World Bank granted a loan to the Government of Mali. The project in general aimed at improving access to electricity, as well as efficiency in the supply and utilisation of electrical energy. The project’s technical measures included the following components:
- Extension of the MV/LV networks in Bamako and Kati
- Construction of the 30 kV Kati Substation
- Reinforcement and extension of the MV/LV networks in Kayes, Sikasso, Koutiala, and Ségou
- Rehabilitation of the 150 kV lines Bamako – Fana, Fana – Ségou, and restructuring of Fana substation connection from T-off to line-in/line-out arrangement
- Extension of the Kalabancoro Substation (transformer 60 MVA, 150/30 kV) and renewal of the 30/15 kV Sotuba Substation
- Extension of the 15 kV SOGEM Substation in Kodialani and installation of 15 kV outgoing feeders
- Installation of the second circuit on the 150 kV Kodialani - Sirakoro line
intec's services
- Overall project management and home-office back-up support for specific tasks
- Coordination of the detailed implementation plan with EDM
- Approval of technical documents and implementation studies
- Technical control of plans and documents
- Factory acceptance tests, monitoring and quality control of manufacturing
- Site supervision
- Budget control and management
- Implementation of the quality management plan and the health and safety plans
- Verification of the environmental protection plan
- Reporting
Client
Energie du Mali S.A. (EDM)Financing
International Development Association (IDA)Period of implementation
02.2014 - 07.2016Guinea/Mali - 225 kV Interconnection Guinea - Mali
In order to accelerate the implementation of its priority projects, the West African Power Pool (WAPP), on behalf of EDG and EDM, commissioned this project to prepare the construction of an HV overhead line and associated substations from N'Zékéroré (Guinea) via Fomi (Guinea) to Bamako (Mali). The project includes a feasibility study and the preparation of prequalification/tender documents for the following installations:
- The construction of 714 km of 225 kV line
- The extension or new construction of six 225 kV substations in Guinea (N'Zérékoré, Fomi, Beyla, Kérouané, Kankan, Siguiri)
- Additionally, the construction of a new 225 kV substation in Sanankoroba, some 25 km west of Bamako (Mali)
intec's services
- Feasibility study
- Technical study of the interconnection, collection and analysis of data, system study/planning of integrating the new 225 kV line into WAPP's interconnected network (over a time span of 20 years of operation), preliminary design (line, substations, communication and SCADA systems), economic and financial analysis
- Preparation of the prequalification/tender documents and the required split of works into different lots
- Training programme/human resource development for the concerned electricity companies, energy ministries and for staff of the General Directorate of WAPP through training on the job and in the Consultant's home office
Client
West African Power Pool (WAPP) / Système d'Echange d'Energie Electrique Ouest Africain (EEEOA)Financing
African Development BankPeriod of implementation
01.2014 - 06.2016Guinea - Development Scheme for the Electrical Networks of Conakry
With the perspective to develop the country's electricity sector, the Guinean government decided to give a new momentum to the country's electrification programme to augment its citizens’ lifestyle, productivity and earnings. For this purpose, the government sought the financial support of the African Development Bank to implement the rural electrification project.
The study on the development scheme for the electrical networks of Conakry consists of the preparation of a programme to improve electricity allocation from the transmission towards the distribution network by means of the following:
- Construction or renovation of substations
- Restructuring and rehabilitation of the medium-voltage network
- Replacement of medium-/low-voltage substations
- Rehabilitation and extension of the low-voltage network
intec's services
- Inventory and diagnostics of electricity transmission and distribution in Conakry
- Feasibility and implementation study for the optimum development scheme of the electrical networks and elaboration of the tender dossier
- Environmental and social impact study
Client
Electricité de Guinée (EDG)Financing
African Development FundPeriod of implementation
04.2012 - 06.2016-
Togo/Benin - Rehabilitation of the Lomé - Cotonou - Onigbolo Line
In order to improve the supply in electrical energy through the 161 kV line Akossombo - Lomé - Cotonou - Onigbolo and to extend its lifetime, the CEB obtained a credit from the European Investment Bank to carry out the following works:
- Strengthening of structures
- Reinforcement of some tower foundations
- Reshaping of the maintenance path
- Replacement of the ground wire cable by an optical ground wire cable
- Replacement of the HV equipment and the line bay control part in the substations connected to these lines; for which this project provides technical assistance
for which this project provides technical assistance.
intec's services
Phase 1: Support for contract award to Contractors:
- Support in the publication of procurement notices in local and international media
- Participation in bid opening and analysis, support to CEB to answer Bidder's requests for clarifications
- Assistance during contract negotiations and award
Phase 2: Control and supervision of project implementation works:
- Supervision, coordination and management of the project
- Technical control of designs
- Supervision of construction works on site
- Coordination of commissioning and factory acceptance tests (FATs)
Client
Communauté Electrique du Benin (CEB)Financing
European Investment BankPeriod of implementation
10.2011 - 06.2016 -
Albania/Kosovo - 400 kV Transmission Line Albania - Kosovo (Tirana - Pristine)
Consulting services for:
- Component 1 (Albania): Construction of a 400 kV transmission line between Tirana and the Kosovo border, and extension of a 400/230/110 kV substation by one complete 400 kV feeder
- Component 2 (Kosovo): Construction of a 400 kV transmission line from 400/230/110 kV substation Kosovo B to the border to Albania, and extension of the existing substation Kosovo B by one complete 400 kV feeder
- Additional services for TSO service contract between OST and KOSTT
- Additional services for the extension of the Substation of HPP Koman (Albania) (separate reference)
intec's services
Phase 1
- Review of technical concept, data collection, reconstruction of missing drawings
- Assistance to OST and KOSTT in the routing of the line
- Detailed line route survey incl. tower pegging and preliminary design of towers
- Preparation of preliminary planning / schedule of supplies and services, review of the cost calculation
- Support to the clients on permits and licences, rights of way and land use
- Full environmental impact assessment (EIA)
- Preparation of tender documents for goods and services (technical and commercial)
- Support during the tender process (launching of tender, evaluation of bids, contract negotiations)
- Addendum: Retendering of Lot 1 of the Albanian Part (Tirana - Morina)
Phase 2
- Design approval, participation in FATs; supervision of dismantling works
- Monitoring of the quality of the construction and installation works
- Monitoring of project cost / processing Contractor's invoices
- Support to the clients in elaborating an O&M concept
- Monitoring of commissioning / commencement of commercial operation
- Consulting services during "Defects Liability Period"
- Assist the clients in elaborating the final appraisal report
Additional services for TSO Contract:- Drafting of a sample transmission system operator (TSO) service contract between OST and KOSTT
Client
Albanian Transmission System Operator (OST) Transmission, System and Market Operator J.S.C. (KOSTT)Financing
Kreditanstalt für Wiederaufbau (KfW)Period of implementation
10.2009 - 06.2016 -
Bangladesh - New 132/33 GIS Substations, a New Cable System and a 4-circuit 132 kV transmission line
The project shall contribute to the Sustainable Power Sector Development Program II by securing proper voltage levels, and thereby reducing transmission losses. This transmission system improvement is necessary to achieve a sustainable restructuring of the power sector. The project includes the following measures:
- Lot 1 - Substations: Construction of new 132/33 kV GIS substations at Lalbagh and Madertak, and conversion of 132/33 kV Dhanmodi transformer station into a regular substation, including construction of an additional 132 kV bay (one and a half breaker scheme) at Rampura Substation
- Lot 2 - Cable system: Construction of a new 132 and 33 kV underground cable system
- Lot 3 - Transmission lines: Construction of 4-circuit 132 kV overhead transmission lines including a river crossing
intec's services
- Assistance to PIU in bid evaluations then drafting the Notice of Award Recommendation
- Assistance in contract negotiations
- Control of Contractor's time schedule
- Assist contractor in obtaining permits and Wayleave Rights
- Approval of Contractor's/suppliers' design
- Participation in Factory Acceptance Tests (FATs)
- Approval of final design and as-built design
- Supervision of construction
- Budget control and invoice review
- Monitoring the training programme
- Assistance to PIU in establishing an operations and maintenance concept
- Assistance in commissioning and assistance during Defects Liability Period (DLP) and warranty period
Client
Dhaka Power Distribution Company Ltd. (DPDC)Financing
KfW EntwicklungsbankPeriod of implementation
06.2009 - 06.2016
Togo/Benin - Rehabilitation of the Lomé - Cotonou - Onigbolo Line
In order to improve the supply in electrical energy through the 161 kV line Akossombo - Lomé - Cotonou - Onigbolo and to extend its lifetime, the CEB obtained a credit from the European Investment Bank to carry out the following works:
- Strengthening of structures
- Reinforcement of some tower foundations
- Reshaping of the maintenance path
- Replacement of the ground wire cable by an optical ground wire cable
- Replacement of the HV equipment and the line bay control part in the substations connected to these lines; for which this project provides technical assistance
for which this project provides technical assistance.
intec's services
Phase 1: Support for contract award to Contractors:
- Support in the publication of procurement notices in local and international media
- Participation in bid opening and analysis, support to CEB to answer Bidder's requests for clarifications
- Assistance during contract negotiations and award
Phase 2: Control and supervision of project implementation works:
- Supervision, coordination and management of the project
- Technical control of designs
- Supervision of construction works on site
- Coordination of commissioning and factory acceptance tests (FATs)
Client
Communauté Electrique du Benin (CEB)Financing
European Investment BankPeriod of implementation
10.2011 - 06.2016Albania/Kosovo - 400 kV Transmission Line Albania - Kosovo (Tirana - Pristine)
Consulting services for:
- Component 1 (Albania): Construction of a 400 kV transmission line between Tirana and the Kosovo border, and extension of a 400/230/110 kV substation by one complete 400 kV feeder
- Component 2 (Kosovo): Construction of a 400 kV transmission line from 400/230/110 kV substation Kosovo B to the border to Albania, and extension of the existing substation Kosovo B by one complete 400 kV feeder
- Additional services for TSO service contract between OST and KOSTT
- Additional services for the extension of the Substation of HPP Koman (Albania) (separate reference)
intec's services
Phase 1
- Review of technical concept, data collection, reconstruction of missing drawings
- Assistance to OST and KOSTT in the routing of the line
- Detailed line route survey incl. tower pegging and preliminary design of towers
- Preparation of preliminary planning / schedule of supplies and services, review of the cost calculation
- Support to the clients on permits and licences, rights of way and land use
- Full environmental impact assessment (EIA)
- Preparation of tender documents for goods and services (technical and commercial)
- Support during the tender process (launching of tender, evaluation of bids, contract negotiations)
- Addendum: Retendering of Lot 1 of the Albanian Part (Tirana - Morina)
Phase 2
- Design approval, participation in FATs; supervision of dismantling works
- Monitoring of the quality of the construction and installation works
- Monitoring of project cost / processing Contractor's invoices
- Support to the clients in elaborating an O&M concept
- Monitoring of commissioning / commencement of commercial operation
- Consulting services during "Defects Liability Period"
- Assist the clients in elaborating the final appraisal report
Additional services for TSO Contract:
- Drafting of a sample transmission system operator (TSO) service contract between OST and KOSTT
Client
Albanian Transmission System Operator (OST) Transmission, System and Market Operator J.S.C. (KOSTT)Financing
Kreditanstalt für Wiederaufbau (KfW)Period of implementation
10.2009 - 06.2016Bangladesh - New 132/33 GIS Substations, a New Cable System and a 4-circuit 132 kV transmission line
The project shall contribute to the Sustainable Power Sector Development Program II by securing proper voltage levels, and thereby reducing transmission losses. This transmission system improvement is necessary to achieve a sustainable restructuring of the power sector. The project includes the following measures:
- Lot 1 - Substations: Construction of new 132/33 kV GIS substations at Lalbagh and Madertak, and conversion of 132/33 kV Dhanmodi transformer station into a regular substation, including construction of an additional 132 kV bay (one and a half breaker scheme) at Rampura Substation
- Lot 2 - Cable system: Construction of a new 132 and 33 kV underground cable system
- Lot 3 - Transmission lines: Construction of 4-circuit 132 kV overhead transmission lines including a river crossing
intec's services
- Assistance to PIU in bid evaluations then drafting the Notice of Award Recommendation
- Assistance in contract negotiations
- Control of Contractor's time schedule
- Assist contractor in obtaining permits and Wayleave Rights
- Approval of Contractor's/suppliers' design
- Participation in Factory Acceptance Tests (FATs)
- Approval of final design and as-built design
- Supervision of construction
- Budget control and invoice review
- Monitoring the training programme
- Assistance to PIU in establishing an operations and maintenance concept
- Assistance in commissioning and assistance during Defects Liability Period (DLP) and warranty period