HV & EHV grids - Project examples
-
Nigeria - High Voltage Transmission Lines and Substations for PC Lot 5T (EPC Lots 8, 29 & 30)
Consultancy services for the supervision of the following EPC contracts:
Lot 8 (T):
- 132 km of 132 kV double circuit line from Benin North via Agbor to Asaba
- Associated works in the 132/33 kV Substations Agbor, Asaba, Benin North and Nkalagu
Lot 29 (T):
- Extension of Asaba Substation (1 x 150 MVA, 330/132/33 kV)
Lot 30 (T):
- One new 2 x 60 MVA, 132/33 kV Substation at Orlu, Imo State
- One 132 kV diameter extension at Ihiala Substation, Anambra State
intec's services
- Contract/project management and administrative tasks
- Evaluation of tenders for EPC contracts, assistance in contract award
- Design approval
- Site supervision, quality assurance
- Handling of payment, variation order and claim procedures
- FATs and assistance during taking-over
- Assistance during defects liability period
- Transfer of know-how
Client
Niger Delta Power Holding Company Ltd.Financing
Government of NigeriaPeriod of implementation
2.2.2011 - 30.6.2018 -
Slovakia - Complex ES Bystricany - Transformation 400 / 100 kV
This project is related to the shutdown of Bohunice V1 NPP and is supported through the Bohunice International Decommissioning Support Fund (BIDSF). It includes the following technical measures:
- Construction of a new 400 kV substation and two new 400/110 kV transformers adjacent to Bystričany 220 kV Substation
- Construction of a new double-circuit 400 kV OHL (30 km) between Horna Zdana Substation and Bystričany Substation and Oslany municipality to connect the new Bystričany Substation to the 400 kV network
- Extension of the 400 kV Substation Horna Zdana by two bays for connection to the 400 kV OHL from Bystričany Substation
- Construction of a new double-circuit 400 kV overhead line (80 km) between the Bystričany and Krizovany Substations, one circuit being operated at the 220 kV level
- Extension of the 400 kV Substation Krizovany by one bay to permit connection to the 400 kV overhead line from Bystričany Substation
Services under the overall project are divided into three stages:
Stage 1: Procurement / Project Preparation
Stage 2: Project Implementation / Construction Supervision and Management
Stage 3: Defect Notification Period
intec's services
Stage 1:
- Management support to SEPS concerning all aspects of project implementation
- Project organisation, i.a. assistance to SEPS in the set-up and operation of an effective Project Management Unit (PMU) concerning staffing, organisational structure, roles and functions, project procedures manual, quality assurance plan, etc.
- Project scheduling and planning / set-up of the procurement process
- Review of technical specifications for defined supply packages, preparation of additional supporting studies
- Preparation of tender documents
- Execution of the tender process (invitation to tender, pre-bid meeting and minutes, site visit, clarification to bidders' queries, evaluation of received bids, support during contract negotiations, preparation of draft contract documents) for a total of 3 lots
- Reporting
Stage 2:
- Monitoring of all technical and financial aspects related to the contracts (e.g. engineering, manufacturing, construction and commissioning)
- Follow-up of project progress, corrective actions
- Management of any deviations, claims, variation orders, deficiencies, defects and disputes
- Supervision of installation, testing, commissioning and acceptance of the works
- Preparation of final contract completion reports for the projects
Stage 3:
- Services during the defect notification period
Client
Slovenská elektrizačná prenosová sústava, a.s. (SEPS)Financing
European Bank for Reconstruction and Development (EBRD)Period of implementation
20.1.2015 - 30.6.2018 -
Mauritania - Solar Energy-Based Rural Electrification in the Aftout Elchargui Region
The Mauritanian Government initiated a national strategy to provide universal access to basic services (water, energy, telecommunication) in rural and suburban areas. In this context, the Government received a loan from the Islamic Development Bank and the OPEC Fund for International Development (OFID) for the implementation of strategic investments in electricity infrastructure, one of the components being consultancy services for project supervision. The project includes mainly:
- the procurement and installation of (i) one solar PV plant with an estimated capacity of 2.6 MWc and storage, (ii) a diesel back-up system to complement the electricity production (2 diesel gensets), and the optimisation of the envisaged electricity production as per the prevailing conditions
- the construction of approx. 270 km of HV transmission networks and approx. 60 km of LV distribution networks as well as approx. 6,000 consumer connections
intec's services
Mission 1: Detailed technical studies, including environmental and social impact studies for the equipment which is divided into 3 lots (power plants and their optimisation, HV networks, LV networks): Elaboration of preliminary design and detailed design for the chosen options, including technical specifications and dimensioning, engineering, functional specifications for the equipment, soil investigations, topography, BoQ etc., and elaboration of tender documents.
Mission 2: Support to the Employer during tendering: Site visits with the Bidders, reply to Bidders' queries, bid evaluation and support to the Employer during contract negotiations for the EPC contracts.
Mission 3: Technical control and supervision of works: Management of the implementation works, scheduling and steering of site works, and assistance during acceptance operations.
Client
Agence de Promotion de l'Accès Universel aux Services (APAUS)Financing
Islamic Development Bank (IDB)Period of implementation
2016 - 2018
Nigeria - High Voltage Transmission Lines and Substations for PC Lot 5T (EPC Lots 8, 29 & 30)
Consultancy services for the supervision of the following EPC contracts:
Lot 8 (T):
- 132 km of 132 kV double circuit line from Benin North via Agbor to Asaba
- Associated works in the 132/33 kV Substations Agbor, Asaba, Benin North and Nkalagu
Lot 29 (T):
- Extension of Asaba Substation (1 x 150 MVA, 330/132/33 kV)
Lot 30 (T):
- One new 2 x 60 MVA, 132/33 kV Substation at Orlu, Imo State
- One 132 kV diameter extension at Ihiala Substation, Anambra State
intec's services
- Contract/project management and administrative tasks
- Evaluation of tenders for EPC contracts, assistance in contract award
- Design approval
- Site supervision, quality assurance
- Handling of payment, variation order and claim procedures
- FATs and assistance during taking-over
- Assistance during defects liability period
- Transfer of know-how
Client
Niger Delta Power Holding Company Ltd.Financing
Government of NigeriaPeriod of implementation
2.2.2011 - 30.6.2018Slovakia - Complex ES Bystricany - Transformation 400 / 100 kV
This project is related to the shutdown of Bohunice V1 NPP and is supported through the Bohunice International Decommissioning Support Fund (BIDSF). It includes the following technical measures:
- Construction of a new 400 kV substation and two new 400/110 kV transformers adjacent to Bystričany 220 kV Substation
- Construction of a new double-circuit 400 kV OHL (30 km) between Horna Zdana Substation and Bystričany Substation and Oslany municipality to connect the new Bystričany Substation to the 400 kV network
- Extension of the 400 kV Substation Horna Zdana by two bays for connection to the 400 kV OHL from Bystričany Substation
- Construction of a new double-circuit 400 kV overhead line (80 km) between the Bystričany and Krizovany Substations, one circuit being operated at the 220 kV level
- Extension of the 400 kV Substation Krizovany by one bay to permit connection to the 400 kV overhead line from Bystričany Substation
Services under the overall project are divided into three stages:
Stage 1: Procurement / Project Preparation
Stage 2: Project Implementation / Construction Supervision and Management
Stage 3: Defect Notification Period
intec's services
Stage 1:
- Management support to SEPS concerning all aspects of project implementation
- Project organisation, i.a. assistance to SEPS in the set-up and operation of an effective Project Management Unit (PMU) concerning staffing, organisational structure, roles and functions, project procedures manual, quality assurance plan, etc.
- Project scheduling and planning / set-up of the procurement process
- Review of technical specifications for defined supply packages, preparation of additional supporting studies
- Preparation of tender documents
- Execution of the tender process (invitation to tender, pre-bid meeting and minutes, site visit, clarification to bidders' queries, evaluation of received bids, support during contract negotiations, preparation of draft contract documents) for a total of 3 lots
- Reporting
Stage 2:
- Monitoring of all technical and financial aspects related to the contracts (e.g. engineering, manufacturing, construction and commissioning)
- Follow-up of project progress, corrective actions
- Management of any deviations, claims, variation orders, deficiencies, defects and disputes
- Supervision of installation, testing, commissioning and acceptance of the works
- Preparation of final contract completion reports for the projects
Stage 3:
- Services during the defect notification period
Client
Slovenská elektrizačná prenosová sústava, a.s. (SEPS)Financing
European Bank for Reconstruction and Development (EBRD)Period of implementation
20.1.2015 - 30.6.2018Mauritania - Solar Energy-Based Rural Electrification in the Aftout Elchargui Region
The Mauritanian Government initiated a national strategy to provide universal access to basic services (water, energy, telecommunication) in rural and suburban areas. In this context, the Government received a loan from the Islamic Development Bank and the OPEC Fund for International Development (OFID) for the implementation of strategic investments in electricity infrastructure, one of the components being consultancy services for project supervision. The project includes mainly:
- the procurement and installation of (i) one solar PV plant with an estimated capacity of 2.6 MWc and storage, (ii) a diesel back-up system to complement the electricity production (2 diesel gensets), and the optimisation of the envisaged electricity production as per the prevailing conditions
- the construction of approx. 270 km of HV transmission networks and approx. 60 km of LV distribution networks as well as approx. 6,000 consumer connections
intec's services
Mission 1: Detailed technical studies, including environmental and social impact studies for the equipment which is divided into 3 lots (power plants and their optimisation, HV networks, LV networks): Elaboration of preliminary design and detailed design for the chosen options, including technical specifications and dimensioning, engineering, functional specifications for the equipment, soil investigations, topography, BoQ etc., and elaboration of tender documents.
Mission 2: Support to the Employer during tendering: Site visits with the Bidders, reply to Bidders' queries, bid evaluation and support to the Employer during contract negotiations for the EPC contracts.
Mission 3: Technical control and supervision of works: Management of the implementation works, scheduling and steering of site works, and assistance during acceptance operations.
Client
Agence de Promotion de l'Accès Universel aux Services (APAUS)Financing
Islamic Development Bank (IDB)Period of implementation
2016 - 2018-
Burundi - Hydropower Plant Rusumo Falls - Transmission Line Component (Burundi part of the regional project Burundi - Ruanda - Tanzania)
The "Regional Hydropower Plant Rusumo Falls" project was jointly developed by Burundi, Rwanda, and Tanzania. It includes the construction of a hydropower plant as well as the construction of 387 km of high-voltage lines and associated substations in the three countries (the present project).
In Burundi, services include detailed design and works supervision for the following:
- One 220 kV double-circuit transmission line of 161 km length, from the hydropower plant to the existing Gitega substation (double circuit, with steel groundwire and an OPGW on lattice steel towers);
- One new 220/30 kV substation at Muyinga, a new 220/110 kV substation at Gitega and its connection to the existing 130/30 kV substation at Gitega.
intec's services
intec contributes to the following tasks:
- Review of transmission line routes, angle towers and substations
- Final design
- Elaboration of technical specifications and tender documents
- Design review
- Control and supervision of works
- Tower acceptance testing
- Equipment acceptance testing
- Commissioning of equipment
- Reporting
Client
REGIDESO - Régie de Production et de Distribution d'Eau et d'ElectricitéFinancing
African Development Bank/European UnionPeriod of implementation
2016 - 2020 -
Georgia - 500 kV Jvari - Tskaltubo Overhead Transmission Line and Associated Substations
Georgia has set out a 10-year transmission network development plan. The construction of a new double-circuit 500 kV OHTL Jvari - Tskaltubo (about 70 km) and the construction of a new 500 kV switchyard in Tskaltubo Substation are among the top priority projects of this plan.
The present assignment aims at providing engineering, design and procurement support ser-vices to the Project Implementing Agency/the Client GSE to ensure timely implementation of the project.
intec's services
- Review of the existing project concept/preliminary design, cost estimates and schedule
- Preparation of tender documents, including technical specifications, for international competitive bidding (ICB) to select turnkey contractors for the works, using the ‘Standard Bidding Documents’ issued by the World Bank
- Preparation of bid evaluation reports, assistance in contract negotiations and preparation of con-tract documents
Client
Georgian State Electrosystem JSC (GSE)Financing
World BankPeriod of implementation
18.9.2017 - 31.5.2018 -
Nigeria - HV Transmission Lines and Substations - PC-Lot 3(T)
Consultancy services for the supervision of the following EPC contracts:
- Lot 6-A: New 330/132/33 kV substation Owerri
- Lot 6-B: Line bay extension at 330 kV Alaoji Substation
- Lot 6-C: Project management for 330/132/33 kV Omoku Substation
- Lot 6-D: 330 kV DC line Omoku - Egbema
- Lot 6-E: 330 kV DC line Egbema - Owerri
- Lot 6-F: 330 kV DC line Ihiala - Nnewi
- Lot 6-H: Line bay extension at 330 kV Onitsha Substation
- Lot 6-I: 330 kV DC line Alaoji - Owerri
- Lot 23: New 132/33 kV substation Ubulusiuzor (Ihiala)
- Lot xx: 330/132 kV Nnewi Substation
intec's services
- Project coordination, management and supervision
- Tender evaluation, assistance during contract negotiations
- Technical control of designs
- Factory acceptance and acceptance of supplies to site
- Supervision of works on site
- Commissioning and trial runs
- Assistance during defects liability period
- Training and know-how transfer.
Client
Niger Delta Power Holding Company Ltd. (NDPHC)Financing
Niger Delta Power Holding Company Ltd. (NDPHC)Period of implementation
14.12.2005 - 30.3.2018
Burundi - Hydropower Plant Rusumo Falls - Transmission Line Component (Burundi part of the regional project Burundi - Ruanda - Tanzania)
The "Regional Hydropower Plant Rusumo Falls" project was jointly developed by Burundi, Rwanda, and Tanzania. It includes the construction of a hydropower plant as well as the construction of 387 km of high-voltage lines and associated substations in the three countries (the present project).
In Burundi, services include detailed design and works supervision for the following:
- One 220 kV double-circuit transmission line of 161 km length, from the hydropower plant to the existing Gitega substation (double circuit, with steel groundwire and an OPGW on lattice steel towers);
- One new 220/30 kV substation at Muyinga, a new 220/110 kV substation at Gitega and its connection to the existing 130/30 kV substation at Gitega.
intec's services
intec contributes to the following tasks:
- Review of transmission line routes, angle towers and substations
- Final design
- Elaboration of technical specifications and tender documents
- Design review
- Control and supervision of works
- Tower acceptance testing
- Equipment acceptance testing
- Commissioning of equipment
- Reporting
Client
REGIDESO - Régie de Production et de Distribution d'Eau et d'ElectricitéFinancing
African Development Bank/European UnionPeriod of implementation
2016 - 2020Georgia - 500 kV Jvari - Tskaltubo Overhead Transmission Line and Associated Substations
Georgia has set out a 10-year transmission network development plan. The construction of a new double-circuit 500 kV OHTL Jvari - Tskaltubo (about 70 km) and the construction of a new 500 kV switchyard in Tskaltubo Substation are among the top priority projects of this plan.
The present assignment aims at providing engineering, design and procurement support ser-vices to the Project Implementing Agency/the Client GSE to ensure timely implementation of the project.
intec's services
- Review of the existing project concept/preliminary design, cost estimates and schedule
- Preparation of tender documents, including technical specifications, for international competitive bidding (ICB) to select turnkey contractors for the works, using the ‘Standard Bidding Documents’ issued by the World Bank
- Preparation of bid evaluation reports, assistance in contract negotiations and preparation of con-tract documents
Client
Georgian State Electrosystem JSC (GSE)Financing
World BankPeriod of implementation
18.9.2017 - 31.5.2018Nigeria - HV Transmission Lines and Substations - PC-Lot 3(T)
Consultancy services for the supervision of the following EPC contracts:
- Lot 6-A: New 330/132/33 kV substation Owerri
- Lot 6-B: Line bay extension at 330 kV Alaoji Substation
- Lot 6-C: Project management for 330/132/33 kV Omoku Substation
- Lot 6-D: 330 kV DC line Omoku - Egbema
- Lot 6-E: 330 kV DC line Egbema - Owerri
- Lot 6-F: 330 kV DC line Ihiala - Nnewi
- Lot 6-H: Line bay extension at 330 kV Onitsha Substation
- Lot 6-I: 330 kV DC line Alaoji - Owerri
- Lot 23: New 132/33 kV substation Ubulusiuzor (Ihiala)
- Lot xx: 330/132 kV Nnewi Substation
intec's services
- Project coordination, management and supervision
- Tender evaluation, assistance during contract negotiations
- Technical control of designs
- Factory acceptance and acceptance of supplies to site
- Supervision of works on site
- Commissioning and trial runs
- Assistance during defects liability period
- Training and know-how transfer.
Client
Niger Delta Power Holding Company Ltd. (NDPHC)Financing
Niger Delta Power Holding Company Ltd. (NDPHC)Period of implementation
14.12.2005 - 30.3.2018-
Uganda - 220 kV Kawanda - Masaka Transmission Line and Associated Substations Project
The technical project measures comprise the following:
- Construction of a137 km double circuit, 220 kV transmission line between Kawanda and Masaka
- Upgrade of Kawanda Substation: Construction of a total of four line feeders for 220 kV line bays in Masaka and Bujagali Substations including control, protection and communication equipment; Installation of 2 x 250 MVA, 220/132/33 kV, inter-bus transformers, complete with transformer bays, control, protection and communication equipment; Construction of 220 kV busbars; 15 MVA shunt reactors, complete with bays, control, protection and communication equipment; civil works
- New Masaka Substation, comprising two 220 kV line bays to Kawanda Substation; 220 kV bus-bars and coupler; 2 x 125 MVA, 220/132/33 kV autotransformers; design of new switchyard and control building including provisions for additional transformers and line bays; complete 15 MVA reactors, interconnection between existing and new substations
- Mbarara Substation: 15 MVA reactors complete with bays, control, protection and communication equipment
- Bujagali Substation: Extension of the substation by two 220 kV line bays
intec's services
The Consultant's services are divided into two phases Phase I: Tendering then Phase II: Con-struction:
- ‘Owner's Engineer’ during Phase I: Assistance during the tendering stage (preparation of tender documents; only for Bujagali Substation), clarifications, pre-bid conference and site visit, bid evaluation and post-tender clarifications, evaluation report, contract negotiations, and preparation of contract)
- Project Management during Phase II: Construction supervision (contract management, design review, supervision of works on site, testing, commissioning and reporting, quality and cost control, taking over), and assistance during the defects liability period (rectification of defects, completion certificates, final accounts
Client
Uganda Electricity Transmission Company Ltd. (UETCL)Financing
International Bank for Reconstruction and Development (IBRD)Period of implementation
21.1.2014 - 28.2.2018 -
Guinea - Linsan - Fomi Transmission Line (CLSG / Rural Electrification Component Guinea)
The Linsan - Fomi transmission line project is one of the priority projects identified in the elec-trification masterplan of Guinea. The implementation of this line aims at ensuring a stable in-tegration of the national electricity networks of the ECOWAS member countries. At the same time, it serves to evacuate the power produced by the Kaleta Power Plant, the projected Souapiti HPP and other power plants to come.
The project covers the construction of approx. 394 km of 225 kV double-circuit transmission line between Linsan, Dabola, Kouroussa and Fomi with four associated 225 kV substations. It covers the following tasks:
- Line routing and production of maps, plans and profile drawings
- Environmental and Social Impact Assessment (ESIA)
- Elaboration of the Environmental and Social Management Plan (ESMP)
- Elaboration of the Resettlement Action Plan (RAP)
- Feasibility study for the line
- Preparation of functional prequalification and tender documents
- Training
intec's services
- Line routing and production of maps, plans and profile drawings
- Feasibility study, including:
- Technical interconnection study
- Economic, financial and sensitivity analyses and tariff proposal
- Risk analyses
- Training for the representatives of the projectparticipating parties on design of line interconnection and of transformer substations, and on the implementation of technical, economic and financial analyses
- Design and technical specifications for the line and the substations
- Preparation of functional prequalification and tender documents, and bid packaging
Client
Electricité de Guinée (EDG)Financing
African Development Bank (AfDB)Period of implementation
5.4.2017 - 4.2.2018 -
Albania - 400 kV Extension of Koman HPP Substation
The project is an additional component of the overall project ‘400 kV Transmission Line Albania – Kosovo’ and includes all required services for the extension of the 220 kV Koman Hydropower Plant Substation by a 400 kV part.
intec's services
- Assessment of technical feasibility and report
- ESIA study and report
- Elaboration of technical specifications and tender documents
- Assistance to OST during the bidding period
- Bid evaluation
- Assistance to OST in contract negotiation and award of the EPC contract
- Review and approval of design
- Supervision of procurement, manufacturing and transportation
- Supervision of construction and installation works
- Testing, commissioning and taking-over
Client
Albanian Transmission System Operator (OST)Financing
Kreditanstalt für Wiederaufbau (KfW)Period of implementation
1.1.2016 - 31.1.2018
Uganda - 220 kV Kawanda - Masaka Transmission Line and Associated Substations Project
The technical project measures comprise the following:
- Construction of a137 km double circuit, 220 kV transmission line between Kawanda and Masaka
- Upgrade of Kawanda Substation: Construction of a total of four line feeders for 220 kV line bays in Masaka and Bujagali Substations including control, protection and communication equipment; Installation of 2 x 250 MVA, 220/132/33 kV, inter-bus transformers, complete with transformer bays, control, protection and communication equipment; Construction of 220 kV busbars; 15 MVA shunt reactors, complete with bays, control, protection and communication equipment; civil works
- New Masaka Substation, comprising two 220 kV line bays to Kawanda Substation; 220 kV bus-bars and coupler; 2 x 125 MVA, 220/132/33 kV autotransformers; design of new switchyard and control building including provisions for additional transformers and line bays; complete 15 MVA reactors, interconnection between existing and new substations
- Mbarara Substation: 15 MVA reactors complete with bays, control, protection and communication equipment
- Bujagali Substation: Extension of the substation by two 220 kV line bays
intec's services
The Consultant's services are divided into two phases Phase I: Tendering then Phase II: Con-struction:
- ‘Owner's Engineer’ during Phase I: Assistance during the tendering stage (preparation of tender documents; only for Bujagali Substation), clarifications, pre-bid conference and site visit, bid evaluation and post-tender clarifications, evaluation report, contract negotiations, and preparation of contract)
- Project Management during Phase II: Construction supervision (contract management, design review, supervision of works on site, testing, commissioning and reporting, quality and cost control, taking over), and assistance during the defects liability period (rectification of defects, completion certificates, final accounts
Client
Uganda Electricity Transmission Company Ltd. (UETCL)Financing
International Bank for Reconstruction and Development (IBRD)Period of implementation
21.1.2014 - 28.2.2018Guinea - Linsan - Fomi Transmission Line (CLSG / Rural Electrification Component Guinea)
The Linsan - Fomi transmission line project is one of the priority projects identified in the elec-trification masterplan of Guinea. The implementation of this line aims at ensuring a stable in-tegration of the national electricity networks of the ECOWAS member countries. At the same time, it serves to evacuate the power produced by the Kaleta Power Plant, the projected Souapiti HPP and other power plants to come.
The project covers the construction of approx. 394 km of 225 kV double-circuit transmission line between Linsan, Dabola, Kouroussa and Fomi with four associated 225 kV substations. It covers the following tasks:
- Line routing and production of maps, plans and profile drawings
- Environmental and Social Impact Assessment (ESIA)
- Elaboration of the Environmental and Social Management Plan (ESMP)
- Elaboration of the Resettlement Action Plan (RAP)
- Feasibility study for the line
- Preparation of functional prequalification and tender documents
- Training
intec's services
- Line routing and production of maps, plans and profile drawings
- Feasibility study, including:
- Technical interconnection study
- Economic, financial and sensitivity analyses and tariff proposal
- Risk analyses
- Training for the representatives of the projectparticipating parties on design of line interconnection and of transformer substations, and on the implementation of technical, economic and financial analyses
- Design and technical specifications for the line and the substations
- Preparation of functional prequalification and tender documents, and bid packaging
Client
Electricité de Guinée (EDG)Financing
African Development Bank (AfDB)Period of implementation
5.4.2017 - 4.2.2018Albania - 400 kV Extension of Koman HPP Substation
The project is an additional component of the overall project ‘400 kV Transmission Line Albania – Kosovo’ and includes all required services for the extension of the 220 kV Koman Hydropower Plant Substation by a 400 kV part.
intec's services
- Assessment of technical feasibility and report
- ESIA study and report
- Elaboration of technical specifications and tender documents
- Assistance to OST during the bidding period
- Bid evaluation
- Assistance to OST in contract negotiation and award of the EPC contract
- Review and approval of design
- Supervision of procurement, manufacturing and transportation
- Supervision of construction and installation works
- Testing, commissioning and taking-over