Bangladesh - New 230/132 kV and 132/33 kV GIS substations
In its "Government Vision 2021", the Government of Bangladesh plans to supply electricity throughout the country by the year 2021. A study of the whole transmission network of Bangladesh revealed that a considerable number of grid substations and transmission lines, especially in rural areas, will be overloaded. Also, a number of substations will need renovation and modification to replace their aged equipment and unconventional designs.
Against this background, the present study shall develop necessary measures concerning:
- new 230/132 kV and 132/33 kV GIS substations,
- transmission line and substation renovation / upgrading and development.
The study shall prioritize proposed rehabilitation measures to account for different loan packages under discussion.
intec's services
- Review and update of information on the power subsector (incl. power plants, transmission and distribution grids, supply and consumption patterns, load forecast, losses, availability and reliability of electricity)
- Assessment of the power sector in the project areas and network analysis (update of existing load flow calculations for the time horizons 2019, 2022 and 2027)
- Review of preliminary line route identification provided by PGCB
- Preliminary survey of substation areas
- Proposal for layout of the transmission systems (line optimisation and tower spotting, line connections at existing substations, substation line-in/line-out connections, substation design (electrical, civil, communications / SCADA, access)
- Identification of training needs at PGCB concerning system planning and operation
- Cost estimates and economic and financial analyses
- Review of ESIA, mitigation measures and resettlement action plans.
Client
Power Grid Company of Bangladesh Ltd. (PGCB)
Financing
KfW Entwicklungsbank
Period of implementation
03.2015 - 09.2015
Tanzania - 400 kV Transmission Line Iringa-Shinyanga
The objective of the project was to reinforce the existing 200 kV transmission line from Iringa to Shinyanga by constructing approximately 700 km of 400 kV transmission line and associated facilities.
The Iringa - Shinyanga transmission line is divided into 3 line sections: Iringa - Dodoma (225 km), Dodoma - Singida (227 km), and Singida - Shinyanga (228 km).
The project was carried out for Tanzania Electric Supply Company (TANESCO).
intec's services
- Design review
- Analysis of contract documents
- Design approval
- Calibration of the tower program to the project's design conditions and the Contractor's material characteristics
- Equipment type tests
- Tower type tests
- Factory acceptance tests
- Training on OHL and substation design for the Employer’s personnel.
Financing
Subcontracting
Period of implementation
12.2013 - 08.2015
UAE - 33/11 kV Primary Substations and 22(11)/0.4 kV Distribution Substations (Lots A, B and C)
The project provides consultancy services for the establishment of power supply to medium-size development projects in Abu Dhabi. Services are divided into three lots - A, B, and C, plus a total of 4 variation orders.
- The work under Lot A covers all services required for the supply and erection of three new 33/11 kV primary substations and related cable circuits including Al-Rahba
- Lot B covers the overview of Developer's designs, bidding process and site construction works for primary and distribution substations (33/11 kV, 22(11)/0.4 kV) and 11 kV switching stations for various Developer projects such as Al Reef Villas, ICAD (M-41), South Shamka, ADNEC, Sowah Island, Saraya development, Zayed Sports City, Danet Abu Dhabi, and Building Material City.
- The services for Lot C comprise full engineering and site supervision for establishing temporary power supply to the projects identified under Lots A and B.
- Variation order 1: Additional consultancy services for 33/11 kV primary substations under Lot A
- Variation order 2: Establishment of power supply to a complex with 98 villas in Abu Dhabi (11/0.4 kV substations, 11 kV cables, feeder pillars and LV cables)
- Variation order 3: Consultancy services for the establishment of temporary and permanent power supply to the prestigious Yahsat Satellite Ground Station in Abu Dhabi involving installation, testing and commissioning of 33/11 kV primary substation, 33/11 kV package units, 11/0.4 kV substations, 33 and 11 kV cables.
- Variation order 4: Retendering of 33/11 kV primary substation at Al Rahba and inclusion of scope for extension of 11 kV feeder panels in selected 132/11 kV primary substations.
intec's services
Lot A:
- Site survey / data collection for the identification of three 33/11 kV primary substations and associated 33 kV cable routes
- Preparation of conceptual design including load flow and voltage drop analysis.
- Preparation of tender documents and conducting the entire bidding process including pre-bid clarifications, bid evaluation and preparation of contract documents.
- Review and approval of Contractors’ design documents.
- Full site supervision of Contractors’ site work including commissioning and issuance of preliminary and final acceptance certificate (PAC & FAC).
- Warranty services
Lot B:
- Review and approval of Developer’s designs for primary and distribution substations and associated cables (2 x 33/11 kV primary substations, 289 x 22/0.4 kV, 107 x 33/11 kV and 11/0.4 kV package units).
- Review and approval of tender documents prepared by the Developers for their scope of work.
- Review and approval of Developers' material submittals.
- Overview supervision of Developer’s construction work at site by way of random checks and witness of all major testing and commissioning activities.
Lot C:
- Engineering and full site supervision for establishing the temporary power supply to Developers' sites.
Variation Order 1:
- Additional consultancy services for conception design of 33/11 kV primary substations under Lot A.
Variation Order 2 (98 Villas Project):
- Conceptual study, preliminary design and detailed engineering for 11 kV distribution substation and associated cable routes.
- Preparation of tender documentation, bid evaluation and contract documents.
- Design review.
- Full site supervision and services during the warranty period.
Variation Order 3 (Yahsat Satellite Ground Station):
- Design of 33/11 kV package unit with 8.5 km 33 kV cable, one 33/11 kV primary substation and seven 11/0.4 kV distribution substations with associated 11 kV cable works.
- Preparation of conceptual and final designs for SCADA, telecommunication and telemetry systems and their testing for integration into DMS to meet Smart Grid standards.
- Overview of site supervision of the above works including supply, installation, testing, commissioning and energization.
Variation Order 4:
- Re-tendering for the 33/11 kV primary substation at Al Rahba.
- Conducting the entire bidding process for the extension of the 11 kV feeder panels.
- Full site supervision of Contractor's site works including commissioning of PAC and FAC.
- Warranty services.
Client
Abu Dhabi Distribution Company (ADDC)
Financing
Abu Dhabi Distribution Company (ADDC)
Period of implementation
01.2008 - 01.2015
UAE - Construction Management of Substation and Chiller Works at Yas Island
The installation of new chillers in the residential areas of Yas Island led to an increase of load demand which required the construction of a new 22/0.4 kV distribution substation and the transfer of LV load between different feeder pillars.
In addition, the project covers the installation of an energy-efficient solar-powered street lighting system in the project area.
intec's services
- Review of Subcontractor's technical and material submittals;
- Supervision of Subcontractor's site construction activities;
- Coordination between Subcontractor, the Client's Consultant and the Client RAPM;
- Ensure the completion of works in line with ADDC's specifications;
- Variation order: Coordination and site supervision for the installation of a street-lighting system.
Client
Royal Architect Project Management LLC (RAPM)
Financing
Royal Architect Project Management LLC (RAPM)
Period of implementation
05.2013 - 01.2014
UAE - 400 kV Switching Station at Hameem Junction / Mussafah
The works for the new 400 kV switching station at Hameem Junction were divided into two lots which had the following technical features:
Lot 1: Substation Works, including:
- 400 kV gas-insulated (GIS) switchgear with a double busbar system,
- 6 OHL bays, 2 bus section bays, 2 bus coupler bays, 2 spare OHL bays, 2 spare inter-bus transformer bays, space for two spare feeders,
- power and control cables, control and protection, coordination with the remote ends, interface with the load dispatch centre’s SCADA system, and communication works,
- fire-fighting systems, air conditioning, and civil works.
Lot 2: 200 kV Overhead Line Works, including:
- Loop-in and loop-out of the 400 kV d.c. lines from Madinat Zayed, Mussafah, AASW/Taweelah B,
- Line route survey, soil investigations, and access roads,
- Design, supply and installation of foundations,
- Design, supply, erection and painting of towers and gantries
- Supply and installation of insulators, conductors, and OPGW,
- Installation of an aircraft warning system.
intec's services
- Data collection and site survey,
- Preparation of preliminary and final design,
- Elaboration of costs and budget,
- Preparation of tender documents and evaluation of bids,
- Site supervision during the construction period,
- Testing,
- Site supervision during the warranty period.
Client
Abu Dhabi Transmission and Despatch Company (TRANSCO)
Financing
TRANSCO
Period of implementation
05.2008 - 12.2012
Bangladesh - Project "Western Grid Network Development Project, WGNDP"
Bangladesh expressed as main goal "electricity to all by 2021". With support from German Financial Cooperation through KfW, PGCB launched a feasibility study on the "Transmission System Improvement, Western Zone", in the framework of which tender documents were prepared for the following technical measures, packaged into 6 lots:
- 230 kV double-circuit transmission lines (new construction, line-in/line-out), in total 81.5 km
- 132 kV transmission lines, double- and single circuit (new construction, line-in/line-out, reconductoring, second circuit stringing), in total 242 km
- 132/33 kV substations (new construction (3), bay extensions (8))
- new construction of two 230/132 kV substations.
intec's services
Project Implementation Consultant (PIC), i.e.:
- Contracts management and administration, coordination between PGCB and Contractors
- Review and approval of design
- Random checks on FAT, and support during factory inspection and acceptance testing
- Progress monitoring on site
- Monitoring and supervision of the Contractors' environmental and social (E&S) management
- Payment certification
- Participation in and support for site testing, commissioning and handing-over
- Support during the defects liability period
- Training
- Record keeping and reporting.
Client
Power Grid Company of Bangladesh Ltd. (PGCB)
Financing
Kreditanstalt für Wiederaufbau (KfW
Period of implementation
7.3.2018 - 6.7.2021
