Projects

Hybrid 110kV Overhead and Underground Cable Line CCPP Vinča – SS Belgrade 20
Preparation of Design for Construction, As-built Design and Microproject (based on constructed line).

Services:
• Design for construction
• Adjustment of standard tower types to enable transition from underground to overhead line (additional consoles, strengthening of structure, etc.)
• Design of special foundations for the new tower
• As-built design
• Microproject

Detailed Design of reconstruction of 400kV OHL Ribarevine – Peć in Montenegro (replacement of tower No. 15)
Supply of design of steel lattice tower, design of special foundation and elements of detailed design.

Services:
• Adjustment of design of standard steel lattice tower (suspension tower) for supply to the Client in Montenegro
• Preparation of elements of the detailed design of OHL reconstruction
• Design of special foundations for the new tower
• Support to the Contractor in process of manufacture of steel lattice tower
• As-built design (civil part)

Morava Corridor Motorway Project
Design and Relocation Works of High, Medium and Low Voltage Electrical Lines in Sections 1, 2 and 3 (0.4kV, 10kV, 35kV and 110kV lines).

Services:
• Conceptual design
• Preliminary design
• Design for construction permit
• Advisory services to the construction company
• As-built design

Windfarm Bašaid – consultancy and design services related to the grid connection project (110kV OHL and 110kV Switchyard)
Design and consultancy services from the analysis of options for connection to the 110kV network to design for construction permit.

Services:
• Draft Design Terms of References for both components (OHL and SWY)
• Conceptual design
• Support during the preparation of spatial planning documentation
• Preliminary design
• Design for construction permit

Highway Е-70/Е-75 Belgrade Ring Road, section Dobanovci – Bubanj Potok, Section 6
Design of crossing and reconstruction of two 110kV and three 220kV OHLs.

Services:
• Design of towers – including workshop drawings
• Crossing studies
• Design for construction of 110kV and 220kV lines
• Follow-up of construction works and advisory services to the construction company
• Аs-built design

WB21-SRB-ENE-01 – Serbia, North CSE corridor, new 400/110 kV Belgrade West Substation and OHL 400 kV Serbia-Romania: Pre-Feasibility Study including Conceptual Design and Preliminary ESIA
Subproject includes 3 components:
1. Substation (SS) 400/110 kV Belgrade West with the alignment of the 400 kV and 110 kV OHLs
2. 400 kV OHL SS Belgrade West – WPP Čibuk 1 (app. 80 km)
3. Upgrade of existing OHL 400 kV Serbia (HPP Djerdap 1) – Romania (Portile de Fier) to double-circuit OHL (app 2 km)

Services:
• Project management (project team leader)
• Development of OHL corridor alternatives and technical assessment
• Development of alternative SS locations and technical assessment
• Comparison of project options and Multi Criteria Assessment (MCA)
• Pre-Feasibility Study
• Conceptual design of OHL and SS – Serbian legislation

400 kV single circuit OHL of approx. 90km between Ekhyddan and Nybro and a new 400 kV single circuit OHL of approx. 80km km between Nybro and Hemsjö
Power line engineer for review of detailed design for the Ekhyddan – Nybro – Hemsjö Project / Civil Part (Foundations).

Services:
• Review of detailed design (foundations, earthing, other general documentation)
• Participation at project progress meetings with designers and client (SVK);

35kV OHL and U/G cable SS Vinča – SS Vinča Deponija (2.8 km + 0.36km) and
35kV U/G cable from 35kV OHL No. 357 to SS Vinča Deponija (1.4 km)

Services:
• Design for construction
• Preventive Measures Plan
• As-built Design

400kV Interconnection Serbia – Montenegro – Bosnia and Herzegovina (WB13-REG-ENE-01)
Technical documentation preparation and TSO support
1. Preliminary and Detailed Design of 400kV OHL in three countries and terminal substation Pljevlja 2
2. ESIA / EIA Report
3. System network and market studies
4. Financial & Economic Assessment
5. Project Implementation Plan

Services:
• Project management
• ESIA / EIA
• Complete design services

400kV OHL Snösätra – Ekudden – Construction management and supervision –
Consultancy services and supervision of construction works on reconstruction of 400kV OHL, includiong technical management, project administration, review of technical documentation, project management and site supervision. Demolition works on existing line are included in the scope.

Services:
• Assistance to technial management and project administration;
• Review of technical and project planning documentation (electrical part);
• Participation in technical meetings;
• Drafting of reports;
• Supervision of site works – demolition of existing line and construction of new line;

OHTL 380 kV Meeden – Diele – Structural check of tower No.2 in front of SS Meeden with PLS TOWER
Design services within design of Substation Meeden – related to checking of terminal tower with new loading conditions

Services:
• Calculation of loads on tower after extension / reconstruction works in the substation, comparison with the loading table used for original design and proposal of measures (without structural analysis)
• Modelling of the steel structure in TOWER software (Power Line Systems Inc.) using the original tower design data
• Checking of steel structure for calculated actual loading table

Study on crossing of 110kV OHL No. 1203/2 SS Beograd 28 – SS Beograd 36 with new facilties (modern sculpture with infrastructure) built at the roundabout „Bogoslovija“ in Belgrade

Services:
• Geodetic survey of existing cable line using ultra sound method
• Study of relation between existing cable and new facilities
• Analysus of inductive influence of cable on metal elements of the sculpture
• Preparation of crossing study

Design review on projects of HV underground cable lines in the urban areas.
Finalized and ongoing projects:
• 110kV U/G cable SS Beograd 17 – SS Beograd 23 “Autokomanda”
• 110kV U/G cable SS Beograd 23 – SS Beograd 45
• 110kV U/G cable SS Beograd 45 – TETO Beograd

Services:
• Technical review and recommendation for improvement of design documents
• Participation in technical clarification meetings
• Issue of final technical review report

Technical Inspection of works on HV underground cable lines (110kV) during the construction works and upon commissioning.
Finalized and ongoing projects:
• 110kV U/G cable SS Kruševac 1 – SS Kruševac 3
• 110kV U/G cable SS Beograd 17 – SS Beograd 23 “Autokomanda”
• 110kV U/G cable SS Beograd 23 – SS Beograd 45
• 110kV U/G cable SS Beograd 45 – TETO Beograd

Services:
• Technical inspection, according to legislation of Serbia
• Checking of quality of works, as per approved design documentation, during the duration of works (electrical, civil, telecommunication)
• Checking of necessary design documentation, construction logs, certificates and testing documentation
• Checking of compliance of erected material and equipment with tech. documentation

110kV OHL No. 148/2 SS Bor 2 – SS Zaječar 2. Lead-in into 110kV SWY Bor 4 for supply of new mining complex.
Preparation of design documentation and support to the Client in preparation of general documentation (Terms of References)

Contract No.1 (12.2018 – 04.2019)
• Route of line selection study;
• Conceptual Design;
Contract No.2 (07.2019 – 06.2021)
• Conceptual Design – update;
• Preliminary Design;
• Tender Documents / Tech.Specs
Contract No.3 (10.2019 – 06.2021)
• Design for Construction Permit;
• Design for Construction;
• Supevision of construction works
• Consultancy services / project management

220kV OHL for connection of future Cogeneration Power Station Pančevo to the Serbian power grid. Design and consultancy services for implementation of the project, including conceptual design of OHL, design of friction piled foundations, preliminary and detailed design of OHL, preparation of tender documents for construction and support in process of provision of permits and consents.

Services:
• Route of line selection study
• Conceptiual Design of OHL
• Preliminary Design of OHL
• Detailed design of OHL (2 stages)
• Design of fricition piled foundations
• Tender documents
• Assistance in provision of consents and consruction permit

110kV OHL No. 107/2, lead-in into SS Ub, length approx. 10km. Preparation of design documentation from selection of the route line to Design for Construction and assistance to the Client in the process of provision of consents and permits.

Services:
• Route of line selection study;
• FS with the Preliminary Design;
• EIA Study;
• Crossing and other relevant studies;
• Design for Construction Permit;
• Expropriation study;
• Design for Construction;
• Tower design;

Design services for a steel lattice tower type A10+A30-550_5.0 (tension tower) for 380 kV OHL Airolo – Lavorgo

Services:
• Structural analysis of steel lattice tower in PowerLine TOWER software according to EN 50341-1:2012;
• Preparation of TOWER model – BAK file

Consulting Services for Construction of 400 kV Single Circuit Transmission Line Kragujevac 2 – Kraljevo 3 and extension of Substations Kragujevac 2 and Kraljevo 3. PIU Consulting services for implementation of the transmission network development project. The services include project preparation and implementation stage.

Services:
• Assistance in project management;
• Review of design documents;
• Preparation of PQ documents and participation in the PQ process;
• Preparation of tender documents;
• Participation in the tendering process including evaluation;
• Contractor’s design review and review of other technical documentation;
• Supervision of works;
• Project reporting.

Consulting Services for Implementation of Open Programme Extension of the Transmission Network II, EBRD Components. PIU Consulting services for implementation of the transmission network development project, including seven 500kV and 220kV overhead lines and reconstruction / upgrade of 500kV and 220kV substations in Georgia. The services include project preparation and implementation stage.

Services:
• Review of conceptual design;
• Participation in the PQ process;
• Preparation of Technical Requirements within tender documents (OHL);
• Participation in the tendering process including evaluation;
• Contractor’s design review and review of other technical documentation;
• Supervision of works;
• Project reporting.

As-built documentation and Reports on operation status of 63 (sixtythree) Overhead Lines (110kV, 220kV and 400kV) in Serbia

Services:
• Processing of geodetic survey data (LIDAR and ground survey) in PLS-CADD;
• As-built documentation for portion of overhead lines;
• Reports on operation status for portion of overhead lines

Feasibility Study and Preliminary Design of 225kV OHL Koukoutamba – Balassa (future) – Linsan – Maneah, Guinea (OMVS Project), length approx. 348km

Services:
• Conceptual design of OHL, including basic design input data;
• Assistance in generation and processing of terrain data;
• Modelling of OHL elements in PLS-CADD;
• Initial tower spotting;
• BoQ for Feasibility Study.

Training courses in electricity distribution and transmission topics in Erbil, Iraq (KRG)

Training courses include 15 training components, including numerous topics in design, operation, maintenance, repair of distribution and transmission lines, planning and design software (PLS-CADD, PSSE), street lighting, pole climbing and rescue, transmission system standards, etc.

Services:
• Preparation of training material (pre-design and design), subject to Client’s approval;
• Presentation of training courses and expert support, including theoretical and practical components;

Reconstruction of 110kV OHL No. 102B/1 and 110kV OHL No. 1128/1 in Kostolac, Serbia, for purpose of extension of electric power plant dock

Services:
• Conceptual design of OHL;
• Preliminary design of OHL, with details for construction;
• Crossing and other studies;
• Supply of steel tower designs;
• Geology report

Workshop drawings related to 4 tower types (selected parts) for 380/132/65 kV OHL Airolo – Mörel, Section Ulrichen – Fiesch

Services:
• Workshop drawings, prepared in Advance Steel software
• Technical specification of material

2x400kV OHL for connection of future Wind Farm „Čibuk“ to the HV grid; total length of the line 10.8 km

Services:
• Design for construction (electrical part);
• As-built design (electrical part);
• Internal review of design of towers (6 tower types) – design for construction and workshop drawings

110kV OHL and 110kV Switchyard for connection of future Wind Farm „Alibunar“ to the HV grid
Services:
• Overall Project Management Consultancy;
• Engineer role according to the FIDIC Yellow Book;
• Supervision in line with Serbian legislation

Underground Cable 110kV SS Belgrade 1 – SS Belgrade 6, (length approx. 5km in the Belgrade city centre)

Services:
• Conceptual design with route of line study
• Cable type selection study
• Feasibility study with preliminary design
• EIA study with EMF measurements
• Geotechnical study
• Crossing studies
• Design for construction permit
• Design for construction

Thermal Power Plants (TPP) „Nikola Tesla“- blocks A&B and Kostolac – blocks A&B, Monitoring and control of auxilliary consumption

Services:
• Participation in data collection process;
• Assistance in development of preliminary design (with variants);
• Development of basic design.

Review of Detailed Design of 35kV OHL Shuakhevi-Skhalta for Skhalta Hydro Power
Project in Georgia (developed by Adjaristsqali Georgia LLC); line length approx. 25 km;

Services:
• Preparation of general templates and procedures;
• Review of design data and equipment drawings and datasheets;
• Resolution of issues related to different design standards – international standards (BS, IEC) and locally applies standards (GOST and PUE);

Connectivity Networks Gap Analysis
Assessment of the identified projects of importance for WB6 region (6 countries in the Western Balkans non-EU countries), preparation of project list, based on ENTSO-E methodologies and TYNDPs and up-to date EU and Energy Community project lists (PCI and PECI);

Services:
• Energy (Electricity) Expert / GIS Expert Energy – responsible for identification of projects and coordination of GIS application concept preparation;
• Technical Assessment of selected Energy / Electricity projects in the Study Stage;

As-built documentation and Reports on operation status of 85 (eightyfive) Overhead Lines (110kV, 220kV and 400kV) in Serbia for Operation Permit application

Services:
• Processing of geodetic survey data (LIDAR and ground survey) in PLS-CADD;
• As-built documentation for portion of overhead lines;
• Reports on operation status for portion of overhead lines;

Supervision of construction works on reconstruction of existing 110kV, 220kV and 400kV OHL on crossings of new Highway E-763, section 3: Obrenovac – Ub:
– 110kV OHL No.121/2, 121/3
– 220kV OHL No. 213/1, 213/2, 204,
– 400kV OHL No. 436, 412

Services:
– Supervising Engineer in accordance with legislation of Serbia;
– Supervision of electrical and civil works;
– Checking of technical solutions;
– Participation in FAT and SAT;
– Cooridnation with the Client and Beneficiary;
– Approval of interim and final payment certificates

Feasibility Study and Preliminary Design – Feasibility Study – 400 kV OHL SS Bajina Basta – SS Kraljevo 3

Services:
• Project Management
• Transmission Construction Expertise (OHL and SS)
• 400kV OHL line routing, assessment of alternatives;
• Technical Assessment (OHL);
• Preliminary Design documents for 400kV OHL as per SRB legislation;
• Finalization of ESIA documents as per SRB legislation
• Project Implementation Plan

Feasibility Study and Preliminary Design – Electricity network expansion for the development of RES Energy
The project consists of the three elements:
1) 110 kV OHL Vilusi – Herceg Novi
2) Phase 1 of SS Brezna (110kV), including lead-in of 110kV OHLs
3) Phase 1 of SS Brezna (400kV), including lead-in of 400kV OHL – connection to 400kV OHL Lastva – Čevo

Services (OHL part):
• 110kV and 400kV OHL line routing: Preliminary and Alignment Survey of OHL corridors, assessment of alternatives;
• Technical Assessment (OHL) as per EBRD requirements;
• Preparation of Preliminary Design documents for 110kV line and 400kV lead-ins as per MNE legislation;
• Project Implementation Plan;

2x110kV OHL Murska Sobota – Mačkovci (length approx. 13.5km)
Design for construction and As-built design (electrical part)
Services:
• OHL design with preparation of profile drawings, calculations and checking, line schedule
• Preparation of As-built design

2x110kV OHL SS Pančevo 2 – new SS for connection of Wind Park “Bela Anta” (length approx. 10km);
Conceptual solutions with study of alternatives, Preliminary and Detailed Design, Expropriation Studies

Services (OHL part):
• Studies of OHL corrdiors and selection of technical solutions (towers, wires)
• 110kV OHL line routing: Preliminary and Alignment Survey of OHL corridors, assessment of alternatives;
• Preliminary and Detailed Design documents;
• Expropriation Study

Technical Inspection of HV overhead lines (110kV, 220kV and 400kV)
Long-term contract for Technical Inspection of overhead lines, according to legislation of Serbia. Finalised and ongoing projects:
• 2x110kV OHL Beograd 1 – Beograd 20
• 2x110kV OHL Beograd 3 – Beograd 20
• 2x110kV OHL Beograd 19 – Beograd 20
• 400kV OHL Beograd 8 – Pančevo 2, lead-in into SS Beograd 20
• 110kV OHL Majdanpek – Mosna
• 400kV and 110kV OHL, lead-in into SS Vranje 4
• 110kV OHL Stara Pazova – Inđija, lead-in into SS Inđija, etc.
• Reconstruction of 110kV OHL Valjevo 1 – HPP Zvornik, sections F, D and C
• etc.

Services:
• Technical inspection, according to legislation of Serbia;
• Checking of necessary design documentation, construction logs, certificates and testing documentation;
• Checking of compliance of erected material and equipment with tech.documentation;
• Checking of quality of works and material

Consulting services for preparation of Bidding Documents:
– Review of OHL Design and Bidding Documents
– Assistance to the Cient in the BD finalization and clarification procedure
(Project financed by the World Bank)

Design of OHL reconstruction – establishment of optical connection by OPGW or SkyWrap wire
Services:
– Update of existing design documents – profile survey, longitudinal profiles;
– Comparison study of applicable solutions and proposals for the Client;
– Detailed design of OHL reconstruction;

Study on construction conditions in the vicinity of OHL 110kV and calculation of electromagnetic field (EMF) at location of new whole sale market facility “Veletržnica”, Novi Beograd

OHTL 2 x 500 kV Meikhtila – Toungoo in Myanmar
Consulting services and design of steel lattice towers and foundations

Contracted services:
– Preparation of technical conditions for design and elaboration of preliminary design
– Detailed design with workshop drawings of two types of towers and foundations
– Consulting services during steel tower load test procedure

Feasibility Study with Preliminary Design of 220/110kV SS Bistrica, with access road and local road reconstruction. The following services included: – Feasibility Study per Local Legislation; – Preliminary Design including electrical, civil (structural calculation of civil facilities), telecommuncation and geology part;

Technical revision of Detailed Design of steel poles for overhead line 2x110kV SS Beograd 1 – SS Beograd 20 (3 pole types)

Feasibility Study of 400 kV Interconnection Lines, Serbia – Montenegro – Bosnia and Herzegowina (BiH)

Contracted services:
– Preliminary Design of interconnection transmission lines 2×400 kV between SRB, MNE, BIH
– General Design of substations 400/x kV at line ends
– Technical report and Project Implementation Plan (PIP)
– ESIA Study

Technical revision of Detailed Design of overhead transmission line OHL 2x(2×110 kV) section Kragujevac 1 – Kragujevac 8, along existing OHL 110kV No.186B/1, Book 1 i 2

Wind Farm Kladovo – Technical revision of Detailed Design of overhead transmission line 110 kV Switchgear Đerdap 2 – “Wind Farm Kladovo”

Studies on crossings of OHLs (numerous 110kV, 220kV and 400kV lines) over existing or planned facilities in Serbia

Services:
• Geodetic survey of OHLs and other objects;
• Modelling of OHL sections;
• Specific calculations of EMF and on – site measurements;
• Crossing studies;

Reconstruction of overhead lines 35kV, 110kV and 220kV, Highway E-70/E-75, Belgrade Ring Road, Sector 1-4, Sector 6, Section Batajnica – Dobanovci and Interchange Dobanovci

Contracted services:
– Preliminary survey for approval of route of lines corridors and preparation of draft Terms of Reference;
– Preliminary and Detailed Design of overhead lines;

Substation 110/10kV “Beograd 23 – Autokomanda”, in central part of Belgrade, in new commercial area;
Gas insulated switchgear 110kV (SF6).
Contracted servises:
– Feasibility Study,
– Basic Electrical Design,
– Tender Dossier,
– Fire Protection Study

330kV S/C OHTL Lokoja – Obajana (length 28 km)

– Detailed design (survey works supervision, profiles and tower spotting)

– Assistance services – technical matters

Feasibility Studies for Electricity Transmission Cross Border Investments in the Republic of Serbia, including feasibility study with system study, environmental study and preliminary design for:

– OHTL D/C 400 kV Interconnection Serbia – Romania and
– Substation 220/110 kV Bistrica

330kV D/C OHTL QIT – Ikot Abasi, Project C658 (length 70 km)

– Detailed design (survey works supervision, profiles and tower spotting);
– Elaboration of technical specifications and tender documents for supply and construction works;
– Assistance services – technical matters, wayleave issues.

2×110 kV D/C OHTL connection of HPSPP “Avče” to existing OHTL 110kV Gorica – Doblar, with 110kV U/G cable sections and connection in 110kV Switchgear (SF6)

Detailed electrical design for construction – OHL and U/G Cable 110 kV, Detailed design with workshop drawings of steel lattice towers and foundations

400kV S/C OHTL Niš – Border of FYROM (Macedonia) (141 km)

Supervising Engineer at the construction phase, according to FIDIC (Red Book):
– Technical evaluation if Contractors’ offers
– Review of Design and other documentation for Construction
– Approval of equipment manufacturers
– FAT and SAT of equipment

33 kV S/C, D/C and Q/C OHL ABA IPP Distribution System (95km)

Detailed Design, Technical Assistance for equipment procurement, Supervision of construction works (technical solutions) and Overall Project Management

Implementation of telecommunication system of EPCG, Component 1 – Optical Network (400kV, 220 kV and 110 kV OHTL – total length of 620 km)

Detailed electrical design, Checking and design for rehabilitation of towers, Elaboration of Tender Documents and assistance in the offers evaluation, Approval of Factory design, procedures and programs for FAT and SAT, Supervision of project implementation and commissioning.

400kV S/C OHTL Leskovac – Border of FYROM (Macedonia) (101 km)

Detailed electrical design (survey works, tower spotting, profile drawings and electro-mechanical design and wiring of SS bays), Detailed design of towers, Site investigation works and soil mechanics

132kV D/C OHTL Katampe – New National Stadium (28km)

Detailed design (analysis of available data, survey works supervision, tower spotting and profile drawings)

400kV S/C OHTL Niš – Leskovac (40.5 km) with associated 400 kV bays in S/S Niš 2 and S/S Leskovac 2

Detailed electrical design (survey works, tower spotting, profile drawings and electro-mechanical design and wiring of SS bays), Detailed design of towers, Site investigation works and soil mechanics, Elaboration of Tender Dossiers

330 kV 2xD/C OHTL Enugu – Ikot Ekpene (330km)

Detailed design (survey works supervision, tower spotting, profile drawings, electro-mechanical calculations)

Power Network System of Belgrade
110kV UG Cable SS Belgrade 1 – SS Belgrade 6 (6 km)
– Feasibility Study of 110kV UG Cable
– Basic Design of 110/10 kV UG Cable; route investigation, connection and control of terminal points by optical cable and terminal equipment; environmental study and soil investigation study

330kV S/C OHTL Benin Main – Benin North (12km)
132 kV D/C OHTL Benin North – Okada (25km)

Detailed design (survey works, tower spotting, profile drawings) and Assistance services – technical matters

Headquarters of Electric Power Industry of Serbia (EPS)
S/S 110/10 kV with associated U/G 110 kV U/G Cable – Tender Dossier

110 kV D/C OHTL and S/S 110/20kV for “Lesonit”Industry Facility

Detailed design of OHL 110kV link to the national transmission network

System of HPP at Vlasina Mountain (south of Serbia)
110/35kV Power Stations and Switchyards
Reconstruction by implementation of OPGW and integration into communication system of EPS

2×110 kV D/C OHTL connection of HPSPP “Avče” to existing OHTL 110kV Gorica – Doblar, with 110kV U/G cable sections and connection in 110kV Switchgear (SF6)

Basic electrical design – OHL and U/G Cable 110 kV, Basic design of towers and foundations, Elaboration of Tender Dossiers

OH link 220kV between new, 5th, aggregate in HPP “Bajina Bašta” and 220kV outdoor plant in HPSPP “Bajina Bašta”; associated control and protection systems

330 kV D/C OHTL Alaoji – Calabar (150km)

Detailed design (survey works supervision, tower spotting, profile drawings, electro-mechanical calculations), assistance services – technical matters

2×110 kV D/C OHTL connection of HPSPP “Avče” to existing OHTL 110kV Gorica – Doblar, with 110kV U/G cable sections and connection in 110kV Switchgear (SF6)

Basic electrical design – OHL and U/G Cable 110 kV, Basic design of towers and foundations, Elaboration of Tender Dossiers

OH link 220kV between new, 5th, aggregate in HPP “Bajina Bašta” and 220kV outdoor plant in HPSPP “Bajina Bašta”; associated control and protection systems

330 kV D/C OHTL Alaoji – Calabar (150km)

Detailed design (survey works supervision, tower spotting, profile drawings, electro-mechanical calculations), assistance services – technical matters

Urban road system of Belgrade Power Installations, section Slavija – Zicka

Public lighting, U/G Cable lines 1kV-110kV, Traffic lights, Telecommunication lines, Trolley system, TV cable system

Reconstruction and deviation of existing OHL 35kV and 110kV on the Highway No. E-75, state border (Hungary) – Beograd

Selection of routes, Detailed design, Tender documents