Electricity and Automation


  • Power generation (high and low voltage)
  • Electricity distribution (high and low voltage)
  • Energy transmission (high and low voltage)
  • Automation
  • Centralised control systems for power grids
ligne électrique 400kV


  • ETAP PowerStation
  • SEE Electrical Expert
  • Caneco
  • Amtech Office Pro
  • Elec Calc (TR-CIEL)
  • AutoCAD
  • MicroStation

Design studies


  • Short-circuit currents
  • Voltage drops
  • Dynamic stability and start-up of motors
  • Power balance
  • Selectivity
  • High- and low-voltage cables
  • Overhead lines


  • High-voltage substations
  • High-voltage equipment (outdoor and indoor)
  • Low-voltage equipment (outdoor and indoor)
  • Power transformers
  • Centralised control systems
  • High- and low-voltage cables
  • Overhead lines
  • Turbogenerators
  • Diesel generators
  • Electric motors
  • Starters
  • General installation


  • Single-line diagrams
  • Network structure
  • Protection systems and measures
  • Mechanical latching


  • Dimensions and layout
  • Standard diagrams (high and low voltage)
  • Centralised control systems
  • General architecture and screen views

Detailed studies


  • Equipment dimensions and installation
  • Lighting circuits
  • Running of cables
  • Master plans for civil engineering
  • Master plans for mechanical structures
  • Ground loops

Power balance

Selectivity study

High- and low-voltage cables

  • Calculation notes
  • Detailed lists and routing
  • Interconnection diagrams

High- and low-voltage equipment

  • Detailed single-line diagrams
  • Detailed cabling diagrams
  • Installation plans
  • Equipment list

Centralised control system

  • Architecture/monitoring system
  • Logic diagrams
  • Definition of inputs/outputs
  • Screen view details
  • Configuration and programming


  • File preparation
  • Clarifications with suppliers
  • Comparison tables


  • Orders
  • Production monitoring
  • Factory acceptance testing (FAT)


  • Construction supervision
  • Testing
  • Start-up assistance
  • Work acceptance
power station for industry

Instrumentation and Control Systems


  • Instrumentation and Control
  • DCS, Monitoring
  • Safety automation
  • Fire and Gas Detection


  • SmartPlant Instrumentation
  • SmartPlant PID
  • PDS
  • AutoPlant
  • AutoCAD
  • MicroStation
  • PDMS
  • SmartPlant 3D

Basic studies

  • General specificationsInstrumentation and DCS
  • Specifications
  • System architecture and control system design
  • Preparation of technical files for consultation
  • Fire and Gas detection study



  • PFD and P&ID diagrams
  • Instrument lists and I/O lists
  • Specifications and data sheets
  • Calculations relating to valves and pressure devices
  • Installation and routing plans
  • Assembly standards
  • Equipment bills of material
  • Terminal and terminal jumper plans
  • Group cabinet plans
  • Technical room and control room layout plans
  • Loop diagrams
  • Interconnection diagrams


  • Instrumentation and DCS
  • Assembly and connection
  • Engineering time


  • Supplier research and consultations
  • Bid analysis and comparison
  • Order preparation
  • Order submission for an order and account
  • Document tracking and follow-up
  • Factory acceptance testing (FAT)

Control Systems

  • Industrial and logical systems
  • System architecture
  • Definition of inputs/outputs
  • Functional analysis
  • Cause-and-effect matrix
  • Flowcharts
  • Regulation diagrams
  • Control diagram


  • Construction supervision
  • Testing
  • Start-up assistance
  • Work acceptance

Piping and General Installation


  • Piping
  • Sheet metal work
  • Support
  • Civil engineering
  • Structural steel work
  • Flexibility calculations
  • Work supervision


  • SmartPlant 3D
  • PDMS
  • PDS
  • CADWorx
  • Caesar II
  • AutoCAD
  • MicroStation

Preliminary studies

  • Functional specifications
  • Installation design
  • Feasibility studies
  • Project development(diagrams, plans, technical specifications)

Basic studies

  • Budgeting
  • All trade coordination
  • Customer approval file


Detailed studies

  • Process diagrams
  • Technical specifications
  • Equipment list
  • Line lists
  • Valve and fitting lists
  • Equipment installation plans
  • Master plans for civil engineering
  • Piping plans (layout)
  • Piping isometrics and bills of material
  • Piping support plans
  • Equipment general plans and detailedplans
  • Company consultation dossiers

Tendering dossiers and follow-up

  • Supplier consultations
  • Analysis of bids and technical alignment
  • Comparison tables of technical and business bids
  • Supplier document tracking
  • Factory acceptance testing (FAT)

End-of-project dossiers

Executed structure dossiers (as built)

réalisation tuyauterie


PF offshore 1
  • Construction supervision
  • Testing
  • Start-up assistance
  • Work acceptance

Project Management and Support

It is important to offer our customers comprehensive services in addition to our expertise in traditional business areas (electricity, instrumentation, piping, etc.). That’s why TVA Group now provides a full range of EPC industrial project management services.

Our experts are located at our Antony headquarters, where they manage our studies and turnkey projects, and at customer sites, where they work directly in project teams.

Our experts include:

Project Engineers

The project engineer designs and implements projects. Project engineers also provide technical, administrative, and budget management, right from the design phase until completion. They are the direct link with the customer.

Planning Engineers

The planning engineer translates the project strategy in terms of its deadlines and sequencing. Planning engineers track the progress of projects, analyse deviations, and suggest action plans to correct deviations.

Doc Controller/Project Assistants

The Doc Controller/Project Assistant stores, updates, and distributes all paper and electronic documentation involved in the life-cycle of a project, to all appropriate parties.

Industrial Buyers

The Industrial Buyer is responsible for finding suppliers and negotiating with them to supply materials to meet the needs expressed by the project’s technical teams.

Logistical Engineers

The Logistical Engineer coordinates the flow of equipment with the main objective of shortening deadlines and reducing costs. Logistical Engineers select carriers and freight forwarders and negotiate prices with them. They optimise storage and handling.