Our references

Reference Project Mali

Customer: ECM Sarl (Energy Company of Mali)

Technical, economic, financial, environmental and social feasibility study for photovoltaic systems of 40 MWp in Kambila and 50 MWp in Safo” in Mali.

  1. Grid and grid stability studies (including but not limited to the study of
    short-circuit currents, load studies, power quality studies, stability studies, including grid connection costs and barriers) ;
  2. The stability study of the national interconnected grid (NVN).
    – Calculation of the load flow :
    o Normal operation established,
    o Evaluation of short-circuit currents.– Dynamic behaviour:
    o static stability,
    o Transient stability.
    – Analysis of harmonics.
  3. connection to the network.
    – Analysis of the existing load in the vicinity of the selected sites, taking into account the specifications of the network in that area ;
    – Connection requirements;
    – Analysis of the influence of PV power plants on the grid, especially on voltage, frequency,
    harmonics, fluctuations, etc.
  4. Dynamic study essentially aims at the following points:
    – Validation of the capacity maximum exchange capacity included in the static study ;
    – Analyzes of network security to determine strategies to maintain acceptable operating conditions during normal operation and to secure the system during a failure.
    – Assessment of transient stability, which aims to verify the immunity of the network to strong disturbances being tested by
    Disorders of different types and accordingly
    mainly to faults three-phase interference, loss of a power unit production loss, transmission line loss and load loss.
    – Assessment of the stability statics of the interconnected electrical system with a view to assessing its stability in the event of small disturbances

Reference Project Niger

Customer: Nigelec (Society for Energy of Niger/ Gorou Banda)

Study on the connection of a 20MW battery storage system to a mast system HV station and design of a MV station with existing connection (connection of a 20MW battery storage system to the 66kV or 130kV grid)”. HV station and design of a MV station with existing grid connection in 66kV or 130kV) in Niger

Detailed technical planning of the grid connection
of 20MW battery storage from LV/MV transformer to MT transformer. MS to HS connector.

  • Detailed design and description of electrical plant equipment and protection systems (except LV/MV transformer)
  • Sizing the cables and estimating theirs
    length
  • Detailed description of the MS station
  • Description of the required updates for the Scada existing
  • Validation with the customer’s field team that the solution proposed is workable

Network Modeling & Network Calculation ( PSS Sincal )

Customer: E.ON Deutschland AG

  • Carrying out a network compatibility assessment (NVP)
  • Technical advice regarding the next possible NVP of the feed-in plants
  • Preparation of concepts for network reinforcement measures.
  • Recording of the essential input parameters
  • Testing of the NS network model
  • Execution of the reconciliation of different primary data sources (GIS, feed-in database)

Planning the distribution network ( PSS Sincal )

Customer: Schleswig-Holstein Netz AG

  • Execution of the reconciliation of different primary data sources (GIS, feed-in database)
  • Testing of the NS network model
  • Recording of the essential input parameters
  • Preparation of concepts for network reinforcement measures.
  • Technical advice regarding the next possible NVP of the feed-in plants
  • Carrying out a network compatibility assessment (NVP)

Telecontrol with PSIcontrol and PSIprins software

Customer: PSI SOFTWARE AG

  • Analysis of the customer’s telecontrol lines for technical changes and errors based on existing requirements and messages that are stored in Jira
  • Concept creation for the implementation of the analyzed changes or errors, in particular the protocols IEC870, IEC61850, TASE.2, OPD-DA, OPC-UA, SINAUT, Modbus
  • Extraction of data from the transmission logs
  • Adaptation or renewal in PSIcontrol or PSIprins for transfer to the end customer’s control systems and their testing
  • Analysis of error messages in Jira regarding functional defects in data transfer
  • Correction of errors in PSIcontrol or PSIprins for transfer to the customer’s control systems and their testing
  • Creation of technical documentation
  • Participation in weekly meetings of the FWT specialist team for status comparison

Grid connections for consumers / feeders

Customer: RWE

  • Grid planning in the high and medium-voltage grid with the NEPLAN grid planning tool
  • Development of target grids taking into account existing consumers and feeders
  • Data preparation for grid connections for consumers or feeders
  • Planning of new constructions/ conversions/ dismantling of overhead line and cable systems
  • Maintenance planning for overhead line and cable systems, switching devices and switchgear
  • Preparation of tender documents
  • Processing of projects
  • Coordination of trades to optimize and ensure project execution
  • Participation in construction meetings
  • Preparation, follow-up and participation in coordination meetings

Concept development and consulting in the field of network connections and commissioning.

Customer: Nordex SE

  • Creation of a concept for the commissioning of new network connections
  • Technical consulting for the installation of the network connections
  • Stakeholder management (network operators, customers and internal project staff)
  • Analysis of contractual requirements
  • Preparation of specifications

Network planning industrial networks and distribution networks (HS / MS/ NS)

Customer:
Westnetz GmbH

  • Assessment of the demand situation and development of solution variants (basic and implementation planning and documentation) for medium and low-voltage electricity grids in accordance with specified guidelines and taking development planning into account
  • Integrating the topics of the energy transition into the projects, such as decentralised feeders and e-mobility and planning the smart distribution grids of the future.
  • Conducting cost comparisons and profitability calculations in the course of determining possible solution variants. Responsible for the preparation of implementation documents, service specifications and cost estimates, including the post-calculation of projects and obtaining approvals for measures.
  • Overall process planning/control as well as determining and adhering to the budget for measures and schedules for complex construction measures.
  • Hiring external companies, scheduling materials, negotiating with external partners (customers, authorities, utility providers, etc.) and maintaining the necessary correspondence for project execution.
  • Monitoring the construction progress of projects and ensuring their successful realisation.

Tasks and Responsibilities

  • Support in designing the electrical supply concept for the construction project.

  • Planning the implementation of the concept and obtaining certifications.

  • Parameterization and testing of secondary technology, as well as obtaining the conformity declaration.

  • Registration in the market master data register and clarification of direct marketing.

Key Tasks and Responsibilities

  • Modeling of the low-voltage network, including the transfer station, and conducting load flow and short-circuit calculations for dimensioning and parameterization purposes.
  • Design of the transformer station (primary and secondary technology) according to project-specific requirements and the technical connection conditions of the distribution network operator.
  • Creation of single-line and three-line circuit diagrams. The single-line diagram is intended for submission to the network operator and the certification body for the PV system.
  • Coordination with the station supplier and, if necessary, evaluation of alternative suppliers.
  • Submission of planning documents for approval by the distribution network operator.
  • Procurement of the plant certificate and submission to the distribution network operator.
  • Filing of funding applications for EEG (Renewable Energy Act) systems.
  • Parameterization and testing of secondary technology, as well as obtaining the conformity declaration.
  • Registration in the market master data register and clarification of direct marketing.

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