In CIRCE we have more than 15 years of experience in simulation and modeling of electrical power systems, and we have the software tools necessary to perform all kinds of network studies, adapting to the needs raised by each of our customers.

More than 75 projects and more than 25 renewable plants connected to the electricity grid complying with Grid Codes:

  • Modeling and simulation of electrical systems of both renewable and conventional power.
  • Modeling of FACTs devices
  • Studies of transient phenomena.
  • Verification of compliance with requirements for connection to the generation system network
    • Load flows
    • Short-circuits
    • Consignment tracking
    • Network quality
    • LVRT and HVRT
  • Field trials: verification of network code compliance.
  • Design, modeling, simulation and operation of mobile testing laboratory.
  • Impact of generation connection to the electricity grid.
  • Isolation and grounding coordination studies.
  • Repowering of power lines.
  • Characterisation and identification of the control systems of conventional generation plants.
  • Characterization and static and dynamic modeling of loads.


  • Studies

    Network Electric Grids and Smart Grids

  • Giving

    Models that represent the real behavior of generation systems

  • Designing

    Operation strategies to optimize the use of facilities already in service.

  • Understanding

    Phenomena occurring in electrical systems and the search for solutions to improve their functioning


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Our objective is to create an effective solution that is uniquely adapted to your company and meets your company’s needs.

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