• PSI SASO DSO 2.0 - Data exchange with investment protection

    GLDPM provides you the opportunity to increase the network stability. Benefit from the future-proof PSI solution!

"Generation and Load Data Provision Methodology" (GLDPM)

In order to increase the supply security, information about the network capacities which are available now and in the future is necessary. This requires a comprehensive data basis in order to achieve a pan-European overview.

Following the respective EU regulation, the German transmission system operators (TSO) have decided in 2017 on the procedure for supplying the distribution network data (topology, generation, and load data) to the TSO. This methodology is called "Generation and Load Data Provision Methodology" (GLDPM). As of January 2018, Distribution system operators (DSO) must meet the new requirements.

The data exchange between transmission and distribution system operators is more important than ever!

How does this requirement increase supply security

The information about the available capacities is the basis for assessing the supply security and determining measures which may be required. The transmission system operators have been successfully exchanging data between companies. For example for the minute reserve, the capacity forecast enables compensation of frequency deviations due to volatile generation and demand.The expansion of the decentralized energy generation in low voltage networks up to medium voltage networks temporarily results in backfeed to the TSO networks. Only if the entire capacity is known to the TSO can a realistic forecast can be generated and the established supply quality be ensured in the future.

Take GLDPM as an opportunity - reusing the required data has the potential to increase the supply security of your medium and low voltage networks!

PSI is a competent partner at your side to meet the data exchange requirements.

We have developed a future-proof solution to meet these requirements. As a DSO, you can also significantly benefit from these.

Our future-proof solution

For the realization of the associated requirements, it is necessary to expand existing control systems and to add new components. For this purpose, PSI has developed PSIsaso/DSO 2.0 which provides you with a modular, expandable, and therefore future-proof solution.

Component PSIsaso/DSO 2.0

Data provisioning

Module "GLDPM"

Expansion module for your existing PSIcontrol


Auto-pilot for your network

Module "SASO"

Autonomous, control-system independent

Communication center & time series management

Module "PCOM+"

Autonomous, control-system independent


Optimal multi-criteria decision support

Module "Decision Support"

Autonomous, control-system independent

PSsaso/DSO 2.0 protects your investment in the future

We are already preparing for additional data supply obligations, for example for preventive use of spare capacities or replacement of standard load profiles by forecast/estimation values based on the actual prosumer behavior.


Module "GLDPM"

The energy transition results in higher utilization of the distribution networks. Continuous supply of energy is not possible with decentralized weather-dependent generation. Equal demand for the generated energy at all times of the day remains unlikely today as well as in the future.

Capacity calculation based on a standardized procedure for the electricity traded on the day-ahead and intra-day markets requires data exchange across networks. Under today's aspects, a transparent Europe-wide overview is absolutely necessary.

Since the beginning of 2018, the European transparency regulation requires all energy generators and plant operators to share their load and generation data with the upstream transmission network operators and to provide the corresponding equivalent network models.

What does this mean for you?

  • Generation schedules for conventional generation plants > 10MW and loads > 50MW must be provided to the adjacent transmission network operators.
  • Network data models must be provided for every hour of the day. They must be valid for the two following days.
  • The network models must include power flow scenarios which also consider the downstream networks.
  • The data acquisition must be documented to enable tracing. This includes all data sources, data paths, and data storage with appropriate information storage and retrieval.

Your benefits

  • Compliance with GLDPM requirements
  • Use of acquired data across multiple modules for stability calculation of the own network
  • Affordable installation by const-effective realization as standard application


    Module "SASO"

    Based on the new requirements for the distribution system operators imposed by GLDPM, PSI has examined other energy network developments in detail.

    With the expansion of renewable energies, the application "Security Assessment & System Optimization" (SASO) which was initially designed for transmission system operators now also provides substantial benefits to distribution system operators.

    DSO-specific features have been integrated in the SASO module which now provides you with an optimal basis for using the GLDPM data to ensure the stability of your high and medium voltage networks.


    • Forecast calculation for high and medium voltage
    • Network reduction specifically by energy provider
    • Consideration of imported planned outage requests/scheduled  outages (switching steps) from the network control system or other systems for determining the future topology
    • Status visualization for creating and exporting forecast datasets (based on JFE technology)
    • Transmission of a summary status to the network control systems which can generate alarms

    Your benefits

    • Seamless handling of various file formats

    • Basis for additional/future network security applications


    • Visualization of future states in network diagrams and station diagrams
    • Contingency analysis
    • Short circuit calculation
    • Switching measures
    • Infeed management measures
    • Determination of the reactive power potential
    • Network loss forecast
    • Overhead line monitoring based on weather forecasts


    Module "PCOM+"

    The separate PCOM+ module is used for exchange and archiving of time series. The extendable communication center operates as bi-directional communication interface to other systems. PCOM+ makes the forecast data which are processed in the SASO module available for documentation purposes or other uses (such as look-ahead network monitoring with day-ahead or 2-day-ahead time horizon) in your network control system.


    • Import interface for CGMES datasets which are provided by the network control system or other systems
    • Import interface for forecast infeed data
    • Import interface for load data in CSV format
    • Import interface for power plant schedules
    • Export of forecast datasets which are generated in the SASO module for the time horizons day-ahead and 2-day-ahead for the transmission system operator

    Your benefits

    • High performance input data processing
    • Versioned storage of time series
    • Overview of all communication processes
    • Expansion option for data exchange and time series management processes


    Module "Decision Support"

    With the increase of the decentralized energy generation, the importance of the usually static disconnection points in the network also increases. The "Decision support" module realizes dynamic optimization of the disconnection points which allows significantly better utilization of the entire medium and low voltage network while complying with the specified voltage bands. The objective of this optimization is to avoid additional network expansion measures.

    The "Decision support" module also provides support for network security. Intelligent energy networks require intelligent security applications for configuration of the field components as well as the management of the control center and the exchange of the required data. Even se-curity experts cannot easily detect slowly injected manipulations of the network. The AI algorithm developed by PSI FLS for pattern recognition detects irregularities which may appear irrelevant to human observers and which have no apparent effect on your current network status.


    • Dynamic disonnector optimization
    • Detection of manipulations

    Your benefits

    • Reduced network expansion cost

    • Increased network security


    Do you have questions about GLDPM and intelligent solutions for distribution system operators?

    Please contact us!

    Contact Person

    Dr. Guido Remmers
    Manager Division DSO

    +49 6021 366-337

    Source titel graphic: 3dkombinat | Adobe Stock