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System Operation Guideline (SOGL)

Principal objectives and contents 

Commission Regulation (EU) 2017/1485, establishing the Guideline on Transmission System Operation (SOGL – System Operation Guideline), entered into force on September 14, 2017. It harmonizes requirements for transmission system operators (TSOs), distribution system operators (DSOs), and significant grid users (SGUs). Its key objectives are to:

  • create a clear legal framework for grid operation,
  • ensure system security,
  • guarantee the availability and exchange of required data and information between TSOs and between TSOs and all other relevant parties,
  • support the integration of renewable energy sources,
  • facilitate EU-wide electricity trading and thereby promote competition in the interest of consumers.

 

Ongoing consultations

You can find all ongoing and completed consultations in our document hub. 

Approved specifications, terms and conditions or methods

The data exchange requirements defined in Regulation (EU) 2017/1485 (SOGL) were specified in Austria in the Data Exchange Regulation (“SOGL Data Exchange V”) and transposed into national law. Link to SOGL Data Exchange V.

 

Transmission of Master Data, Availability/Schedule Data, and Meter Readings of Significant Grid Users (SGUs) in accordance with the SOGL Data Exchange V (initially effective July 15, 2021; amended December 1, 2024)

Implementation of the SOGL Data Exchange Regulation V as of December 1, 2024 

With the amendment of the Data Exchange Regulation effective December 1, 2024, all previous concessions granted by APG are revoked. All relevant data must therefore be transmitted to the transmission system operator (TSO) strictly in accordance with the regulatory requirements.

  • Master Data in Accordance with Section 5 of the SOGL Data Exchange Regulation V

Unless otherwise agreed with APG, network operators must transmit master data for each metering point via the “Energy Industry Data Exchange” (EDA platform), following the “Other Market Rules” and the associated ebUtilities processes (SOGL_MD or SOGL_END, valid from October 6, 2025), within the cascade: network operator → distribution system operator → transmission system operator. Additional master data required for schedule exchange must be transmitted by the respective responsible entities — such as service providers, plant operators, suppliers, or balance group representatives (BGRs) — referred to as “operators of significant power generation or consumption facilities” under the 2024 SOGL Data Exchange V. This means supplementary master data on units (generators/pumps/storage facilities), metering points, and schedule groups (e.g., jointly controllable units). Until further notice, this additional master data will be exchanged — following prior bilateral coordination with APG — via email: stammdaten@apg.at.

  • Availability Data for Power Generation Facilities in accordance with Sections 6 and 8 of the SOGL Data Exchange V

    Schedule data in accordance with Sections 7 and 8 of the SOGL Data Exchange Regulation
    Schedules for significant consumption facilities in accordance with Section 11 (5) of the SOGL Data Exchange Regulation

The transmission of availability data (Production Availability Schedule "PAS") and electricity generation and consumption schedules (Production Responsible Party Schedule "PPS") is conducted using the ESS format (ENTSO-E Scheduling System) once all required master data have been clarified. The procedures for data transmission and detailed content requirements for schedules are defined in the “Other Market Rules for Electricity – Schedules”.
For questions, please contact netzwirtschaft.backoffice@apg.at.

 

  • Real-Time Data In accordance with Section 9 SOGL Data Exchange V

Real-time data under Section 9 (2) items 1–6 are transmitted within the cascade: SGU → connection distribution network operator → distribution system operator → APG. Exchange between the SGU and the connection distribution network operator occurs at the data transfer point (property boundary) via standard telecontrol protocols (e.g., IEC 60870-5-101). Transfer to the DSO and subsequently to APG is also carried out using standardized protocols (IEC 101, IEC 104, TASE.2). For real-time data transmission under Section 9 (2) items 7–8, media independent of the control system are agreed upon through bilateral coordination between the operator and APG. For questions, please contact info.sogl@apg.at.

 

  • Meter readings in accordance with Section 10 of the SOGL Data Exchange V

 

Meter readings must be transmitted in an encrypted, secure, and automated manner via the Energy Industry Data Exchange (EDA platform). For inquiries regarding transmission and processing, please contact clearing.sogl@apg.at.

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