Wiener Netze GmbH
DSO - Austria
Publication info
| Publication status |
Published |
| Access link to GHC publication of the SO |
|
| Access type |
Open |
| Geographical Coverage |
Country/federal sates/DSO grid area |
| Spatial granularity |
Nodal (primary substation: please see additional information) |
| Voltage Level Coverage |
Available capacity and reserved capacity per primary substation (110 kV to MV, typically 10, 20, and 30 kV) on the busbar of the MV level |
| Time Horizon (e.g. Y+1, Y+3 / 202x / snapshot) |
Snapshot |
| Data Format (Table, Map, etc.) |
Map and Table |
| Grid user types covered |
The available and reserved capacity for generation (no differentiation between technology) |
| Displayed Capacity Type (e.g. available/requested/reserved/connected etc.) |
Available and reserved capacity |
| API Availability |
Openly available |
| Grid hosting capacity downloadable & format |
PDF (from DSO website) |
| Update Frequency |
Quarterly |
| Available language |
National language(s) only |
| Disclaimer & Important Notes |
|
Hosting capacity assessment
| Capacity type considered for available hosting capacity information (e.g., Firm and/or Flexible) |
Firm |
| Description of what firm capacity means |
The customer can use the contracted capacity without restrictions |
| Description of the aspects/methodology that leads to firm capacity results |
The calculation is made by each DSO based on the methodology defined in a specific regulation by the NRA. Available in PDF format (https://www.ris.bka.gv.at/Dokument.wxe?Abfrage=BGBLAUTH&Dokumentnummer=BGBLA_2022_II_350%20-%20link%20to%20PDF). The aim of the standardised calculation method is to provide a simple and transparent overview of the available feed-in capacities. The available grid capacities are determined at the MV busbar of the primary substation (high voltage (HV) to MV). Potential limitations of the MV and LV networks are not considered for this assessment. This also applies to voltage regulation in the MV grid, as almost all transformers from HV to MV are equipped with voltage control. The methodology consists of the following steps:
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| Description of what flexible capacity means (if applicable) |
A new law (ElWG) was enacted in Austria at the end of 2025. This law regulates flexible grid access for the first time. The specifics of how flexible grid access will be implemented are currently being worked out. |
Additional information for connection request and hosting capacity information
| Connection request procedure | The Austrian capacity map is designed to provide grid users, project developers, etc., with an indicative overview of available and reserved grid hosting capacities. For a binding grid connection offer, it is always necessary to contact the responsible DSO for a detailed connection analysis. This analysis takes into account factors such as spatial constraints, short-circuit current limitations, and other technical considerations and requires comprehensive information from the customer. |
| Available options for the investors if the map shows “no capacity available” in their interested area | Even in cases where the map indicates “no capacity available”, it is recommended to reach out to the relevant DSO to explore alternative options. |
| Connection request rules/principles | First come, first served until 12/2025. Since 12/2025 first ready, first served |
| Information published for volumes of connection requests/waiting lines | No |
Relevant references/Links/Additional material
DSO