Tennet
TSO - Germany
Publication info
| Status of publication |
Published |
| Link to website |
https://www.tennet.eu/de/strommarkt/kunden-deutschland/netzanschlussanfragen |
| Accessibility |
Open |
| Regional Scope |
Control zone (extra high voltage only) |
| Spatial granularity |
Only substations with available (future) connection capacity are shown. |
| Operator voltage level scope |
220 kV, 380 kV |
| Timeline for which HC is provided |
Potential commissioning years: 2030 - 2036 |
| Information format |
Map and Table |
| Categories of grid users considered |
Demand and storage |
| Type of grid connection capacity information |
Availability |
| Availability of API |
Not provided |
| Update Cycles |
Based on the grid connection procedure cycles: currently every 10 months |
| Available language |
National language(s) only |
Hosting capacity assessment
| Capacity type considered for hosting capacity information |
Firm |
| Description of what firm capacity means and the aspects that structure the definition |
Firm capacity for demand means maximum admissible grid usage (offtake) subject to the contracted capacity (three-phase effective power) and connection rules (ramping, harmonics etc.). In general, no further operational constraints are applied, also not temporal. For generation and storage units, firm capacity refers to the contracted maximum three-phase effective power of feed-in or offtake (for storage units). (Temporal) operational restrictions (imposed redispatch orders) must be complied with. Compensation schemes are applied. |
| Description of the methodology that leads to firm capacity results |
Under development |
| Description of what flexible capacity means and the aspects that structure the definition |
Currently not applicable. |
| Description of the methodology that leads to flexible capacity results |
Not provided |
| Description for the criteria and methodologies used that lead to the published information |
Available switch bays and potential built outs (with secured land rights) have been considered, reserverations were deducted. Further, the already connected units and transformers to the distribution grid have been considered to check for potential violations of the maximum load and generation that can be connected to a busbar (“3 GW criterion”). Prominent short-circuit-related restrictions have been considered as well. |
| Main assumptions/disclaimers behind calculations |
The simulation results are indicative and not legally binding. Further in-depth studies are required during the grid connection process, e.g. regarding short-circuit capacity. |
Additional information for connection request and hosting capacity information
| Connection request procedure |
Explained on the following page: https://www.tennet.eu/de/strommarkt/kunden-deutschland/netzanschlussanfragen |
| Options available for the investors if the map shows 'no capacity available' in their interested area |
Subject to project specific studies, longer lead times (several years) are likely. Please contact netzanschlussanfragen@tennet.eu. |
| Connection request rules |
Other (please specify) |
| Information published for volumes of connection requests/waiting lines |
No |
| Granularity of published connection requests/waiting lines |
NA |
| Additional information |
First-ready-first-serve procedure for demand and storage units, based on maturity score, with application window. For powerplants, the connection procedure is determined in the Ordinance on the Regulation of the Grid Connection of Installations for the Generation of Electrical Energy (KraftNAV, "first-come-first-serve"). For renewable energy sources, the connection procedure is determined in the Law for the Expansion of Renewable Energies (EEG, "first-come-first-serve"). |
Relevant references/Links/Additional material
Study on grid-friendly locations for electrolysers (in German): https://tennet-drupal.s3.eu-central-1.amazonaws.com/default/2022-07/Quo-Vadis-Elektrolyse_DIN-A4_quer_V8_download.pdf Study on grid-friendly hydrogen power plant locations (in German): https://tennet-drupal.s3.eu-central-1.amazonaws.com/default/2023-05/Studie%20QuoVadis%20Wasserstoffkraftwerke.pdf Study on grid-friendly large-scale battery storage locations: https://tennet-drupal.s3.eu-central-1.amazonaws.com/default/2024-12/QuoVadis3_Webversion_Englisch.pdf
Please refer to the references listed on our website
Connection request process: Please read the accompanying text carefully and contact us in case of unclearities.