In the Czech Republic, hosting capacity information is published by the TSO and DSOs.  

At the TSO level, the Czech TSO (ČEPS) publishes the hosting capacity map on the ČEPS website. This map provides a nodal representation of the Czech transmission grid, using three status indicators for investors: available capacity, conditionally available capacity, and unavailable capacity. 

Only firm capacity is shown on the map. The methodology for determining firm capacity is based on the following criteria: the results of static load-flow analyses, short-circuit analyses, the availability of bays in substations or the possibility of extending existing substations, and the quality of electricity at the given location.  

The potential to connect synchronous or asynchronous generation depends on the local quality of electricity. Similarly, the feasibility of connecting generation or load is determined by the results of static load-flow and short-circuit analyses.  

The minimum connection size to the transmission grid is 250 MW (400 kV grid). 

Capacities above 1,000 MW cannot be estimated without a location-specific analysis carried out as part of the formal connection request process. 

Legal validity: The information provided in the hosting capacity map is non-binding. To reserve or acquire connection capacity, a formal connection request must be submitted.

For DSOs, under Act No. 469/2023 Coll., distributors are required to publish and update once a month on their websites the data on the number of accepted and rejected requests for connection to the distribution system and an interactive map containing the following information for all areas defined by the license.

This provides transparency and helps stakeholders better understand capacity availability at various stages of the distribution network.

The interactive map is published on the websites of the three regional distribution system operators (EG.D, ČEZ, and PRE) and displays the following information:

• For each area of operation: information on the available capacity of the distribution system at the HV/MV level

• For the LV: information at the transformer level, anonymised data on accepted and rejected requests (including the number of agreements on alternative connection) aggregated for substations, and anonymised connection requests based on accepted and rejected applications.