Krátí se čas na podání žádosti o licenci na bateriová úložiště

On 1 October 2025, a significant amendment to the Energy Act, referred to in the media as Lex OZE III, came into effect. The biggest changes affect the operation of energy storage systems. The Energy Act now includes the term "electricity storage in electricity storage facilities" as a regulated business activity. To operate such facilities, a license for electricity storage must be obtained from the Energy Regulatory Office. Another new feature is the possibility to connect energy storage systems to the grid independently. Previously, the law required that the storage be connected only directly to another energy source.

License holders for electricity storage now have a status comparable to electricity producers. This means not only the obligation to meet technical and market standards but also the ability to supply energy to the grid or provide ancillary services. This status fully integrates storage facilities into the market environment.

However, not all storage systems require the new license. The obligation does not apply to facilities with an installed capacity of up to 100 kW. A license is also not required if the storage is connected to an energy source and its capacity does not exceed 1.2 times the capacity of that source. However, storage systems with a capacity of less than 100 kW can only supply energy to electricity traders or the organized electricity market.

What do these changes mean for operators who launched their storage systems before 1 October 2025? It is important to note that their existing production licenses no longer apply to these facilities. Therefore, it is necessary to apply for a separate license for electricity storage to operate the facility.

Transitional provisions allow these facilities to operate for six months from the effective date of the amendment under the original production license, or until the completion of the licensing process for electricity storage, provided the operator applies for it in a timely manner. Operators of these facilities must submit their application to the Energy Regulatory Office by 1 April 2026, at the latest.

Authors:

Ondřej Havránek

Jakub Marko

Tomáš Černý