Energocentrum Vítkovice of the ČEZ company in Ostrava (pictured on March 7, 2018).
Ostrava – ČEZ Group is building the largest accumulator in the Czech Republic in Ostrava-Vítkovice. The capacity of the battery storage will be ten megawatts, and the system will hold 9.45 megawatt-hours of energy, i.e. three times the current largest ČEZ battery in Tušimice in Chomutovsk. A battery as big as a family house, the construction of which will cost more than 100 million crowns, is supposed to help stabilize the Czech energy system. It will be fully operational in the second half of this year. CEZ Group spokesman Vladislav Sobol told ČTK today. CEZ aims to build new energy storage facilities with a capacity of 300 megawatts by 2030.
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“The storage system will support the transformation of the Czech energy industry and contribute to the stabilization of the energy network thanks to the provision of power balance services,” said the spokesperson.
The large-capacity battery in the premises of the Energocentra Vítkovice will operate in conjunction with the conventional unit, which is an important regional supplier of energy. The contractors are ČEZ Energetické služby from the ČEZ ESCO group and IBG Česko. The operator will be ČEZ Energo from the ČEZ ESCO group.
“In addition to classic energy storage, the battery will primarily enable the provision of various types of support services, led by primary frequency regulation. In practice, when the frequency in the network drops below 50 hertz, the battery system will start supplying regulatory energy within milliseconds, and vice versa, when the frequency is above 50 hertz, it will be taken from the system to withdraw,” the company said. CEO of ČEZ ESCO Kamil Čermák stated that, in addition to providing support services, the battery system in Vítkovice can, for example, cover the daily consumption of 1300 households. for providing support services. Since 2019, the Tušimice power plant has operated a storage system that can hold 2.8 megawatt hours of energy.
“European energy is changing dynamically, but the basis remains secure energy supply and network stability. Therefore, the requirements for capacities for reliable storage or, conversely, rapid delivery of energy and also for the provision of so-called support services. Our goal is to build 300 MW in storage by 2030, and we are intensively working on the first major projects,” said Daniel Beneš, Chairman of the Board of Directors and CEO of ČEZ.
