Breakthrough project
On Thursday, April 24, 2025, the reservation of the battery storage (BESS) developed and operated by FENIX Group in its industrial area in Jeseník was successfully registered. "Right after midnight, we were activated by our aggregator Nano Energies to provide frequency containment reserve services for ČEPS, which ensures the operation of the electricity transmission system in the Czech Republic," says Cyril Svozil Jr., Chairman of the Board of FENIX Group.
Certification from the Transmission System Operator ČEPS
The Fenix Group Holding in Jeseník has installed a new battery storage system (BESS) with a power of 1 MW and a capacity of 2.4 MWh to provide ancillary services for ČEPS. The new large-capacity industrial BESS received certification from the transmission system operator ČEPS for providing frequency containment reserve (FCR) services in March 2025.
"The first activation went perfectly, and during Friday, April 25, 2025, we delivered 1 MW to the grid seven times. From today, we will carefully monitor the operation of our BESS (1 MW power / 2.4 MWh capacity) and continuously publish the results, especially the economic ones, on our website," said Cyril Svozil Jr., Chairman of the Board of Fenix Group.
"Thanks to this step, we can now operate as a standard provider of ancillary services and, in accordance with the needs of ČEPS, we will either draw electricity or supply it to the grid at times requested by ČEPS. For these services, we will subsequently receive financial compensation. Our main goal is to validate the technical solution and evaluate its economics, and if everything works as expected by us and the transmission system operator, we will offer such storage systems to our customers," adds Cyril Svozil Jr.
In the future, Fenix Group plans to become an aggregator of ancillary services. For Jeseník, the company has set the power and capacity of the BESS to ensure maximum efficiency for a wide range of customers rather than competing on price. "This approach has proven successful for our other battery storage systems for households and businesses. Lower power and capacities are, of course, more price-attractive, but in real operation, they do not allow full utilization of the wide possibilities of our systems," adds Cyril Svozil Jr.
Ensuring Stability and Reliability of the Electrical Grid
Frequency containment reserve (FCR) services are not new; they play a crucial role worldwide in preventing power outages (blackouts) and maintaining grid frequency at a stable level. Rapid response to deviations in supply and demand is essential for ensuring the safe operation of the energy system. Integrating battery storage into the energy grid can also mean a more stable and efficient use of renewable energy sources.
FENIX Group's BESS, designed for providing frequency containment reserve services, enable rapid and flexible response to fluctuations in energy supply and demand. This helps maintain a stable grid frequency, which is crucial for preventing outages and ensuring reliable energy delivery.
"Our batteries can provide both positive and negative frequency containment reserve services, meaning they can quickly supply energy to the grid or accumulate energy in case of surplus. For companies, the economic benefits are, of course, key, and from our many years of experience, we see that investments in battery storage can lead to operational cost savings through efficient energy use," concludes Cyril Svozil Jr.
This article was sourced from the news portal Solární Novinky.
