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CATL Battery Energy Storage System 5.644 MWh for Grid Balancing Services
Project completed in 2026 | Czech Republic
We delivered a turnkey CATL battery energy storage system (BESS) with a power output of 2.156 MW and a storage capacity of 5.644 MWh.
From foundations and transformer station installation to positioning a 45-tonne battery container and integrating the system into grid balancing services and electricity trading.
Project specifications
Technology: CATL
Power output: 2.156 MW
Storage capacity: 5.644 MWh
Battery container weight: approximately 45 tonnes
Application: grid balancing services and electricity trading
Location: Czech Republic
Year of completion: 2026
The challenge: battery storage for the energy market
The investor required a battery energy storage system capable of actively participating in the electricity market. The system needed to provide grid balancing services while also supporting electricity trading.
To achieve this, the investor needed a single contractor capable of delivering the entire project, from civil works and grid connection to control systems and market integration.
What we delivered
PV SERVICE PLUS provided a complete turnkey battery energy storage solution, including:
Civil engineering works and foundations for the technology.
Transformer station and connection to the distribution grid.
Transportation and positioning of the battery storage equipment.
Complete BESS installation and electrical works.
Commissioning and trial operation.
Remote dispatch control via RTU (Remote Terminal Unit).
Integration into grid balancing services through an aggregator.
45 tonnes positioned in under 15 minutes
The battery container, weighing approximately 45 tonnes, represented one of the most demanding stages of the entire installation. The operation required precisely prepared foundations, an experienced crane operator and a well-coordinated ground crew.
The entire lifting operation, from the initial lift off the trailer to positioning the container on its foundations with millimetre precision, took less than 15 minutes.
From installation to operation
Positioning the battery container was only one stage of the project. The next steps included installing additional equipment, completing electrical cabling, connecting the system to the transformer station and configuring the control technology.
Following trial operation, we connected the system to remote dispatch control via RTU and integrated it into grid balancing services through an aggregator.
Today, the battery storage system provides grid balancing services and participates in electricity trading.
Why CATL technology?
We are not tied to a single manufacturer. For every project, we select the most suitable technology based on the required power output and storage capacity, operating strategy, grid connection conditions, control requirements and project economics.
For this particular project, CATL battery storage technology offered the most suitable solution. In other projects, we work with Huawei, FOX ESS and technologies from other manufacturers.
The result: battery storage ready for the energy market
The result is a fully operational battery energy storage system with a capacity of 5.644 MWh and a power output of 2.156 MW, integrated into grid balancing services and electricity trading.
The entire project, from civil engineering and technology installation to final commissioning, was delivered by a single contractor – PV SERVICE PLUS.
CATL 5.644 MWh project photo gallery
Planning your own battery energy storage project?
Are you considering a battery energy storage system for grid balancing services, electricity trading or your own industrial facility?
Get in touch with us. We will assess the grid connection conditions, recommend the most suitable technology and operating strategy, and deliver a turnkey battery energy storage solution tailored to your requirements.
Get in touch or leave us your contact details. We will be happy to answer your questions,
calculate potential savings and discuss the possibilities for your project, with no obligation.
Thanks to our photovoltaic power plants, we have saved
Our solutions are built on high-quality components from manufacturers we trust and have years of experience with.
Solar panels we use
They are characterized by high efficiency, long lifespan, and reliability even in demanding conditions.
Mounting structures we use
They are strong, weather-resistant, and designed for the long-term stability of solar panels.
Inverters we use
They ensure maximum efficiency in converting solar energy and stable operation of the entire system.
Batteries we use
They enable efficient energy storage and reliable electricity supply even without sunlight.
What our customers say
Thank you very much for the good cooperation in securing the PV system at our home. The money - the subsidy is in our account. You and the company PV Service Plus deserve great praise for the good and quality work.
I will be happy to recommend this company further. I wish you lots of luck and many orders, and may you continue to do well.
Iva, Ratíškovice
Implementation: PV system with a capacity of 5.52 kWp with battery storage of 10.65 kWh with Wallbox
Everything went according to agreement. Based on the agreed criteria, they prepared a price offer, and it remained unchanged throughout the entire implementation phase. Everyone was very helpful, and they managed to resolve small complications during the installation, including placing the panels on the roof according to our wishes.
After granting power of attorney, they handled the subsidy and paperwork. After almost a year of operation, everything works as it should, so far we are satisfied.
Miroslav, Mistřice
Implementation: PV system with a capacity of 7.36 kWp, 16 panels, GodWe ET 10 kW inverter, Pylontech 9.36 kWh batteries
Yesterday I found out that I received a subsidy from the State Environmental Fund of the Czech Republic covering 50% of the costs. This means that the construction of the PV system at my place can be considered successfully completed. The positives definitely outweighed any negatives, so I thank you very, very much. Please extend my thanks to everyone involved in the project.
I wish the company PV SERVICE PLUS success, growth, and that it builds its competitive advantage on expertise and flexibility.
Vladislav, Míkovice
Implementation: PV system with a capacity of 5.4 kWp, 12 panels, GoodWee ET 8 kW inverter, 7.1 kWh battery storage
Thank you for the exemplary communication from the administrative department of PVS, especially to Ms. Drahuška, for ensuring that everything went as agreed. We were negotiating the power plant installation for about a month.
The boys installed the panels in two days, and the following weekend the electricians came and connected the power plant. Thank you to them, and I wish you all wonderful days.
Roman, Hrušky
Implementation: PV system with a capacity of 6.72 kWp, 16 panels with a capacity of 420 kWp, with 10.65 kWh battery storage, Dyness T10 batteries (3 x 3.55 kWh + BMS), hybrid inverter GoodWe GW8K-ET
