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PV SERVICE PLUS has built one of the largest battery storage systems in Slovakia
PV SERVICE PLUS s.r.o., a renowned player in the field of renewable energy, has built one of the largest battery storage systems in Slovakia.
PV SERVICE PLUS s.r.o. entered into a strategic agreement for the delivery and construction of a Huawei BESS container battery storage system with a capacity of 20 MWh. This project represented a major breakthrough in the Slovak and Czech markets, as it became one of the largest storage systems of its kind in the country.
BESS: The Future of Energy Storage
The technology solution was supplied by Huawei Digital Czech Republic, which provided the proven Huawei BESS system. The technology was designed to ensure high capacity, flexibility and safety in energy storage, which was essential for stabilising energy grids and supporting the use of renewable sources.
PV SERVICE PLUS: An Experienced Partner for Large-Scale Projects
The implementation company already had unique experience in this field. As one of the first companies in the Czech Republic and Slovakia, it successfully completed and operated a 4 MWh battery storage system in Hodonín. Thanks to this expertise, PV SERVICE PLUS also became the only official service partner of Huawei.
Being selected as the contractor for such a prestigious project reflected not only the company’s technical competence and experience, but also its reputation as a trustworthy partner.
“The fact that the investor chose us confirmed that we are renowned professionals who can be relied on. We are grateful for the trust shown and believe that this project will inspire other energy companies in Czechia and Slovakia,”said PV SERVICE PLUS representative Eduard Michna
We also hope that this step has opened the door to further cooperation and that other companies in the energy sector will follow this example and approach our company as a leading contractor with proven experience.
A Key Step for the Future of Renewable Energy
The project changed the perception of Huawei battery storage systems on both the Czech and Slovak markets. Its successful implementation not only supported the development of renewable energy sources, but also contributed to improving the stability of the electricity grid, which was essential for the transition to more sustainable energy.
With this step, the investor confirmed its long-term strategy of innovation and support for sustainable energy. This project represented an important milestone not only for PV SERVICE PLUS, but also for the entire energy sector. After completion, it became a model for similar initiatives in the field of energy storage.
The Strategic Importance of Battery Storage for the Energy Sector
The Huawei BESS battery storage project with a capacity of 20 MWh represented a significant step towards strengthening the sustainability and efficiency of the modern energy grid. This system played a key role not only in storing surplus energy from renewable sources, but also in ensuring the stability of the transmission system.
BESS battery storage systems (Battery Energy Storage System) enable:
Balancing grid fluctuations: With the growing share of renewable sources such as solar and wind power plants, the ability to respond flexibly to fluctuations in energy production and consumption was crucial. The storage system stabilised the grid in real time and minimised the risk of outages.
Support during peak load: During periods of high energy demand, for example during summer heatwaves or winter frosts, stored energy could immediately cover increased consumption.
Integration of renewable sources: The storage system made it possible to efficiently store surplus energy from the sun or wind that would otherwise not be used and ensure its distribution when it was needed most.
Reduced dependence on fossil fuels: The ability to store and use clean energy helped limit the need to activate backup fossil-fuel power plants, thereby contributing to lower greenhouse gas emissions.
Battery Storage as Part of Modern Energy
This project moved Slovakia and the Czech Republic closer to the energy transformation. The development of systems such as BESS has enabled the creation of decentralised and resilient energy infrastructure. In addition to directly supporting the grid, these storage systems also benefited local communities and industry by offering:
Energy security: Minimising the risk of outages and ensuring reliable access to energy.
A transition towards energy self-sufficiency: In the long term, this type of technology can support the development of microgrids and smaller autonomous energy systems.
“Storage systems that combine innovation, sustainability and technological reliability are an essential step in the transformation of our energy sector. This project is an example of how advanced technologies can serve not only industry, but society as a whole,”added PV SERVICE PLUS representative Eduard Michna
The Huawei BESS battery storage project implemented by PV SERVICE PLUS s.r.o. was therefore not only a technical investment, but also an ecological and strategic one, supporting energy independence and contributing to the goals of reducing emissions and sustainable development.
Construction of one of the largest battery storage systems in Slovakia.
The project represents a significant milestone in modern energy and confirms PV SERVICE PLUS’s ability to implement the most technologically demanding Battery Energy Storage Systems (BESS) in Central Europe.
Project Overview
PV SERVICE PLUS implemented one of the largest battery storage systems in Slovakia for ZSE. The standalone Battery Energy Storage System was built between the municipalities of Nižná and Veľké Kostoľany, near the Jaslovské Bohunice energy hub.
20 MW
Maximum system output
20 MWh
Battery storage capacity
110 kV
Direct connection to the distribution grid
100 MW
Possibility of future expansion
Technical Parameters
Investor
ZSE
Location
Nižná – Veľké Kostoľany
Project type
Standalone Battery Energy Storage System
Connection
110 kV
Technology supplier
Huawei Digital Power
Battery containers
10× Huawei LUNA2000-2.0MWh
Capacity
20 MWh
Output
20 MW
PCS
100× Huawei LUNA2000-200KTL-H1
Transformers
4× Huawei JUPITER + main HV transformer
Future expansion
100 MW / 100 MWh
Investor Assignment
The project was designed with the aim of:
storing surplus energy from renewable sources
increasing the stability of the distribution system
providing flexibility to the power grid
balancing differences between production and consumption
preparing infrastructure for the energy sector of the future
Proposed Solution
The core of the system consists of ten Huawei LUNA2000-2.0MWh Series battery containers. The technology uses one hundred Huawei LUNA2000-200KTL-H1 power conversion systems, four Huawei JUPITER technological transformers and a main HV transformer connected to the 110 kV distribution grid.
110 kV distribution grid
↓
Main HV transformer
↓
4× Huawei JUPITER
↓
100× Huawei LUNA2000-200KTL-H1
↓
10× Huawei LUNA2000-2.0MWh
↓
20 MW • 20 MWh
Role of PV SERVICE PLUS
Technology installation
Complete installation of battery containers, transformers and power conversion systems.
Electrical installation
Complete interconnection of all technological units.
Commissioning
Functional tests, system commissioning and final synchronisation.
Technical Challenges
The project required handling almost thirty-tonne containers, coordinating the installation of 100 power conversion systems and five transformer stations. All technologies had to operate as one synchronised unit with maximum reliability.
Project Benefits
Higher grid stability
Immediate response to changes in energy production and consumption.
Energy accumulation
Efficient storage of surplus energy from renewable sources.
Energy security
Support for the reliability of the distribution system.
Future expansion
Architecture prepared for up to 100 MW and 100 MWh.
Result of the Implementation
The BESS Nižná project confirms PV SERVICE PLUS’s ability to deliver state-of-the-art large-capacity battery storage systems from design and installation through to successful commissioning. The experience gained from this implementation is now used by the company in further projects for electricity distributors, industrial companies and the public sector.
Get in touch with us or leave your contact details. We will answer all your questions without obligation, calculate your savings and discuss the possibilities of implementation.
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
