THdG Ltd.’s verifiable reference works are the most convincing proof of our expertise and reliability.
The projects we have successfully implemented demonstrate with concrete results that our clients are satisfied with our work and that we are capable of achieving the set objectives. These real experiences and positive feedback form the foundation of our new partners’ trust, as they can see the high standard and effectiveness with which we work.
THdG ELECTRICITY STORAGE REFERENCES
COMPLETED ELECTRICITY STORAGE PROJECTS
Total performance of our completed projects
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ONGOING PROJECTS
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E.ON MATESz PROJECT
In Hungary, installed solar capacity reached 7,550 MW by early 2025 and is expected to grow to 12,000 MW by 2030. As part of a project launched in 2022 with 100% financing from the Modernization Fund and state subsidies, the E.ON Hungária Group consortium installed solar panels and battery energy storage systems at four locations with a total capacity of 25 MW/12 MWh, which will be fully completed by the end of 2025. The system uses a three-level energy management system (EMS), which will be developed for storage devices. One of the main examples of the MATESz project is the practical application of large-capacity storage devices connected to the medium-voltage grid, where an adaptive control mechanism based on real data enables the efficient operation of the storage devices and the optimization of solar panel production.
We are proud that THdG also participated in this project.
IPOLYTÖLGYES
SOLAR POWER PLANT
The solar power plant in Ipolytölgyes and its associated battery storage facility provide a unique technical solution to the problems of domestic industrial power supply. The facility is independent of the public power grid and provides a large proportion of the electricity needs of an automotive parts manufacturer from its own production. A key objective of the development was to ensure that the system had as little impact as possible on the medium-voltage distribution network. To this end, a rapidly and precisely controllable energy storage system and automation were installed, capable of compensating for production fluctuations caused by weather conditions. The equipment can limit power fluctuations affecting the grid in a maximum of four minutes.
CHARGING ELECTRIC CARS
AT LAKE VELENCE
A special green energy development has been implemented on one of the streets of Sukoró: from now on, anyone can use the electricity generated by a solar panel system on private property to charge their electric car. The 101-kilowatt fast charger, located near Lake Velence, has been put into operation and is available to all electric car users as part of the MVM Mobiliti network. The technological implementation was provided by THdG Kft.
E.ON ENERGY COMMUNITY
As part of the project, we installed and commissioned five 50 kW/160 kWh battery systems at three different locations.
CHALLENGE: We had to overcome significant challenges during the project, as all three locations had different terrain and environmental conditions. Integrating the energy storage systems into the existing energy management IT system was an important part of the task.
SOLUTION: Our team of experts carefully selected the most suitable battery system that was able to meet the various environmental and technical requirements. Before installation, we thoroughly assessed the site conditions and developed a detailed schedule for the professional installation of the systems. After commissioning, we handed over the finished systems to the customer, ensuring that all components were working smoothly. In addition, we provided full support for system integration and were available at all times for fine-tuning after installation.
LAJOSMIZSE
INDUSTRIAL ELECTRICITY STORAGE
We are supplying, installing and integrating a 1000 kW/2542 kWh industrial electricity storage and UPS system (1200 kVA – 7 minutes of power supply) for a private customer in Lajosmizse. The purpose of the equipment to be installed is to minimize economic losses resulting from power outages.
ZalaZONE TENDER
We had the honor of participating in the development of ZalaZONE InnoTech Nonprofit Kft.’s unique automotive testing environment. The goal of the project was to implement an electric car charging system connected to an energy storage device and solar panels.
CHALLENGE: The goal was to ensure compatibility between the three different products so that the system components would work together and integrate seamlessly.
SOLUTION: In response to these challenges, we initiated a comprehensive design and development process. Our experts carefully selected the most suitable products, including a 100 kW inverter, a 100 kWh battery bank, an 80 kW DC charger, and a 10 kWp solar panel system. These products are not only compatible, but also easy and quick to install. After installing the system, we provided support to our partner for further developments.
E.ON FLEX.ON
As part of E.ON Hungária’s FLEX.ON project, we delivered and installed five 50 kW/160 kWh electricity storage systems at various E.ON sites, which are integrated into an aggregator and participate in MAVIR’s system-level services on the aFRR regulatory market.
DÚZS energy storage system
In order to maintain the stability of the E.ON Hungária group’s energy network, we were commissioned to build a battery-based mobile energy storage system in the town of Dúzs. The system is designed to store surplus energy generated by renewable energy sources in the area and feed it back into the electricity grid when necessary.
CHALLENGE: To design and build a complex energy storage unit according to strict specifications and within a deadline, in an environment where the relevant regulations are not yet fully developed.
SOLUTION: We selected the most ideal partner for the task, organized the import of the battery energy storage system, installed it with the help of our team, and commissioned the system within the promised deadline.
100 RESIDENTIAL
ENERGY STORAGE UNITS
E.ON Power Grid Company was looking for a residential energy storage unit capable of following external control signals and receiving commands and settings (updates) from higher-level energy management systems in order to optimize the use of distributed flexibility resources. Additional key functions: consumption balancing, voltage support, support for instructions from the aggregator.
CHALLENGE: To develop a device that meets the technical specifications in terms of both functionality and control execution.
SOLUTION: During the project, 100 residential battery energy storage systems with 8kW inverters and 14.21kWh storage capacity were delivered. Thanks to our wide customer base, we were able to complete the order on time, meeting both economic and technical requirements.
ZalaZONE TENDER
E.ON MATESz PROJECT
In Hungary, installed solar capacity reached 7,550 MW by early 2025 and is expected to grow to 12,000 MW by 2030. As part of a project launched in 2022 with 100% financing from the Modernization Fund and state subsidies, the E.ON Hungária Group consortium installed solar panels and battery energy storage systems at four locations with a total capacity of 25 MW/12 MWh, which will be fully completed by the end of 2025. The system uses a three-level energy management system (EMS), which will be developed for storage devices. One of the main examples of the MATESz project is the practical application of large-capacity storage devices connected to the medium-voltage grid, where an adaptive control mechanism based on real data enables the efficient operation of the storage devices and the optimization of solar panel production.
We are proud that THdG also participated in this project.
IPOLYTÖLGYES
SOLAR POWER PLANT
The solar power plant in Ipolytölgyes and its associated battery storage facility provide a unique technical solution to the problems of domestic industrial power supply. The facility is independent of the public power grid and provides a large proportion of the electricity needs of an automotive parts manufacturer from its own production. A key objective of the development was to ensure that the system had as little impact as possible on the medium-voltage distribution network. To this end, a rapidly and precisely controllable energy storage system and automation were installed, capable of compensating for production fluctuations caused by weather conditions. The equipment can limit power fluctuations affecting the grid in a maximum of four minutes.
CHARGING ELECTRIC CARS
AT LAKE VELENCE
A special green energy development has been implemented on one of the streets of Sukoró: from now on, anyone can use the electricity generated by a solar panel system on private property to charge their electric car. The 101-kilowatt fast charger, located near Lake Velence, has been put into operation and is available to all electric car users as part of the MVM Mobiliti network. The technological implementation was provided by THdG Kft.
E.ON
ENERGY COMMUNITY
As part of the project, we installed and commissioned five 50 kW/160 kWh battery systems at three different locations.
CHALLENGE: We had to overcome significant challenges during the project, as all three locations had different terrain and environmental conditions. Integrating the energy storage systems into the existing energy management IT system was an important part of the task.
SOLUTION: Our team of experts carefully selected the most suitable battery system that was able to meet the various environmental and technical requirements. Before installation, we thoroughly assessed the site conditions and developed a detailed schedule for the professional installation of the systems. After commissioning, we handed over the finished systems to the customer, ensuring that all components were working smoothly. In addition, we provided full support for system integration and were available at all times for fine-tuning after installation.
LAJOSMIZSE INDUSTRIAL ELECTRICITY STORAGE
We are supplying, installing and integrating a 1000 kW/2542 kWh industrial electricity storage and UPS system (1200 kVA – 7 minutes of power supply) for a private customer in Lajosmizse. The purpose of the equipment to be installed is to minimize economic losses resulting from power outages.
ZalaZONE tender
We had the honor of participating in the development of ZalaZONE InnoTech Nonprofit Kft.’s unique automotive testing environment. The goal of the project was to implement an electric car charging system connected to an energy storage device and solar panels.
CHALLENGE: The goal was to ensure compatibility between the three different products so that the system components would work together and integrate seamlessly.
SOLUTION: In response to these challenges, we initiated a comprehensive design and development process. Our experts carefully selected the most suitable products, including a 100 kW inverter, a 100 kWh battery bank, an 80 kW DC charger, and a 10 kWp solar panel system. These products are not only compatible, but also easy and quick to install. After installing the system, we provided support to our partner for further developments.
E.ON
FLEX.ON
As part of E.ON Hungária’s FLEX.ON project, we delivered and installed five 50 kW/160 kWh electricity storage systems at various E.ON sites, which are integrated into an aggregator and participate in MAVIR’s system-level services on the aFRR regulatory market.
DÚZS
energy storage system
In order to maintain the stability of the E.ON Hungária group’s energy network, we were commissioned to build a battery-based mobile energy storage system in the town of Dúzs. The system is designed to store surplus energy generated by renewable energy sources in the area and feed it back into the electricity grid when necessary.
CHALLENGE: To design and build a complex energy storage unit according to strict specifications and within a deadline, in an environment where the relevant regulations are not yet fully developed.
SOLUTION: We selected the most ideal partner for the task, organized the import of the battery energy storage system, installed it with the help of our team, and commissioned the system within the promised deadline.
100 RESIDENTIAL
ENERGY STORAGE UNITS
E.ON Power Grid Company was looking for a residential energy storage unit capable of following external control signals and receiving commands and settings (updates) from higher-level energy management systems in order to optimize the use of distributed flexibility resources. Additional key functions: consumption balancing, voltage support, support for instructions from the aggregator.
CHALLENGE: To develop a device that meets the technical specifications in terms of both functionality and control execution.
SOLUTION: During the project, 100 residential battery energy storage systems with 8kW inverters and 14.21kWh storage capacity were delivered. Thanks to our wide customer base, we were able to complete the order on time, meeting both economic and technical requirements.