
Liquid flow energy storage products are advanced systems designed for energy management, incorporating the following core aspects: 1) **Utilization of liquid electrolytes, allowing for scalability and flexibility, 2) Separation of energy and power, enhancing operational efficiency, 3) Long operational lifespan, which reduces periodic replacement costs, 4) Sustainability, as many designs adhere to environmentally friendly principles. [pdf]

Prominent systems include pumped hydro storage, which involves using gravity to store energy in water reservoirs; 3. battery storage solutions, offering rapid response times and modular design; 4. compressed air energy storage that utilizes underground caverns for energy storage; 5. flywheel systems, which provide instant power through rotational energy; 6. thermal energy storage, where heat is captured for later use; 7. these technologies significantly contribute to the efficient and reliable operation of power stations, facilitating the integration of renewable sources into energy systems. [pdf]

DTEK, Ukraine’s largest private energy company, has selected Fluence Energy B.V., a subsidiary of Fluence Energy, Inc. (NASDAQ: FLNC) (“Fluence”), a global market leader delivering intelligent energy storage, operational services, and asset optimization software, to supply Ukraine’s first large-scale battery-based energy storage portfolio. [pdf]
Sept. 10, 2025. (Bohdan Nazarenko/DTEK) Ukraine’s biggest private energy firm, DTEK, has launched a major battery storage facility that will bring power to hundreds of thousands of homes and strengthen the grid ahead of expected Russian attacks this winter, the company said.
The €140 million total investment aims to enhance power grid stability, bolstering Ukraine’s energy security and independence. The project will be the biggest operational energy storage portfolio in Eastern Europe at the time of commissioning.
Together, they will store up to 400 MWh of electricity – enough to supply two hours of power to 600,000 homes (equivalent to roughly half the households in Kyiv).
"Despite the war, we invest in Ukraine’s recovery and growth. Our energy sector, having withstood countless Russian attacks, now gains new momentum," owner of DTEK and Ukraine’s richest man, Rinat Akhmetov, said in a press release.
The batteries are spread out across six undisclosed locations in Ukraine, which helps de-risk the projects from Russian attacks compared to a centralized system, Julian Jansen, managing director covering southern and eastern Europe at Fluence, said during the briefing.
Dominic is the business reporter for the Kyiv Independent. He has written for a number of publications including the Financial Times, bne IntelliNews, Radio Free Europe/Liberty, Euronews and New Eastern Europe. Previously, Dominic worked with StopFake as a disinformation expert, debunking Russian fake news in Europe.

Container Battery Energy Storage systems connect to existing power infrastructure through professionally installed cabling and protection devices, with certified electricians ensuring all connections meet electrical codes and safety standards while properly matching the Lithium Ion Battery Storage Container voltage and current specifications for optimal performance and safety. [pdf]
A Containerized Energy-Storage System, or CESS, is an innovative energy storage solution packaged within a modular, transportable container. It serves as a rechargeable battery system capable of storing large amounts of energy generated from renewable sources like wind or solar power, as well as from the grid during low-demand periods.
Each container unit is a self-contained energy storage system, but they can be combined to increase capacity. This means that as your energy demands grow, you can incrementally expand your CESS by adding more container units, offering a scalable solution that grows with your needs.
The Storage Container outputs based on the 'Last in, first out' (LIFO) method, which means it will always attempt to put the last item in the last slot onto the output belt first if there is any connected output belt. This can only be observable if it stores more than one type of item. Containers can be easily stacked on top of each other.
This energy, stored as direct current (DC) electricity, is directed to an inverter, which transforms it into alternating current (AC) electricity. AC is the standard form of electricity used by most electrical appliances and devices, making the inverter a crucial link in making the stored energy usable.
We are committed to excellence in solar container and energy storage solutions.
With complete control over our manufacturing process, we ensure the highest quality standards in every solar container and BESS system we deliver.