Author
Emiliano Bellini
Emiliano joined pv magazine in March 2017. He has been reporting on solar and renewable energy since 2009. Emiliano is responsible for the daily news coverage on pv-magazine.com with a particular focus on European market. Emiliano also covers new technology, R&D, installations and company financial reporting. In its previous experience as a journalist, Emiliano has written about EdTech and new language technologies.
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Articles written by Emiliano Bellini
Elecnova launches all-in-one liquid-cooled ESS container for backup power, microgrids
Elecnova's 500 kW containerized energy storage system (ESS) pairs a modular four-cluster architecture with a static transfer switch capable of sub-20-millisecond grid switching, targeting critical backup and microgrid deployments.
Jun 03, 2026
Marstek debuts new plug-in battery series
Marstek Energy has launched its Venus residential plug-in battery series, comprising the 2 kWh Venus E Mini, 5 kWh Venus E Gen 4.0 and 10 kWh Venus E Max. The new battery familiy is suitable for applications ranging from balcony solar storage to whole-home energy management and backup power.
Hoymiles launches new hybrid residential battery series
Hoymiles has launched the HiBattery 4020 hybrid series for residential storage, including the PV-coupled 4020 X and AC-coupled 4020 AC designed for retrofit solar systems. Both models are modular and use LiFePO₄ cells with advanced safety features.
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Deye unveils 2.56 kWh hybrid battery for balcony, residential PV
The Chinese manufacturer said the system is designed for easy AC-coupled integration with existing PV systems and scalable expansion up to 7.5 kW three-phase output. The system purportedly delivers 800 W–2.5 kW AC output, supports up to 5.76 kW PV input with 96.5% efficiency.
New electrolyte tech enables stable operation of high-voltage sodium-ion batteries
U.S. researchers developed a meta-weakly solvating electrolyte that optimizes sodium-ion solvation structure, enabling faster ion transport, reduced side reactions, and improved interfacial stability in high-voltage sodium-ion batteries. This design significantly extends cycle life and outperforms conventional and localized high-concentration electrolytes by promoting more uniform and stable electrode–electrolyte interfaces.
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Bulgaria seeks to revive 864 MW Chaira pumped-storage hydropower plant
Supported by Toshiba, Bulgarian utility NEK is working to restart its 864 MW Chaira pumped-storage hydropower plant, the largest of its kind in Southeastern Europe. The facility has been offline since March 2022 following a turbine failure.
Titanium emerges as a vanadium alternative for redox flow batteries
A Japanese-Chinese team developed a titanium molten salt redox-flow battery using abundant titanium ions and molten salt electrolytes to enable high-voltage, fast, and stable grid-scale energy storage. The system demonstrates high efficiency of over 97%, strong cycling stability, and improved cost and scalability compared to vanadium-based batteries, with further optimization underway.
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