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“Grid-forming technology is no longer experimental – it’s here and working”
In grids increasingly dominated by renewables, grid-forming technology is emerging as critical tool for maintaining stability and ensuring reliable power system operation. In this interview with ESS News, Rui Sun, Sungrow’s Deputy General Manager-Grid Technology Center, explains how grid-forming works, why it matters, and where the technology is already proving its value. He elaborates on technical challenges, regulatory gaps, and why grid-forming could soon become the new industry standard.
Jul 07, 2025

WHES releases new C&I storage system series
WHES has launched a new series of commercial and industrial (C&I) storage systems with integrated hybrid inverters, offering capacities from 57 kWh to 100 kWh and PV input up to 96 kW. The China-based manufacturer claims the systems support 200% PV overloading.
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ZGR battery system kept one Spanish village powered during major Iberian blackout
A 160 kW / 250 kWh standalone battery system installed by Spanish manufacturer ZGR (Zigor Corporación) ensured uninterrupted power for the village of San Vicente del Monte during a major blackout that affected the Iberian Peninsula on 28 April 2025. The system, connected to the low-voltage (400 V) grid, supplied electricity to the entire village for more than five hours.
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EcoFlow reports storage surge as Germany reaches 1 million balcony power systems registered
EcoFlow reveals just how much storage is being added into the plug-in balcony solar system ecosystem in Germany. ESS News spoke with Arne Herkelmann, regional product manager at EcoFlow, about the milestone, the critical data shaping the market, and the hurdles that remain in Germany and wider Europe.
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Sungrow introduces PowerTitan 3.0 BESS based on 684 Ah cell, fully-liquid cooled silicon carbide PCS
The PowerTitan 3.0 Energy Storage System Platform, available in 10-feet Flex (capacity 3.45 MWh), 20-feet Class (capacity 6.9 MWh), and 30-feet Plus versions (capacity 12.5 MWh), supports durations of 2-12 hours.
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