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Tariff uncertainty grips US battery development

1 day ago | ess-news.com | Jonathan Gifford

Tariff chaos reigns supreme in the development of the US stationary battery energy storage industry. Facing extraordinary tariffs of 145% on BESS imports into the country, developers will have to rely on inventory to realize projects. When these stockpiles are exhausted the outlook is unclear. Even the 145% tariff rate is uncertain. On April 14, the White House released a “Fact Sheet,” which appeared to clarify tariffs matters.
Felicitysolar showcasing FelicityESS products at 2025 Spring Canton Fair

1 week ago | ess-news.com | Tristan Rayner
REPT Battero launches 392 Ah cell, 6.26 MWh storage system

1 week ago | ess-news.com | Tristan Rayner
UL battery safety standard updated for new storage chemistries

1 week ago | ess-news.com | Max Hall |Marija Maisch |Carrie Hampel |Nadine Bourgeois

US-based safety certification body UL has updated its test method for evaluating the risk of thermal runaway in battery energy storage systems (BESS). Updates to the fifth edition of UL’s ANSI/CAN/UL 9540A standard include clearer criteria for determining cell-to-cell propagation of thermal runaway, a chemical reaction which causes rapid temperature and pressure rises in battery cells, leading to the risk of fire and explosion.
'Without pumped hydro, Spain should install maximum 50 GW of solar'

1 week ago | ess-news.com | Max Hall |Pilar Molina |Marija Maisch |Anne Fischer

Large-scale, long-duration energy storage (LDES) facilities such as pumped hydro sites will be critical to support the ideal amount of solar generation capacity in Spain, as calculated by Madrid-based campaign group Ecologists in Action. The environmental group has calculated the volume of clean energy generation capacity that would be required for a 100% renewables grid by 2030, using various scenarios.
Tracking the carbon intensity of battery electricity

1 week ago | ess-news.com | Max Hall |Phoebe Skok |Marija Maisch |Carrie Hampel

California-based climate data and analytics company WattCarbon says its new Aristotle, AI-powered carbon measurement platform can record every watt-hour entering and exiting a battery, and its source. With the data translated into an emissions profile for the battery – based on the carbon intensity of grid electricity at time of dispatch – time-based accounting could enable users of the battery’s electricity to meet clean energy goals.
Evlo deploys grid-scale batteries in American Samoa

1 week ago | ess-news.com | Max Hall |Ryan Kennedy |Marija Maisch

Hydro-Québec subsidiary Evlo Energy Storage Inc says it has commissioned the first of three planned grid-scale energy storage projects in American Samoa. The first project adds 4 MW/8 MWh, two-hour-duration energy storage to the local grid in Tutuila. The company collaborated with Eastern Power Solutions, a solar energy service provider, to develop the project, which will be co-located with 20 MW of solar capacity.
BW ESS, Zelos partner on 1.5 GW of large-scale battery projects in Germany

1 week ago | ess-news.com | Tristan Rayner |Marija Maisch |Carrie Hampel |David Carroll

Zurich-based BESS owner-operator BW ESS has another new partnership in Germany, joining Berlin-based energy storage developer Zelos Energy Developments to enact plans to co-develop up to 1.5 GW of projects in the north and east of Germany. The targets will be within the region operated by 50 Hertz, a transmission system operator (TSO) that operates 220 kV and 380 kV networks in the north and east of the country.
EcoFlow Announces Strategic Partnership with Midsummer to Deliver Smarter, Greener Home Energy Solutions

1 week ago | ess-news.com | Marija Maisch |Anne Fischer |Valerie Thompson |Ryan Kennedy

Through this partnership, Midsummer will supply the latest residential products from the EcoFlow Home Energy Ecosystem – including the PowerOcean series and PowerPulse EV charger – to its extensive installer network across the UK. EcoFlow’s PowerOcean Series integrates seamlessly with solar panels, inverters and home energy consumption patterns, offering real-time monitoring and control.
Hithium unveils 587 Ah cell and 6.25MWh storage system

1 week ago | ess-news.com | Marija Maisch |Vincent Shaw

Chinese battery energy storage specialist Hithium presented its new ∞Cell 587Ah energy storage cell and the corresponding ∞Power 6.25MWh 2-hour storage system at the 13th Energy Storage International Conference and Expo (ESIE2025) in Beijing last week. The manufacturer also announced that the ∞Cell had begun global sampling in April 2025, with the ∞Power system slated for mass production in the second half of the year.