Technologies
Technologies pv magazine
Technologies pv magazine

Energy storage systems come in many forms, leveraging different technology types. A class of electrochemical storage, lithium-ion batteries have established themselves as the industry standard.

But there are many new technologies vying for their market share.

Sodium-ion batteries are widely considered a sustainable and resource-saving answer to future energy storage, while flow batteries offer a viable alternative in long-duration storage applications.
However, the path to commercialization is not a straightforward one.

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ESS Tech to add 8.5 GWh of US-made sodium‑ion batteries to its portfolio ESS Tech is complementing its iron flow storage offering, which is engeeneered for the 8–24 hour long-duration segment, with sodium-ion battery products aimed at short and medium-duration applications.
Marija Maisch
Apr 30, 2026
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New partnership advances sodium-ion manufacturing in Spain In a week marked by the largest sodium-ion battery order to date, widely seen as a watershed moment for the technology’s commercialization at scale, one of Europe’s emerging players, Spain’s Bihar Batteries, is strengthening the outlook for European-made sodium-ion batteries.
Marija Maisch
Apr 29, 2026
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CATL secures world’s largest sodium-ion battery order with Hyperstrong The two companies announced a 60 GWh supply agreement on Monday, marking a pivotal step in the commercialization of sodium-ion battery technology.
Marija Maisch
Apr 27, 2026
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Control, not capacity, could be the next driver of US residential storage investment Investors are shifting focus from deployment growth to platforms that can orchestrate and monetize battery fleets.
Phoebe Skok
Apr 17, 2026
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Volkswagen announces vehicle-to-grid offering in Germany, soon wider Europe Registration will be possible from June, and the service will then be available from the fourth quarter under VW's Elli brand. The integrated offer consists of an electric vehicle, app, electricity tariff, smart meter, wallbox, and installation.
Sandra Enkhardt
Apr 17, 2026
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Researchers make significant advancement into thermal runaway-free sodium-ion batteries The development of a Polymerizable Non-flammable Electrolyte appears to have helped sodium-ion batteries towards a eureka moment for safety.
Tristan Rayner
Apr 10, 2026
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Netherlands: TenneT and GES ink landmark deal for 800 MWh “congestion mitigator” battery Dutch grid operator TenneT has signed a capacity control contract with Green Energy Storage (GES) for a 200 MW / 800 MWh battery, marking a shift in how the Netherlands manages its severely congested high-voltage grid.
Tristan Rayner
Apr 10, 2026

All Technologies news

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Prototype magnesium battery operates at room temperature in breakthrough New research reopens the question around magnesium-based battery viability at room temperatures.
Tristan Rayner
Oct 14, 2025
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Battery storage boosts viability of south-facing solar facades Researchers in Germany have examined how battery storage could help façade PV systems move beyond their niche market by 2030. Their findings show that a large majority of south-oriented façades in Europe could be equipped with vertical solar arrays combined with batteries.
Emiliano Bellini
Oct 13, 2025
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Shell brings data-centre cooling tech to batteries in world-first immersion storage system According to the partners, the new design reduces auxiliary energy consumption and improves temperature uniformity across cells.
Vincent Shaw
Oct 08, 2025
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Operational issues hit returns in one in five battery storage projects, report finds A recent report from battery intelligence firm Accure reveals that while most battery energy storage systems (BESS) operate reliably, nearly 19% of projects experience reduced returns due to technical issues and unplanned downtime.
Marija Maisch
Oct 07, 2025
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NREL researchers address safety implications of next-generation battery technologies Report says new evaluation methods, including AI, will help make future batteries safer.
Michael Puttré
Oct 06, 2025
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Plan-B Net Zero combines battery storage and hydrogen storage in new concept The Swiss startup presented the battery plus hydrogen idea to a Symposium this week.
Tristan Rayner
Oct 03, 2025
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European project to use grid forming loads to stabilize power networks The Universitat Politècnica de Catalunya – BarcelonaTech (UPC) is leading a project that proposes using grid-forming loads, which includes storage, to provide maximum flexibility and to enable future electricity systems with very high renewable energy content.
Pilar Sanchez Molina
Sep 30, 2025
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Fourth Power makes the case for thermal storage as it raises $20 million It's not an easy life in thermal energy storage, but long-duration technology is important. Fourth Power continues to show promise, and CEO Arvin Ganesan discusses where and why it will prove out.
Tristan Rayner
Sep 29, 2025
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US startup unveils zinc-polyiodid redox flow battery with energy density of 320 Wh/L BESSt announced that its new redox flow battery technology delivers 20 times the energy density of conventional vanadium flow storage systems. The battery is based on a zinc–polyiodide redox flow chemistry developed by the Pacific Northwest National Laboratory.
Emiliano Bellini
Sep 29, 2025

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