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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Latest News

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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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Indian university opens lithium- and sodium-ion battery research center Academics at the new site are exploring the use of glass-polymer composite electrolytes and the development of paper-based batteries, among its lines of research.
Uma Gupta
Jun 06, 2025
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How organic flow batteries could erase the need for critical-mineral dependency Vanadium flow and lithium-ion batteries both require materials described as critical by the US Department of Energy (DOE).
Eugene Beh
Jun 05, 2025
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Digital twins tackle performance by uncovering battery blind spots A case study shows how a digital twin can uncover insights into battery energy storage system (BESS) performance
Tristan Rayner
May 27, 2025
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Optimizing Carnot batteries for renewables storage Based on the the heat pump-organic rankine cycle, scientists in Portugal have created six different models of Carnot batteries for stationary storage. They investigated 16 different combinations of working fluids and created a multi-objective optimization for the best candidate.
Lior Kahana
May 26, 2025
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Swiss developer breaks ground on 1.6 GWh redox flow storage project The redox flow project has enormous storage capacity, expected to be finished in mid-2028.
Sandra Enkhardt
May 23, 2025
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Biwatt launches commercial sodium-ion energy storage product The manufacturer has unveiled a 155 kWh sodium-ion battery energy storage system for commercial and industrial (C&I) customers.
Marian Willuhn
May 15, 2025
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Organic flow batteries launch in US data center deployment Prometheus Hyperscale and XL Batteries partner to roll out long-duration, lithium-free energy storage for a Wyoming data center.
Phoebe Skok
May 15, 2025
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Flow battery startup VFlowTEch banks $20.5M as ramp up continues The Singaporean company is working on long duration storage and received wide backing from a variety of investors.
Tristan Rayner
May 14, 2025
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Battery and battery tech developments in brief from the floor of Intersolar 2025 Europe’s largest solar power event filled 18 very large halls in Munich, and new launches ranged from balcony solar to cow poop innovations.
Tristan Rayner, John Fitzgerald Weaver
May 12, 2025

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