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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The Bluetti Pioneer Na sodium-ion portable power station shown from an angle, with a light blue exterior.
Bluetti debuts world’s first sodium-ion portable power station The Pioneer Na will be available globally from mid-October, 2025.
Tristan Rayner
Sep 08, 2025
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Cold climates are no obstacle for battery storage China-based battery storage specialist Poweroad is rapidly expanding its global footprint, deploying advanced battery energy storage systems (BESS) even in some of the world’s most extreme climates, where temperatures can plunge to -40°C.
Marija Maisch
Sep 04, 2025
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Freen launches scalable sodium-ion battery storage The Estonian home and commercial storage systems come in low- and high-voltage models. The high-voltage option can scale to ten modules, for 100.8 kWh, and a six-module, low-voltage version to 45 kWh.
Sandra Enkhardt
Sep 03, 2025
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Australia’s sodium-ion energy storage technology launches in Europe After witnessing strong demand for its sodium-ion technology at home, Australian company PowerCap is bringing its stationary storage products to the European market. The initial launch will cover Italy, Germany, and Spain, with further expansion on the cards. The starting price is expected to be around €500 per kilowatt-hour of storage capacity.
Marija Maisch
Aug 29, 2025
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German iron-salt battery business Voltstorage to close The company's principal technologist said the technology delivered but 'market adversity, investment cycles, and strategic decisions' prompted the move.
Sandra Enkhardt
Aug 29, 2025
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“We are in the process of establishing a sodium-ion battery cell pilot line by 2026″: Macsen Labs CEO Achal Agrawal, CEO of Macsen Labs, a chemical company making bold strides into battery materials, speaks to pv magazine about the potential of sodium-ion batteries for energy storage, their journey developing Prussian White cathodes, and plans to scale this technology.
Uma Gupta
Aug 25, 2025
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Energy storage finance fell 41%, year-to-June, despite rebound in project deals Political uncertainty and new trade tariffs have been cited by Mercom Capital Group as dampening activity.
Luis Ini
Aug 20, 2025
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Spain’s CIUDEN tests sodium-sulfur battery in conjunction with solar, hydrogen production The 5.8 MWh battery storage system is integrated with a 2.1 MW solar plant and two electrolyzers to produce green hydrogen.
Pilar Sanchez Molina
Aug 19, 2025
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South Korean researchers develop nanoscale zinc-anode coating to boost stability in water-based zinc-ion batteries A thin polymer coating improves zinc-ion battery lifespan by preventing dendrites and harmful side reactions.
Tristan Rayner
Aug 13, 2025

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