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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Alsym and Juniper to deploy 500 MWh of US sodium-ion battery storage Strategic agreement will see California-based renewables developer ramp up sodium-ion battery deployment. Deal follows Alsym Energy entering 8.5 GWh partnership with iron flow battery business ESS.
Matthew Lynas
May 12, 2026
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SoftBank to make next-gen zinc-halogen battery cells in Japan for AI data centers SoftBank's mobile arm is gearing up to scale the intriguing zinc-halogen battery cell chemistry to 1 GWh annual production.
Tristan Rayner
May 11, 2026
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BloombergNEF confirms energy storage has reached the 100 GW era A record year, and an incredibly strong outlook for the energy storage sector.
Tristan Rayner
May 11, 2026
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New electrolyte tech enables stable operation of high-voltage sodium-ion batteries U.S. researchers developed a meta-weakly solvating electrolyte that optimizes sodium-ion solvation structure, enabling faster ion transport, reduced side reactions, and improved interfacial stability in high-voltage sodium-ion batteries. This design significantly extends cycle life and outperforms conventional and localized high-concentration electrolytes by promoting more uniform and stable electrode–electrolyte interfaces.
Emiliano Bellini
May 08, 2026
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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

All Technologies news

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New wave of funding powers US battery tech and projects XL Batteries has secured backing to commercialize flow battery systems which use an organic electrolyte, rather than vanadium, and two utility-scale developers have landed extensive credit lines.
Max Hall
Sep 19, 2025
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While it’s easy to announce a battery gigafactory, it’s much harder to build one America’s battery factory build-out hinges on experienced operating teams.
Phoebe Skok
Sep 15, 2025
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Storage investment: Standalone batteries changing the market Redelfi has placed standalone battery energy storage systems (BESS) at the center of its development model, abandoning the renewable energy community (CER) business. pv magazine Italia discussed that decision – and Redelfi's market vision – with a company that wants 1 GW of capacity greenlit by next year.
Lara Morandotti
Sep 10, 2025
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Polymer batteries could help protect the energy storage industry from copper tariffs As tariffs push copper costs higher, one startup thinks additive manufacturing could free batteries from the metal altogether.
Phoebe Skok
Sep 09, 2025
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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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