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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Fraunhofer IEE calls for “grid-forming readiness” in distribution networks and BESS A position paper from the Fraunhofer IEE proposes preparing large battery storage systems in the medium-voltage grid for grid-forming functions at an early stage. The "Grid-Forming Readiness" concept aims to close the regulatory gap between current planning and operation and future, as yet unknown, requirements and demands for grid-forming functions.
Marian Willuhn
Feb 26, 2026
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Sodium-ion storage system for commercial operators from Austria’s Salzstrom The new "SALT 110" battery storage system from the Vienna-based company has a usable capacity of up to 110 kilowatt-hours. The first systems are scheduled to be installed at customer sites in Germany and Austria at the beginning of March.
Sandra Enkhardt
Feb 26, 2026
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30 GWh, 100-hour duration: Google to deploy world’s largest iron-air battery for Minnesota data center The 300 MW / 30 GWh multi-day storage system from Form Energy will be paired with 1.6 GW of new renewables to facilitate Google’s 24/7 carbon-free energy goals.
Ryan Kennedy
Feb 25, 2026
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Sodium-ion batteries key to EU competitive edge, says EESC President European Economic and Social Committee (EESC) to put sodium batteries at the center of its EU industrial strategy work, calls for swift action. Opinions, stakeholder debates and a dedicated study planned.
Matthew Lynas
Feb 24, 2026
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High temperature sodium-zinc batteries: Researchers use X-rays to find reasons for capacity loss Sodium-zinc molten-salt batteries operate at around 600 degrees Celsius and are considered highly promising for stationary energy storage, thanks to their abundantly available and low-cost raw materials. But persistent capacity losses have held the technology back. Helmholtz researchers have now used operando X-ray imaging to see, for the first time, exactly why.
Jochen Siemer
Feb 23, 2026
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AVL partners with Sumitomo in bid for Western Australia’s 500 MWh vanadium battery project Perth-headquartered resources and technology company Australian Vanadium Limited’s subsidiary VSUN Energy will partner with Japanese manufacturer Sumitomo Electric Industries in its bid to develop Western Australia’s planned 500 MWh Kalgoorlie vanadium battery project.
David Carroll
Feb 23, 2026
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BESS in Brazil: Feasibility of three strategic approaches Based on real data from the National Interconnected System between 2024 and 2025, the study evaluates the technical, economic, and regulatory performance of batteries operating as autonomous market agents, behind the meter for consumption shifting, or co-located with distributed solar generation.
Lívia Neves
Feb 20, 2026
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Zeo signs MoU for 280 MW solar plus long-duration storage at Utah data center hub Zeo Energy isn't saying exactly what energy storage technology it may offer, but there are hints from its recent acquisitions.
Tristan Rayner
Feb 19, 2026
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Chinese Academy of Sciences unveils 101 MW compressor for compressed air energy storage The new compressor is described as the world’s most powerful single-unit compressed air energy storage (CAES) system, with a maximum discharge pressure of 10.1 MPa and an efficiency of 88.1%.
Emiliano Bellini
Feb 17, 2026

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