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
21 hours ago
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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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‘Italy could have potassium battery gigafactory by 2030’ Polytechnic University of Turin professor Silvia Bodoardo told pv magazine Italia about the innovative battery projects her institution is working on.
Sergio Matalucci
Jul 09, 2025
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“Grid-forming technology is no longer experimental – it’s here and working” In grids increasingly dominated by renewables, grid-forming technology is emerging as critical tool for maintaining stability and ensuring reliable power system operation. In this interview with ESS News, Rui Sun, Sungrow’s Deputy General Manager-Grid Technology Center, explains how grid-forming works, why it matters, and where the technology is already proving its value. He elaborates on technical challenges, regulatory gaps, and why grid-forming could soon become the new industry standard.
Marija Maisch
Jul 07, 2025
2
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China completes world’s largest vanadium flow battery plant A giant solar-plus-vanadium flow battery project in Xinjiang has completed construction, marking a milestone in China's pursuit of long-duration, utility-scale energy storage.
Vincent Shaw
Jul 04, 2025
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US DOE awards $14m for unique energy storage systems for critical facilities and infrastructure The US Department of Energy's (DoE) Critical Facility Energy Resilience (CiFER) fund will back an organic quinone flow battery and an iron and sodium long duration energy storage (LDES) system in California, plus a lithium battery with a novel cathode material in New York state.
Max Hall
Jul 04, 2025
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Batteries with 200 Wh storage per kW of solar capacity could mitigate curtailment in Spain Researchers have studied the energy and economic implications of the curtailment of solar energy in Spain over the past two years and concluded batteries can mitigate the problem. The academics calculated the impact of curtailment on levelized cost of energy (LCOE) and net present value (NPV).
Pilar Sanchez Molina
Jul 01, 2025
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Testing begins on 20 MWh, ‘Europe’s largest’ vanadium redox flow battery Fraunhofer ICT says the pilot facility has demonstrated how clean energy can feed the grid regardless of weather conditions.
Pilar Sanchez Molina
Jul 01, 2025
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Sonnen launches 2 MWh virtual power plant in Canadian sustainable home community As a prototype, the Blatchford Lands VPP begins with 100 Sonnen batteries deployed throughout the community, representing nearly a half a megawatt of power and over 2 megawatt hours of storage capacity that will support the Canadian energy grid.
Anne Fischer
Jun 27, 2025
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Swedish startup testing silicon anode battery material Sweden-based Green14, a plasma silicon startup, said its silicon-based anode material is being tested by the battery group at RISE, Sweden’s national research organization.
Valerie Thompson
Jun 26, 2025
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Discounts don’t buy home battery trust in Australian rebate landscape, study finds A new study out of Curtin University in Perth has found that despite growing affordability from government rebates, Australian households hesitate to adopt home batteries due to significant non-financial barriers.
Ev Foley
Jun 26, 2025

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