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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UL Solutions launches certification program for bidirectional EV storage UL Solutions has launched a certification program for bidirectional electric vehicle supply equipment (BEVSE), opening formal compliance testing for AC-based vehicle-to-grid systems under the UL 1741 Supplement SC standard.
Ben Zientara
4 hours ago
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Iron-mediated cathode enables 206 Wh/kg sodium-ion pouch cell Chinese researchers have developed an iron-mediated strategy that improves the reversibility and stability of lattice-oxygen redox reactions in sodium-ion battery cathodes. A 15.8 Ah pouch cell using the cathode achieved an energy density of 206 Wh/kg, with lattice-oxygen redox reversibility reaching 99%.
Lior Kahana
Sep 11, 2026
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NTPC invites bids for sodium-ion battery pilot in India India’s NTPC plans to set up a sodium-ion battery energy storage system (BESS) pilot to assess the technology’s performance, safety, and commercial viability under local grid and climate conditions.
Uma Gupta
Sep 10, 2026
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New electrode design by German institutes increases battery energy density by up to 15% Fraunhofer ISE and its partners have developed thicker electrodes that could increase battery cell energy density by 10% to 15% without adding weight. The PFAS-free, solvent-free concept has been demonstrated in lithium-ion, sodium-ion, and zinc-ion cells and is designed for cost-effective mass production.
Lior Kahana
Sep 09, 2026
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HiNa Battery scales Korean sodium-ion partnership from 15 MWh to 10 GWh The agreement follows a 15 MWh validation program covering utility-scale, commercial and residential storage applications.
Vincent Shaw
Sep 08, 2026
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Interview with ESS Inc CEO Drew Buckley ESS Inc President and CEO Drew Buckley tells ESS News the company has pivoted its strategy in 2026 around sodium-ion storage, citing nearly $1 billion in early-stage opportunities and a more measured approach to its iron flow technology amid tight liquidity.
Tristan Rayner
Sep 04, 2026
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UNIGRID completes Hyundai accelerator test of sodium-ion cells UNIGRID has completed technology validation of its sodium chromium oxide (NCO) sodium-ion cells through Hyundai Motor Group's ZER01NE Accelerator program, with Hyundai planning to jointly develop a sodium-ion battery energy storage system (BESS).
Brian Publicover
Sep 02, 2026

All Technologies news

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Illustration of geomechanical energy storage project
Texas to host 300 MW of geomechanical energy storage projects Quidnet Energy, a provider of geomechanical energy storage (GES) technology, has joined hands with distributed energy resources developer Hunt Energy Network to deliver 300 MW of storage projects in the Electric Reliability Council of Texas (ERCOT) grid operating region.
Marija Maisch
May 30, 2024
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Disassembled batteries
Spanish initiative for advanced battery recycling technologies Spain's Energy Technology Institute has initiated a project named RECILION in a bid to develop advanced recycling technologies that are reproducible on a commercial scale.
Pilar Sanchez Molina
May 27, 2024
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Assistant Professor Golareh Jalilvand and her research team
Bringing lithium-sulfur batteries closer to commercialization Researchers at the University of South Carolina have successfully transitioned their highly-durable lithium-sulfur battery technology from coin to pouch cells and reported competent energy densities.
Marija Maisch
May 27, 2024
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China southern power grid
China switches on first large-scale sodium-ion battery China Southern Power Grid has deployed a 10 MWh sodium-ion battery in China’s Guangxi Zhuang region. It is the first phase of a 100 MWh project.
Pilar Sanchez Molina
May 21, 2024
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Schematic of the system
Integrating pumped hydro with compressed air energy storage A group of Chinese researchers has made a first attempt to integrate pumped hydro with compressed air storage and has found the latter may help the former to better deal with large head variations.
Emiliano Bellini
May 16, 2024
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Varta group
German initiative to develop scalable sodium-ion batteries A collaborative project led by German battery supplier Varta aims to develop industrial-scale sodium-ion battery technology. The final product of the three-year, €7.5 million ($8.08 million) project will be a small series of round cells for electric vehicles and stationary storage systems.
Patrick Jowett
May 16, 2024
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Diagrams of vanadium redox flow batteries
Evaluating the profitability of vanadium flow batteries Researchers in Italy have estimated the profitability of future vanadium redox flow batteries based on real device and market parameters and found that market evolutions are heading to much more competitive systems, with capital costs down to €260/kWh at a storage duration of 10 hours.
Marija Maisch
May 01, 2024
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Honda electric vehicle
Car batteries can optimize the power grid Australian researchers have found that if 10% of vehicles are electric and utilize V2G connections, they could reduce peak electricity demand at local substations by 6% and save car owners hundreds of dollars per year on charging costs.
John Fitzgerald Weaver
Mar 13, 2024
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World map with pumped hydro markers
Global atlas for pumped hydro at mining sites The researchers that created the atlas considered mining pits, pit lakes and tailings ponds within mining sites and located nearby reservoirs. The selected sites have a potential storage capacity of 30 TWh.
Emiliano Bellini
Feb 28, 2024

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