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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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
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Envision launches 12.5 MWh AI storage system, starts production of 790 Ah LFP cell Envision adds to the impressive list of announcements out of ESIE 2026, with a new BESS and new LFP cell.
Vincent Shaw
Apr 09, 2026
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VRF long-duration batteries answer demands of electricifation: Eora Energy Sydney-headquartered vanadium redox flow battery company EORA Energy has launched in Australia with a pipeline of long-duration energy storage projects in mining, data centres and regional infrastructure.
Ev Foley
Apr 09, 2026
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ERCOT proposes $1,500/MW incentive for legacy Texas storage to adopt grid stability support Older storage and renewables might be incentivized to add grid stability services in Texas if current plans continue with a $25 million program.
Tristan Rayner
Apr 08, 2026
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Titanium emerges as a vanadium alternative for redox flow batteries A Japanese-Chinese team developed a titanium molten salt redox-flow battery using abundant titanium ions and molten salt electrolytes to enable high-voltage, fast, and stable grid-scale energy storage. The system demonstrates high efficiency of over 97%, strong cycling stability, and improved cost and scalability compared to vanadium-based batteries, with further optimization underway.
Emiliano Bellini
Apr 08, 2026
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Renalfa BESS in Bulgaria
Utility-scale sodium-ion arrives in Romania: Renalfa plans 3.6 GWh dual-chemistry BESS A major Romanian hybrid cluster is advancing after the acquisition of significant PV and BESS assets in the country. New investment will then mix lithium-ion and sodium-ion storage
Tristan Rayner
Apr 08, 2026

All Technologies news

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Conductive smart hydrogels as battery electrolytes: Promising for lithium, sodium, and zinc-ion chemistries Hydrogels offer promise in batteries as an electrolyte, including lithium and sodium chemistries, due to being inherently more safe.
Tristan Rayner
Apr 02, 2026
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Can sodium-ion storage drive energy flexibility in France? France’s Association Environnement Juste has proposed a storage mandate for renewables projects exceeding 10 kWp in order to integrate flexibility at the source. The association argues European sodium-ion batteries could present an economically and environmentally viable solution, capable of stabilizing grids without depending on imported metals.
Marie Beyer
Apr 01, 2026
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Chinese team reports hydrofluorocarbon electrolyte for 700 Wh/kg lithium battery Nature paper shows lithium-metal pouch cells above 700 Wh/kg and operation down to -70 C.
Vincent Shaw
Mar 30, 2026
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Sodium-ion cells launched for energy storage by another Chinese mid-tier battery company Bosa Energy in Hubei, China, has launched sodium-ions cells for stationary energy storage, with a volumetric energy density of 206 Wh/L
Tristan Rayner
Mar 30, 2026
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Australia’s Transgrid shortlists 2 GW of batteries in nine projects to strengthen state grid New South Wales transmission company has shortlisted nine battery energy storage projects with a combined capacity of 2 GW to provide essential system strength services to the state’s electricity grid from later this year.
David Carroll
Mar 30, 2026
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From lab to grid: making LDES bankable The chemistry debates hide the real issues: Commercial readiness, technological advancement, operational flexibility, and market adaptation
Raafe Khan
Mar 27, 2026
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German pilot shows 700 EVs can provide redispatch services TransnetBW says its pilot with Octopus Energy shows 700 electric vehicles can deliver grid flexibility within existing redispatch processes, with potential to scale to gigawatt-hour levels.
Marian Willuhn
Mar 27, 2026
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Form Energy, Crusoe partner on 12 GWh of iron-air batteries for AI data centers Only weeks after announcing the world’s largest project to support a Google data center in Minnesota, the US iron air battery specialist has entered another mega deal, bringing its project pipeline under agreement to more than 75 GWh.
Marija Maisch
Mar 26, 2026
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Molecular solar battery stores energy for days, yields hydrogen on demand Researchers at Ulm University and Friedrich-Schiller-Universität Jena have built a molecular system that captures solar energy in a water-soluble redox copolymer, stores it at more than 80% charging efficiency for several days, and releases it as hydrogen with 72% conversion efficiency whenever required.
Pilar Sanchez Molina
Mar 24, 2026

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