Batteries
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Global PV oversupply accelerates consolidation, regional price divergence
pv magazine spoke with Edurne Zoco, Head of Technologies and Supply Chains at S&P Global Energy, about global PV supply chain trends, persistent overcapacity and the impact of China’s new efficiency standards on solar manufacturing. She discussed module pricing, shifting trade policies and emerging risks and opportunities in the inverter and battery storage markets.
Oct 09, 2026
AuroraCell launches 9.7 kWh sodium-ion chromium oxide residential battery
The 48 V residential energy storage system uses sodium-ion NCO chemistry and offers 9.7 kWh of rated energy. AuroraCell claims a cycle life of 20,000 cycles at 100% depth of discharge and backs the battery with a 20-year warranty.
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The U.S. market is writing its own sodium-ion spec
Sodium-ion batteries are rapidly transitioning from promising alternative to commercial reality in the U.S. energy storage market, but navigating federal domestic content policies, complex FEOC sourcing rules, and stringent UL 9540A safety testing remains crucial for developers seeking to deploy scalable, bankable projects.
Indian startup claims over 1,500 cycles for sodium-ion cell with Prussian white cathode
Indian startup Macsen Energy claims its Prussian white-based sodium-ion battery cell has exceeded 1,500 charge-discharge cycles in laboratory testing, retaining 90% of its initial capacity after 1,000 cycles. The company also plans to build a cathode material production facility and battery cell pilot line, with construction set to begin in 2027.
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Sodium-ion batteries: the next frontier or the next risk?
While sodium-ion offers a compelling long-term solution to flattening LFP cost curves and tight supply chains, its lack of field-validated performance data transfers significant technology and bankability risks directly onto developer balance sheets.
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