Author: Anela Dokso

In a marked departure from years of cautious optimism, merchant battery energy storage systems (BESS) in India have turned profitable. According to a new report from energy think tank Ember, BESS projects commissioned in 2025 could deliver internal rates of return (IRR) of up to 17% by engaging solely in India’s power exchanges—without fixed power purchase agreements (PPAs).

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As the global market for aqueous batteries accelerates—projected to exceed $10 billion by 2030—a new study from KAUST’s Center of Excellence for Renewable Energy and Storage Technologies (CREST) sheds light on a persistent challenge: short lifespan due to parasitic reactions at the metal-electrolyte interface. The research, published in Science Advances, reveals that the addition of sulphate ions, specifically from salts like zinc sulphate, could increase aqueous battery lifespan by over a factor of ten, while maintaining chemical stability and cost-effectiveness. The finding has implications well beyond academic interest. Aqueous batteries are positioned as safer, more sustainable alternatives to lithium-ion systems…

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