The Electric: China’s Iron-Based Batteries Are Even Cheaper Than We Thought

On Monday, we reported that the going rate for iron-based batteries in China had plunged to an astonishing $56 per kilowatt hour, 40% below last year’s average outside the country. But we have since learned that the average price is even lower—$47/kWh, half as much as such batteries outside China, according to a survey last month by BloombergNEF, a renewable energy research firm.