China flooded the world with cheap solar panels a decade ago, driving Western competitors out of business. It did the same with electric vehicles, prompting tariffs from Washington and Brussels. In 2025, the pattern repeated with batteries. Chinese manufacturers who had built twice as many factories as the world needed slashed prices to keep them running, pushing stationary storage packs down to $70 per kilowatt-hour, 45% cheaper than the year before. The decline was steep enough to reshape what power companies pay for electricity during the most expensive hours of the day.
Chinese overbuilding was the biggest single force behind the price collapse, but it wasn't the only one. A shift toward cheaper battery chemistry, a crash in lithium prices, and a decades-long accumulation of manufacturing improvements all hit at the same time, each amplifying the others. On its own, any one of those forces would have pushed prices down gradually. Their convergence is what turned a steady decline into a collapse.
Cheaper batteries are good news for electricity costs and for the climate. But the conditions that made them possible are unwinding. Lithium prices have already rebounded, and the tariffs designed to counter China's trade practices are adding new costs of their own.
Chinese battery manufacturers spent the early 2020s building factories at a pace that ***** umed electric vehicle demand would keep surging. It worked for a while. By 2024, China produced enough battery cells — the basic units that store electricity and power electric vehicles — for every car sold on the planet that year. But global manufacturing capacity far outstripped what anyone needed. At roughly 2,600 gigawatt-hours, the world's factories could supply every battery the market demanded and still have enough idle capacity to outfit nearly every home in America with its own storage system.
Even as the surplus became apparent, manufacturers kept adding capacity through 2025. The world's battery factories nearly doubled their capacity to more than 4,000 gigawatt-hours of cells a year — more than four times what the market actually bought — with China accounting for more than 80% of the total.
#battery #capacity #manufacturers
Chinese overbuilding was the biggest single force behind the price collapse, but it wasn't the only one. A shift toward cheaper battery chemistry, a crash in lithium prices, and a decades-long accumulation of manufacturing improvements all hit at the same time, each amplifying the others. On its own, any one of those forces would have pushed prices down gradually. Their convergence is what turned a steady decline into a collapse.
Cheaper batteries are good news for electricity costs and for the climate. But the conditions that made them possible are unwinding. Lithium prices have already rebounded, and the tariffs designed to counter China's trade practices are adding new costs of their own.
Chinese battery manufacturers spent the early 2020s building factories at a pace that ***** umed electric vehicle demand would keep surging. It worked for a while. By 2024, China produced enough battery cells — the basic units that store electricity and power electric vehicles — for every car sold on the planet that year. But global manufacturing capacity far outstripped what anyone needed. At roughly 2,600 gigawatt-hours, the world's factories could supply every battery the market demanded and still have enough idle capacity to outfit nearly every home in America with its own storage system.
Even as the surplus became apparent, manufacturers kept adding capacity through 2025. The world's battery factories nearly doubled their capacity to more than 4,000 gigawatt-hours of cells a year — more than four times what the market actually bought — with China accounting for more than 80% of the total.
#battery #capacity #manufacturers
2 days ago
