In China, the overcapacity reflects years of generous subsidies and ambitious factory rollouts. A study by the Center for Strategic and International Studies noted that China channeled more than $230 billion in subsidies into its EV sector from 2009 to 2023, supporting battery makers and EV producers even as domestic take-up plateaued. The result: factories capable of far more production than current domestic or export markets absorb. In Europe, despite strong policy drives for electrification, demand growth has been slower than expected and cannot absorb recent capacity additions. In North America, although the overcapacity multiple is relatively lower, the challenge remains: local production is expanding faster than EV adoption and the shift to lower-cost chemistries such as lithium-iron-phosphate (LFP) is only just beginning.
The implications are significant. In China, a 5.6× ratio means many battery plants will run well below optimal utilization for years, squeezing margins and forcing either shutdowns or redirection of output toward stationary energy-storage markets. In Europe and North America, the challenge is less extreme in numerical terms but no less serious: capacity built on assumptions of rapid EV uptake may now operate under sub-par conditions, raising cost per unit and increasing risk of consolidation or write-downs. The global capacity-to-demand ratio is expected to settle around 2.4 × by 2028 and hold through 2030.
For energy and sustainability professionals, the takeaway is clear: the bottleneck is shifting from “build capacity” to “fill capacity.” Battery-makers and OEMs now face the dual challenge of accelerating EV adoption while managing the economics of underutilized plants. Policymakers may need to pivot from subsidizing buildouts toward ensuring real-world deployment and demand. Without that alignment, the promise of low-cost mass-market EVs may be delayed.
