China’s solar industry, the world’s largest, is entering a difficult correction phase after years of record-breaking expansion, as installation growth decelerates, subsidy reforms shift projects to market-based pricing, and massive manufacturing overcapacity collides with a rapid technology transition toward higher-efficiency cells. This slowdown matters because China produces over 80% of global solar modules, meaning its domestic demand shifts and supply-chain restructuring will cascade through pricing, investment, and deployment timelines worldwide.
The immediate driver is a confluence of policy and market forces. Beijing’s phase-out of feed-in tariffs in favor of competitive auctions and spot-market exposure has compressed developer margins, while grid constraints in resource-rich provinces have created curtailment risks that make new projects harder to finance. At the same time, the industry is migrating from PERC to TOPCon and heterojunction architectures, stranding capital tied to older production lines and forcing manufacturers to choose between costly retrofits and write-downs.
Overcapacity remains the structural elephant in the room. Nameplate capacity across the polysilicon, wafer, cell, and module chain far exceeds both domestic installation targets and realistic export absorption, especially as the U.S., Europe, and India erect trade barriers to protect nascent local manufacturing. The result is a price war that has pushed module spot prices below $0.10 per watt in some segments — below cash cost for all but the most integrated, lowest-cost producers.
For global stakeholders, the signal is clear: the era of cheap, policy-fueled volume growth is giving way to a phase where technology differentiation, balance-sheet strength, and access to end markets determine survival. Investors should watch for consolidation among mid-tier Chinese makers, accelerated capacity announcements in Southeast Asia and the Middle East as firms seek tariff-free export platforms, and a potential floor in equipment spending as the technology transition stabilizes around TOPCon as the new mainstream.
Read the full report at CleanTechnica