The past month has brought a mix of regulatory tightening, uneven demand signals and a notable technology breakthrough for the global solar sector.

On policy, China’s Ministry of Industry and Information Technology is moving to raise barriers for PV manufacturing. Three mandatory national standards on energy consumption and efficiency for polysilicon, monocrystalline silicon and modules are set to take effect on January 1, 2027. Analysts estimate the new rules could reduce industry-wide capacity by 30% or more, accelerating the exit of inefficient producers. Separately, a draft revision to China’s export-control catalogue would add 12 PV-related technologies—covering polysilicon, wafer and cell manufacturing—to the restricted list, a move that could reshape technology flows and equipment supply chains.

Demand presents a mixed picture. China added 110.83 GW of solar in the first nine months of 2026, down sharply year-on-year, though September alone saw 13.64 GW, up 41.2% year-on-year—the second consecutive month of positive growth. BloombergNEF expects full-year global installations to fall about 10.8% to 584 GW in 2026, before recovering to 618 GW in 2027, with growth driven by India, Southeast Asia and Africa rather than China. Overseas orders have been active: six major Chinese manufacturers signed more than 7 GW of overseas contracts since October, including a 1.36 GW module deal in Romania and a 415 MW order in Bulgaria.

Technology offered the clearest positive headline. A Soochow University team reported a certified 35.1% steady-state efficiency for a perovskite-silicon tandem cell, matching the efficiency of costly multi-junction gallium arsenide cells at a fraction of the material cost. On the manufacturing side, China’s first 2-meter-class perovskite crystallization equipment entered stable operation, lifting mass-production yield from 70% to over 90% for large-format thin films.

Taken together, the month’s developments point to an industry in transition: policy is forcing consolidation, demand is shifting geographically, and tandem technology is moving from laboratory records toward industrial validation.