China proposes export ban on perovskite and tandem solar technologies

· Energy · China

China has proposed banning exports of selected high-efficiency perovskite and tandem solar manufacturing technologies, along with new restrictions on advanced polysilicon, wafer and crystalline-silicon cell production processes. The proposed measures would cover 12 photovoltaic technologies, and a public consultation is open. The move would tighten China's grip on next-generation solar manufacturing know-how, potentially slowing overseas efforts to build domestic high-efficiency capacity. Companies outside China that rely on importing equipment, processes or technical expertise could face longer development timelines and higher costs. The proposal is part of a broader trend of export controls on critical energy technologies, and its final scope will depend on the consultation outcome.

Why it matters：Export controls on next-generation solar technology would reshape global supply chains for high-efficiency PV manufacturing and could accelerate or delay efforts to diversify production outside China.

Key points

  • The proposal targets perovskite and tandem solar manufacturing technologies.
  • It also covers advanced polysilicon, wafer and crystalline-silicon cell processes.
  • Twelve photovoltaic technologies are included, with public consultation open.

Sources (original reporting)

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