China’s Dominance in the Solar Panel Supply Chain

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Many governments are investing in renewable energy sources like solar power, but who controls the manufacturing of solar photovoltaic (PV) panels?

As it turns out, China owns the vast majority of the world’s solar panel supply chain, controlling at least 75% of every single key stage of solar photovoltaic panel manufacturing and processing.

This visualization shows the shares held by different countries and regions of the key stages of solar panel manufacturing, using data from the International Energy Agency (IEA).

Solar Panel Manufacturing, by Country and Stage

From polysilicon production to soldering finished solar cells and modules onto panels, China has the largest share in every stage of solar panel manufacturing.

Even back in 2010, the country made the majority of the world’s solar panels, but over the past 12 years, its average share of the solar panel supply chain has gone from 55% to 84%.

China also continues to lead in terms of investment, making up almost two-thirds of global large-scale solar investment. In the first half of 2022, the country invested $41 billion, a 173% increase from the year before.