TOKYO -- China's alleged abuses against Uyghur Muslims in Xinjiang are now casting a shadow over the solar industry, as human-rights-conscious countries shy away from a region that is one of the world's biggest sources of silicon.
The price of silicon used to make polycrystalline wafers for solar panels now stands at more than $27 per kilogram, compared with $6 or so in June 2020, according to Tokyo-based consulting firm RTS. Roughly 80% of global production of this raw material -- which does not need to be as pure as the silicon used in semiconductors -- is handled in China, with about half of that in Xinjiang.
