My understanding, as a non-expert: the best place for both on-shore wind and solar power generation is in the West of the country (particularly in Xinjiang), bu

My understanding, as a non-expert: the best place for both on-shore wind and solar power generation is in the West of the country (particularly in Xinjiang), but most of the power demand is in the East. China is addressing this by building long-distance, ultra-high-voltage connections between the West and East of the country. This article (from 2017, but it gives you an idea of the problem) has a good map: https://www.economist.com/graphic-detail/2017/01/16/china-powers-ahead-with-a-new-direct-current-infrastructure https://www.economist.com/graphic-detail/2017/01/16/china-po....