Can you review this [1] and ELI5 why solar seems to work in China, but the Sun doesn't shine enough to make the economics work in the west according to your re

Can you review this [1] and ELI5 why solar seems to work in China, but the Sun doesn't shine enough to make the economics work in the west according to your research? [1] https://en.wikipedia.org/wiki/Solar_power_in_China https://en.wikipedia.org/wiki/Solar_power_in_China