They’ve also built way more coal plants and nuclear plants than anyone else. What’s your point? China is a massive country with massive electricity needs (they still use half per capita that the west does and they’re trying to close that gap).

Nuclear and coal is the plan for baseload because solar/wind doesn’t cut it for that use (coal I believe is intended to be a mechanism of last resort intended to never be run as long as other alternatives are available although I suspect reality will not be so kind).