If you're discussing the source of power and not the amount of power, then meter readings are the wrong metric.
If you want to know what is generating the power you can use government statistics, but just as the west is biased against the east, so the east has its own positive bias.
I can't tell you anything, but I know I don't know.
Because I know I don't know, I know that people with less experience of China know less, which means they definitely don't know.
If you're interested in understanding my bias and my dissapointment with the western portrayal of it, I wrote an article here:
https://habla.news/u/mhardcastle@nostrplebs.com/1738253222927