50,000 TWh is around 1/4 of all energy we use as a species on this planet. It's on another scale, hard to imagine.
Yes, China had 359 GW of utility scale solar in 2024 and was installing another 277. That's ~1100 TWh annually.
Yes, China is building 150 new gigawatt scale nuclear power plants until 2035, that's another ~1200 TWh.
Yes, China has 521 GW of installed wind turbines, this amounts to another ~1400 TWh.
It all dwarves Western efforts, but amounts to less than 10% of China's energy hunger. So much more is still needed. And this is a moving target as energy consumption is still going up!