China's renewable energy contribution is around 30-40% . So quite a considerable amount of the energy required to build that boat did come from renewables. A percentage that is growing year on year.

China on course to hit wind and solar power target five years ahead of time

Beijing bolstering position as global renewables leader with solar capacity more than rest of world combined

https://www.theguardian.com/world/2023/jun/29/china-wind-solar-power-global-renewable-energy-leader