Carbonbrief put out a report with a similar theme last July.

They calculated that Chinese green tech exports in 2024 reduced the rest of the world's carbon by 1%.

It's mostly solar (though they calculated EVs and some other stuff too) so assuming 25 years life that would be equivalent to 25% of the world-minus-China's CO2 emissions or about 18%.

So Chinese exports in one year cancel out 2/3rds of their yearly CO2.

https://www.carbonbrief.org/analysis-chinas-clean-energy-exp...

In 2025 they exported about 25% more in dollar terms, though prices keep falling so that can be misleading in terms of impact.