[fy20]

Wind turbines take less than a year to become CO2 neutral - generating enough electricity to offset the embodied CO2 used to produce, transport and construct the turbine.

https://www.newscientist.com/lastword/mg24332461-400-what-is...

This will likely go down over time though, as steel and concrete (which are both very much recyclable today) are big parts of wind turbines so as those become "greener" so will the wind turbines.

Yes the blades are not currently recycled, but like most things, this is because it's cheaper to produce new than to recycle. If it became economically viable or government's mandated it, then it would happen. There are already some processes to recycle glass fibre composites:

https://www.materialstoday.com/carbon-fiber/features/recycli...

[jokoon]

You mean comparing the CO2 emitted by gas or coal?