Specifications	Scenarios	Embodied energy (kJ/kWh)	Energy output (MWh/yr)	EPBT yr	Environmental impact	Source
2 MW wind turbine	Nacelle, rotor, tower	-	4000	0.40	2356 pt GWP avoided	Martinez et al. [10]
2 MW wind turbine	Nacelle, rotor, tower, foundation	-	4000	0.40	2615 pt GWP avoided	Martinez et al. [10]
2 MW wind turbine	Reduction by half of the recycling	-	-	-	Approximate. 11, 500 point increase	Martinez et al. [11]
2 MW geared turbine	BCRS	-	-	0.69	9.78 g CO₂e/kWh	Guezuraga et al. [9]
	WCRS	207.99	5980 (2990 h)	1.15	17.35 g CO₂e/kWh
	WCRS and WCOS	358.44	3470 (1738 h)	1.99	29.48 g CO₂e/kWh
Vertical axis	100% reuse	0.00927	0.539	-	6.3079 g CO₂e/kWh	Uddin and Kumar [12]
	90% reuse	0.01763			5.7514 g CO₂e/kWh
	80% reuse	0.02597			5.1948 g CO₂e/kWh
Horizontal axis	100% reuse	0.002245	1.782	-	1.7677 g CO₂e/kWh (avoided)
	90% reuse	0.0030864			1.6554 g CO₂e/kWh (avoided)
	80% reuse	0.0035476			1.54320 g CO₂e/kWh (avoided)