Characterization of the life cycle greenhouse gas emissions from wind electricity generation systems

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The characterized wind electricity generation systems were statistically evaluated to assess the reduction in life cycle GHG emissions. A total of five unique categorization codes (HAWT-ON-S. HAWT-ON-I. HAWT-ON-L. HAWT- OFF-L. VAWT-ON-S) were designated to the 29 wind electricity generation LCA studies (representing 74 wind system cases) using the proposed categorization index. The mean life cycle GHG emissions resulting from the use of HAWT-ON-S (N=3). HAWT-ON-I (N=4). HAWT-ON-L (N=58). HAWT-OFF-L (N=8). and VAWT-ON-S (N=1) wind electricity generation systems are 38.67. 11.75. 15.98. 12.9. and 46.4 gCO2 e kWh. respectively. The HAWT-ON-I wind electricity generation systems produced the minimum life cycle GHGs than other wind electricity generation systems.