Wind power plant full life cycle greenhouse gas emission intensity calculation method considering land utilization change

By constructing a full life-cycle greenhouse gas emission model that includes vegetation and soil carbon pool losses and carbon sink losses, the problem of underestimating wind farm emissions and overestimating emission reduction potential has been solved, achieving high-precision carbon emission intensity accounting and sustainable development support.

CN120911759APending Publication Date: 2025-11-07WUXI UNIV
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Patent Information

Application Number
CN202511040405.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2025-07-24
Filing Date
2025-07-28
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

Existing methods for calculating greenhouse gas emissions from wind farms throughout their entire life cycle fail to adequately consider vegetation carbon loss, soil organic carbon loss, and ecosystem service function decline caused by land use change. This leads to an underestimation of emissions and an overestimation of emission reduction potential. Furthermore, these methods neglect the dynamic changes in wind turbine operating performance, resulting in inaccurate emission intensity calculations.

Method used

A total greenhouse gas emission model is constructed for the entire life cycle, including emissions from wind turbine components and materials, emissions from carbon pool loss in vegetation and soil, and emissions from carbon sink loss. The model captures the nonlinear degradation of power generation performance caused by equipment aging through a phased dynamic decay capacity factor, and accurately calculates power generation and carbon emission intensity.

Benefits of technology

It improves the accuracy of greenhouse gas emission intensity calculation throughout the life cycle of wind farms, avoids underestimation of emissions, provides data support for high-precision carbon footprint assessment and emission reduction potential calculation, and supports the sustainable development of wind power.

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Abstract

The invention provides a method for calculating the full-life-cycle greenhouse gas emission intensity of a wind power plant in consideration of land utilization change, and the method comprises the steps: constructing a full-life-cycle greenhouse gas emission total amount model which comprises wind power turbine part and material emission, vegetation and soil carbon library loss emission and carbon sink loss emission; three types of land utilization indirect emission including vegetation and soil carbon library loss and potential carbon sink loss are taken into accounting, the limitation that only direct emission is concerned is broken through, emission underestimation in scenes such as a forest type wind power plant is avoided, and data support is provided for high-precision carbon footprint evaluation; power generation performance nonlinear degradation caused by equipment aging is accurately captured through staged dynamic attenuation capacity factors, and the power generation capacity and the carbon emission intensity accounting precision are improved; according to a full-life-cycle greenhouse gas emission total amount model and the power generation total amount, the full-life-cycle greenhouse gas emission intensity is obtained, and data support is provided for accounting of the wind power emission reduction potential and sustainable development of wind power.
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