期刊
APPLIED ENERGY
卷 180, 期 -, 页码 416-423出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.apenergy.2016.07.114
关键词
IO-LCA; Carbon footprint; Wind farm; Peak regulation
资金
- Fund, for Innovative Research Group of the National Natural Science Foundation of China [51421065]
- National Natural Science Foundation of China [71573021]
- Ministry of Science and Technology of China [SQ2013ZOA000022]
The reserves and exploitable capacity of the wind power resource in China are both ranked first in the world and could be developed to strengthen China's energy security and mitigate global warming. Carbon footprint accounting of wind farms is vital for large-scale wind energy exploitation. This paper establishes a systematic accounting framework with life cycle assessment (LCA) and input-output analysis (IOA) for the overall carbon footprint of the life cycle of a typical wind farm. Carbon emissions from the construction, operation, and dismantling phases are considered in the LCA of the wind farm. Then, each expense of the wind farm is treated as a change in exogenous demand for the output of the corresponding economic sectors according to the IOA. In addition, the virtual carbon footprint from peak regulation triggered by the on-grid fluctuation of wind power is incorporated. The results show the total carbon footprint of the studied wind farm is 1.45 x 10(4) tCO(2) over the 21-year lifetime. The construction phase accounts for the largest fraction (76.74%), followed by the operation phase (15.32%) and dismantling phase (7.94%). According to the IOA, the indirect carbon footprint of the wind farm is greater than the direct footprint. The Smelting and Pressing of Metals sector that produces the steel and copper used to manufacture the wind turbines dominates the carbon footprint. The virtual carbon footprint of coal-fired power for wind power peak regulation is estimated to be 2.08 x 10(3) tCO(2), which is close to that of the operation phase. (C) 2016 Elsevier Ltd. All rights reserved.
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