期刊
ENVIRONMENTAL RESEARCH LETTERS
卷 16, 期 5, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1748-9326/abf7f1
关键词
aviation; greenhouse gases; climate damages; gate electrification; life-cycle assessment; climate change; airport
资金
- Groupe ADP
Complete electrification of gate operations at airports can significantly reduce greenhouse gas emissions and save economic costs, with an average reduction of 63%-97% per gate operation and an economic payback period of 1-2 years. This shift could save high-traffic airports an average of $5-6 million annually, demonstrating potential environmental and economic benefits.
Aircraft at airport gates require power and air conditioning, provided by fossil fuel-combusting equipment, to maintain functionality and thermal comfort. We estimate the life-cycle greenhouse gas (GHG) emissions and economic implications from electrifying gate operations for 2354 commercial-traffic airports in the world. Here we show that complete electrification could yield GHG reductions of 63%-97% per gate operation relative to current practice, with greater reductions correlated with low-carbon electricity. Economic payback periods average just 1-2 years. Shifting to complete gate electrification could save a high-traffic airport an average of $5-6 million in annual climate economic damages relative to estimates of current practice. 10-12 million metric tons of annual GHG emissions are potentially saved if most airports in the world electrified gate operations, costing the 24 busiest global airports on average $25-30, U.S. airports $60-70, and non-U.S. airports $80-90 per metric ton of CO2 mitigated, in some cases comparable to carbon-market prices. Environmental benefits depend primarily upon electricity sources and operational parameters such as aircraft fleet composition.
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