台灣每年溫室氣體排放量約298百萬公噸二氧化碳當量，交通部門活動為台灣第二大空氣汙染源，其中機車占了排放的百分之十三(4.61MtCO2e)，因此有必要減少交通部門之排放，以減緩全球暖化。有鑑於此，本研究運用生命週期評估法，探究原料取得與製造、消費者使用、廢棄與回收階段，分析電動機車與燃油機車之環境差異；研究不同能源(火力、天然氣、氫能、水力、太陽能與風能)使用於電動機車之環境效益。
研究結果顯示，(1) 燃油機車與電動機車(使用當前台灣電網)具有排放差異，前者較高(7,884.44kgCO2e)，後者較低(4,834.21kgCO2e)。(2) 電動機車使用替代能源中，以風力(9.04gCO2e/kWh)每千瓦小時二氧化碳當量排放最低，其餘依序分別為氫能(12.92gCO2e/kWh)、水力(25.8gCO2e/kWh)與太陽能(32.2gCO2e/kWh)；電動機車使用傳統能源中以天然氣(610gCO2e/kWh)最低，其次為燃煤(801.01gCO2e/kWh)。(3) 比較燃油機車、電動機車與各能源機車，燃油機車生命週期碳足跡最高 (7,884.44kgCO2e)，其次依序為燃煤 (5,826.85kgCO2e)、天然氣 (5,177.54kgCO2e)、台灣電網 (4,834.21kgCO2e)、太陽能 (3,213.40kgCO2e)、水力 (3,191.64kgCO2e)，次低與最低分別為氫能與風能電動機車(3,148.13kgCO2e與3,134.67 kgCO2e)。(4) 台灣機車未來若能以替代能源(太陽能、水力、氫能與風能)取代燃油與火力為主的電動機車，每年可減少2.496MtCO2e至2.539MtCO2e排放，相當於種植了249.6百萬棵樹至253.9百萬棵樹。

To reduce greenhouse gases (GHG) emitted from the transportation sector, this study makes use of a carbon footprint analysis and life cycle assessment (LCA) with material production and manufacturing, consumer use, and stages of discard/recycling used to analyze the difference between electric motorcycles and fuel motorcycles in terms of their environmental effects. In this study, the environmental benefits of electric motorcycles charged with different types of energy (including coal-fired, natural gas, hydroelectric, solar, and hydrogen and wind energy) are evaluated in terms of their ability to reduce carbon emissions.
The research results show that fuel motorcycles (7,884.44kgCO2e) and electric motorcycles (4,834.21kgCO2e) using the current Taiwan power grid have different emissions. A comparison of fuel motorcycles, electric motorcycles, and alternative energy motorcycles showed that fuel motorcycles have the highest life cycle carbon emissions (7,884.44kgCO2e), followed by coal-fired (5,826.85kgCO2e), natural gas (5,177.54kgCO2e), and Taiwanese electric distribution (4,834.21kgCO2e), solar (3,213.40kgCO2e), hydropower (3,191.64kgCO2e), hydrogen energy (3,148.13kgCO2e), and wind energy electric motorcycles (3,134.67 kgCO2e). If fuel motorcycles and electric motorcycles can be replaced by alternative energy motorcycles (solar, hydro, hydrogen, and wind energy), the GHG emissions will be reduced from 2.496MtCO2e to 2.539MtCO2e in Taiwan. This reduction of emissions will be equivalent to planting 249.6 million trees to 253.9 million trees.

英文文獻.
Ambrose, H., Kendall, A., Lozano, M., Wachche, S., & Fulton, L. (2020). Trends in life cycle greenhouse gas emissions of future light duty electric vehicles. Transportation Research Part D, 81, 102287.
British Standards Institution. (2011). PAS 2050：2011. Retrieved November 18, 2020, from https://shop.bsigroup.com/upload/shop/download/pas/pas2050.pdf
Cox, B.L., & Mutel, C.L. (2018). The environmental and cost performance of current and future motorcycles. Applied Energy, 212, 1013-1024
Economist Intelligence Unit. (2009). Countdown to Copenhagen Government, business and the battle against climate change. Retrieved November 18, 2020, from http://graphics.eiu.com/marketing/pdf/copenhagen/Sustainability_2009.pdf
EEA. (2018a). CO2 emission intensity. Retrieved November 18, 2020, from https://www.eea.europa.eu/data-and-maps/daviz/co2-emission-intensity-5#tab-based-on-linked-open-data24.
EEA. (2018b). Renewable energy in Europe – 2018. Retrieved November 18, 2020, from https://www.eea.europa.eu/publications/renewable-energy-in-europe-2018#tab-data-references
Elshurafa A.M., & Peerbocus, N. (2020). Electric vehicle deployment and carbon emissions in Saudi Arabia: A power system perspective, The Electricity Journal, 33 , 106774
European Commission. (2019). Fourth Report on the State of the Energy Union. Retrieved November 18, 2020, from https://www.europeansources.info/record/fourth-report-on-the-state-of-the-energy-union/
Gao, C.-k., Na, H.-m., Song, K.-h., Dyer, N., Tian, F., Xu, Q.-j., & Xing, Y.-h. (2019). Environmental impact analysis of power generation from biomass and wind farms in different locations. Renewable and Sustainable Energy Reviews, 102, 307-317.
Ghandehariun, S., & Kumar, A. (2016). Life cycle assessment of wind-based hydrogen production in Western Canada. International Journal of Hydrogen Energy, 41(22), 9696-9704.
Govender, I., Thopil, G. A., Inglesi-Lotz, R. (2019). Financial and economic appraisal of a biogas to electricity project. Journal of Cleaner Production, 214, 154-165
IEA. (2018). CO₂ Emissions from Fuel Comnustion 2018 Highlights, Retrieved November 18, 2020, from https://webstore.iea.org/co2-emissions-from-fuel-combustion-2018-highlights IEA. (2018b). Key world energy statistics. Retrieved November 18, 2020, from https://webstore.iea.org/download/direct/2291?fileName=Key_World_2018.pdf
IEA. (2019). World Energy Outlook 2019. Retrieved November 18, 2020, from https://www.iea.org/weo2019/
IEA. (2020). CO₂ Emissions from Fuel Comnustion Overview, Retrieved November 18, 2020, from https://www.iea.org/reports/co2-emissions-from-fuel-combustion-overview
IPCC. (2014). AR5 Climate Change 2014: Mitigation of Climate Change, 2013. Retrieved November 18, 2020, from https://www.ipcc.ch/report/ar5/wg3/
IPCC. (2018). Summary for Policymakers. Retrieved November 18, 2020, from https://www.ipcc.ch/2018/10/08/summary-for-policymakers-of-ipcc-special-report-on-global-warming-of-1-5c-approved-by-governments/
ISO. (2006a). ISO 14040:2006 Environmental management – Life cycle assessment – Principles and framework. Retrieved November 18, 2020, from https://www.iso.org/standard/37456.html
ISO. (2006b). ISO 14044:2006 Environment management – Life cycle assessment – Requirements and guidelines for quantification amd communication. Retrieved November 18, 2020, from https://www.iso.org/standard/38498.html
ISO. (2018). ISO 14067:2018 Greenhouse gases – Carbon footprint of products – Requirements and guidelines for quantification. Retrieved November 18, 2020, from https://www.iso.org/standard/71206.html
Khan, I., Jack, M.J., & Stephenson, J. (2018). Analysis of greenhouse gas emissions in electricity systems using time-varying carbon intensity, Journal of Cleaner Production, 184, 1091-1101.
Koossalapeerom, T., Satiennam, T., Satiennam, W., Leelapatra, W., Seedam, A.,& Rakpukdee, T. (2019). Comparative study of real-world driving cycles, energy consumption, and CO2 emissions of electric and gasoline motorcycles driving in a congested urban corridor, Sustainable Cities and Society, 45, 619-627
Li, F., Ou, R., Xiao, X., Zhou, K., Xie, W., Ma, D., Liu, H., & Song, Z. (2019). Regional comparison of electric vehicle adoption and emission reduction effects in China. Resources, Conservation and Recycling, 149, 724-726
Li, J., Li, S., & Wu, F. (2020). Research on carbon emission reduction benefit of wind power project based on life cycle assessment theory. Renewable Energy, 155, 456-468.
Liang, X., Wang, Z., Zhou, Z., Huang, Z., Zhou, J., & Cen, K. (2013). Up-to-date life cycle assessment and comparison study of clean coal power generation technologies in China. Journal of Cleaner Production, 39, 24-31.
Mahlangu, N., & Thopil, G., A. (2018). Life cycle analysis of external costs of a parabolic trough Concentrated Solar Power plant, Journal of Cleaner Production, 195, 32-43
Manjunath, A., & Gross, G. (2017). Towards a meaningful metric for the quantification of GHG emissions of electric vehicles (EVs), Energy Policy, 102, 423-429.
Moro, A., & Lonza, L. (2018). Electricity carbon intensity in European Member States: Impacts on GHG emissions of electric vehicles, Transportation Research Part D, 64, 5-14
Motorcycle database. (2015). Retrieved January 5, 2021, from https://www.autoevolution.com/moto/
National Energy Technology Laboratory. (2010). Cost and Performance Baseline for Fossil Energy Plants. Retrieved November 18, 2020, from https://www.nrc.gov/docs/ML1327/ML13274A052.pdf
Odeh, N. A., & Cockerill, T. T. (2008a). Life cycle analysis of UK coal fired power plants. Energy Conversion and Management, 49(2), 212-220
Odeh, N. A., & Cockerill, T. T. (2008b). Life cycle GHG assessment of fossil fuel power plants with carbon capture and storage. Energy Policy, 36(1), 367-380.
Orfanos, N., Mitzelos, D., Sagani, A., Dedoussis V. (2019). Life-cycle environmental performance assessment of electricity generation and transmission systems in Greece. Renewable Energy, 139, 1447-1467
Ortiz, P., S., Daniel, F.-O., Oliveira, S., Filho, R.M., Osseweijer, P., & Posada, J. (2020). Unit exergy cost and specific CO2 emissions of the electricity generation in the Netherlands, Energy, 208, 118279
Peng, T., Ou, X., & Yan, X. (2018). Development and application of an electric vehicles life-cycle energy consumption and greenhouse gas emissions analysis model, Chemical Engineering Research and Design, 131, 699-708
Qiao, Q., Zhao, F., Liu, Z., Hao, H., He, X., Przesmitzki, S., V., & Amer, A., A. (2020). Life cycle cost and GHG emission benefits of electric vehicles in China. Transportation Research Part D, 86, 102418.
Qiao, Q., Zhao, F., Liu, Z., He, X., & Hao, H. (2019). Life cycle greenhouse gas emissions of Electric Vehicles in China: Combining the vehicle cycle and fuel cycle. Energy, 177, 222-233.
Qiao, Q., Zhao, F., Liu, Z., Jiang, S., & Hao, H. (2017). Comparative Study on Life Cycle CO2 Emissions from the Production of Electric and Conventional Vehicles in China, Energy Procedia, 105, 3584-3595.
Ruether, J. A., et al. (2004). “Greenhouse gas emissions from coal gasification power generation system.” Journal of Infrastructure System 10(3): 111-119.
Shulga, R. N., Putilova, I. V., Smirnova, T. S., Ivanova, N . S. (2020). Safe and waste-free technologies using hydrogen electric power generation, International Journal of Hydrogen Energy, 45, 34037-34047
Solomin, E., Kirpichnikova, I., Amerkhanov, R., Korobatov, D., Lutovats, M., Martyanov, A. (2019). Wind-hydrogen standalone uninterrupted power supply plant for all-climate application, International Journal of Hydrogen Energy, 44, 3433-3449
Spath, P.L. & Mann, M.K. (2000). Life cycle assessment of natural gas combined cycle power generation system, National Renewable Energy Lab, Golden, CO(US).
Stoppato, A. (2008). Life cycle assessment of photovoltaic electricity generation. Energy, 33(2), 224-232.
Teixeira, A.C.R., & Sodré, J.R. (2018). Impacts of replacement of engine powered vehicles by electric vehicles on energy consumption and CO2 emissions, Transportation Research Part D, 59, 375-384
Timmerberg, S., Sanna, A., Kaltschmitt, M., & Finkbeiner, M. (2019). Renewable electricity targets in selected MENA countries – Assessment of available resources, generation costs and GHG emissions, Energy Reports, 5, 1470-1487.
Turconi, R., Boldrin, A., Astrup, T. (2013). Life cycle assessment (LCA) of electricity generation technologies: Overview, comparability and limitations, Renewable and Sustainable Energy Reviews, 28, 555-565
UNFCCC. (2020). Kyoto Protocol. Retrieved November 18, 2020, from https://unfccc.int/kyoto_ptotocol
UNFCCC. (2020). Paris Agreement. Retrieved November 18, 2020, from https://unfccc.int/process-and-meetings/the-paris-agreement
Verán-Leigh, D., & Vázquez-Rowe, I. (2019). Life cycle assessment of run-of-river hydropower plants in the Peruvian Andes: a policy support perspective. The International Journal of Life Cycle Assessment, 24(8), 1376-1395.
Wang, L., Wang, Y., Du, H., Zuo, J., Li, R.Y.M., Zhou, Z., & Garvlehn, M.P. (2019). A comparative life-cycle assessment of hydro-, nuclear and wind power: A China study. Applied Energy, 249, 37-45.
Weber, N.A.B., Rocha, B.P., Schneider, P.S.,Daemme, L.C., & Neto, R.A.P. (2019). Energy and emission impacts of liquid fueled engines compared to electric motors for small size motorcycles based on the Brazilian scenario, Energy, 168, 70-79.
Weisser, D. (2013). A guide to life-cycle greenhouse gas (GHG) emissions from electric supply technologies, Energy, 32, 1543-1559
WMO. (2020). THE GLOBAL CLIMATE IN 2015–2019. Retrieved November 18, 2020, from https://library.wmo.int/doc_num.php?explnum_id=10251
Wu, P., Ma, X., Ji, J., & Ma, Y. (2017). Review on Life Cycle Assessment of Energy Payback of Solar Photovoltaic Systems and a Case Study. Energy Procedia, 105, 68-74.
Zhao, X., Liu, S., Yan, F., Yuan, Z., Liu, Z. (2017). Energy conservation, environmental and economic value of the wind power priority dispatch in China, Renewable Energy, 111, 666-675
中文文獻
Gogoro. (2020). Retrieved November 18, 2020, from https://www.gogoro.com/tw
KYMCO. (2020). Retrieved November 18, 2020, from https://www.kymco.com.tw/
SYM. (2020). Retrieved November 18, 2020, from https://tw.sym-global.com/
YAMAHA. (2020). Retrieved November 18, 2020, from https://www.yamaha-motor.com.tw/index.aspx
中崗科技有限公司. (2020). SimaPro. Retrieved November 18, 2020, from http://www.ixon.com.tw/Products/simapro/simapro.htm
交通部. (2017). 機車使用狀況調查報告. Retrieved Dec. 18, 2020, from https://www.motc.gov.tw
交通部. (2019). 機車使用狀況調查報告. Retrieved Dec. 18, 2020, from https://www.motc.gov.tw
交通部. (2019). 運輸研究所運具別排放清冊. Retrieved Dec. 18, 2020, from https://www.iot.gov.tw/mp-1.html
交通部. (2020). 機車車輛登記數. Retrieved Dec. 18, 2020, from https://stat.motc.gov.tw/mocdb/stmain.jsp?sys=100&funid=a3301
行政院農業委員會. (2010). Retrieved January 5, 2021, from https://www.coa.gov.tw/ws.php?id=2445342&print=Y
行政院. (2017). 2035年禁售燃油機車. Retrieved January 5, 2021, from https://www.ey.gov.tw/Page/9277F759E41CCD91/6069b150-7637-48ca-8c7b-c7559213d3e9
行政院. (2019). 車量耗能. Retrieved January 5, 2021, from https://auto.itri.org.tw/energy_efficiency_mark_ecar.aspx
吳宗翰. (2010). 利用生命週期理論評析燃煤電廠溫室氣體排放量之研究, 淡江大學水資源及環境工程學系碩士班學位論文
曾詠恩. (2006). 台灣地區風力發電之潛力分析與生命週期評估, 國立台北大學自然資源與環境管理所碩士論文.
經濟部能源局. (2019). 我國燃料燃燒二氧化碳排放統計與分析. Retrieved November 18, 2020, from https://www.moeaboe.gov.tw/ECW/populace/content/wHandMenuFile.ashx?file_id=7272
經濟部能源局. (2020). 我國燃料燃燒二氧化碳排放統計與分析. Retrieved November 18, 2020, from https://www.moeaboe.gov.tw/ECW/populace/content/wHandMenuFile.ashx?file_id=7272
台灣車輛工業同業公會. (2020). 產銷統計. Retrieved March 18, 2021, from https://www.ttvma.org.tw/statistics
臺灣電力公司. (2020). 臺電系統歷年發購電量. Retrieved November 18, 2020, from https://www.taipower.com.tw/tc/chart/
環保署. (2015) 國家自定預期貢獻(Intended Nationally Determined Contribution, INDC). Retrieved November 18, 2020, from https://reurl.cc/YWNqQD
環保署. (2015). 溫 室 氣 體 減 量 及 管 理 法. Retrieved November 18, 2020, from https://www.epa.gov.tw/lp.asp?ctNode=34546&CtUnit=2525&BaseDSD=7&mp
環保署. (2020). 溫室氣體排放統計. Retrieved November 18, 2020, from https://www.epa.gov.tw/Page/81825C40725F211C/6a1ad12a-4903-4b78-b246-8709e7f00c2b%E3%80%80