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臺灣能源期刊論文全文

臺灣能源期刊第5卷第3期內容

出刊日期:September, 2018

題目
電動車的發展對我國電網級儲能系統之影響
Title
The Impaction of the Development of Electric Vehicle on Grid-Level Energy Storage System in Taiwan
作者
黃郁青、陳治均、葛復光
Authors
Yu-Ching Huang, Jyh-Jun Chen, Fu-Kung Ko
摘要
為減緩傳統化石燃料造成的環境汙染,近年來政府積極推動使用節能車輛,節能車輛以電動車發展較快,目前已受到世界各國的重視,電動車成本的關鍵在於車用電池,然而國內外的研究機構對於車用電池價格的推估差異甚大。因此,本研究設計參考情境、保守情境及積極情境,利用TIMES (The Integrated MARKAL-EFOM System)模型分析評估車用鋰電池成本的差異對於電動車發展的影響,以及評估車用鋰電池以V2G (Vehicle-to-Grid)充電站的形式應用於電網儲能,對電網級儲能系統發展之影響。分析顯示參考情境在無減碳壓力下,模型選擇以傳統火力為主之電力結構,使得電動車的減碳效果不佳,儲能的發展也受限,保守情境顯示電網級儲能以鋰電池發展較快,液流電池藉由提高蓄電量可提前至2025年與鋰電池同時發展,樂觀情境顯示,當鋰電池成本快速下降,電動機車與電動大客車將提前至我國中期發展,液流電池發展亦因此受限,並須進一步提高能量密度進而降低能量成本以提高其競爭力。本文對於電動車以及電網級儲能的發展亦提出相關建議。
關鍵字
電動車,碳排放,能源服務需求,儲能系統
Abatract
In order to reduce environmental pollution caused by traditional fossil fuels, the government is actively to promote the use of EEVs (Energy Efficient Vehicles). The development of electric vehicles is most rapidly among EEVs and has attracted the attention all over the world. The key part of electric vehicles is battery whereas the research institutions all over the world have great differences in the estimation of vehicle battery prices. Therefore, this study designs reference case scenario, conservative scenario and positive scenario, and uses TIMES (The Integrated MARKAL-EFOM System) model to simulate the influence of differences in the cost of lithium batteries for vehicles and evaluate the influence of grid-level energy storage systems when lithium batteries apply in the form of V2G (Vehicle-to-Grid) for grid. Reference case scenario shows that regardless of carbon reduction, TIMES model chooses power mix dominated by fossil-fired plants, resulting in the effect on carbon emission reduction from electric vehicles is limited, and the development of grid-level energy storage system is also limited. Conservative scenario shows that lithium batteries will develop faster, and flow batteries can develop simultaneously with lithium batteries in 2025 by increasing the amount of stored electricity. Positive scenario shows that when the cost of lithium batteries drops rapidly, electric motorcycles and electric buses will develop in mid-term in Taiwan, and the development of flow batteries will be limited. It is recommended that the energy density of flow batteries should be improved, so that energy cost will be reduced to improve competitiveness. Suggestions for the development of electric vehicles and grid-level energy storage in our country are also addressed in this study.
Keywords
Electric Vehicle, Carbon Emission, Energy Service Demand, Energy Storage System