Energy infrastructure transitions with PV and EV combined systems using techno-economic analyses for decarbonization in cities

Soowon Chang, Junyoung Cho, Jae Heo, Junsuk Kang and Takuro Kobashi

Applied Energy, 2022, vol. 319, issue C, No S0306261922006122

Abstract: Rooftop photovoltaics (PV) and electric vehicles (EVs), and their combinations are highly effective technologies to decarbonize urban energy systems in a cost-effective way. However, it is not yet clear how these technologies can contribute to decarbonizing urban energy systems that are different in forms, building types, climate, culture, technical, and regulatory conditions. Therefore, we investigated the decarbonization potential of rooftop PV combined with EVs as batteries (“PV + EV”) in five cases in Korea; four cities, and one province, from 2019 to 2030 using techno-economic analysis. We evaluated the energy, economic, and environmental performance of rooftop PV and EVs for the five built forms in Korea and different building types in Seoul. In addition, technical and regulatory variables (e.g., EV efficiency, feed-in-tariff, etc.) are optimized for multiple performances. The “PV + EV” system has been found to reduce CO2 emissions by up to 86% and energy costs by up to 51% within cities in Korea. In particular, residential buildings are found to have better performance in all aspects than those of other building types. This research provides governments and industries with urban decarbonization strategies and supports prioritization of the investment in suitable building types for the “PV + EV” system in a city.

Keywords: Techno-economic analysis; Solar energy; Electric vehicle; Vehicle to building; City decarbonization strategy; Energy infrastructure transition (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (13)

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DOI: 10.1016/j.apenergy.2022.119254

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