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An environmental Life Cycle Assessment of rooftop solar in Bangkok, Thailand

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  • Eskew, John
  • Ratledge, Meredith
  • Wallace, Michael
  • Gheewala, Shabbir H.
  • Rakkwamsuk, Pattana

Abstract

This study quantifies the environmental burdens created by a planned rooftop photovoltaic (PV) solar installation on a university campus in Bangkok, Thailand, and models the potential of rooftop solar to meet the country’s renewable energy goals. Impacts are evaluated using Life Cycle Assessment and recommendations made for upstream purchasing decisions according to different scenarios. Results indicate that main contribution to impacts occurs in manufacturing by stage and from PV modules by component. Impacts generated by the mounting structure and inverters are also significant, and together these components constitute over 90% of environmental burdens. A climate change impact of 0.079 kg CO2-eq/kWh is produced over the lifetime of the system. Energy Payback Time is calculated as 2.5 years, and the Economic Payback Period is 7.4 years. The system is estimated to avoid 1.00E+06 kg CO2-eq over its lifetime. Installation of similar rooftop PV systems on 50% of university and government buildings in Bangkok could result in a net reduction of 4.80E+09 kg CO2-eq. Domestic production of components and recycling of materials is identified as a best-case scenario, with alleviations across all impact categories. Economic analysis suggests on-site electricity consumption paired with a net-metering policy scheme is the best way to incentivize PV solar energy installations.

Suggested Citation

  • Eskew, John & Ratledge, Meredith & Wallace, Michael & Gheewala, Shabbir H. & Rakkwamsuk, Pattana, 2018. "An environmental Life Cycle Assessment of rooftop solar in Bangkok, Thailand," Renewable Energy, Elsevier, vol. 123(C), pages 781-792.
    • Handle: RePEc:eee:renene:v:123:y:2018:i:c:p:781-792
    DOI: 10.1016/j.renene.2018.02.045
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    References listed on IDEAS

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    1. Kittner, Noah & Gheewala, Shabbir H. & Kammen, Daniel M., 2016. "Energy return on investment (EROI) of mini-hydro and solar PV systems designed for a mini-grid," Renewable Energy, Elsevier, vol. 99(C), pages 410-419.
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    Cited by:

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    2. Suntiti Yoomak & Theerasak Patcharoen & Atthapol Ngaopitakkul, 2019. "Performance and Economic Evaluation of Solar Rooftop Systems in Different Regions of Thailand," Sustainability, MDPI, vol. 11(23), pages 1-20, November.
    3. Victor Kouloumpis & Antonios Kalogerakis & Anastasia Pavlidou & George Tsinarakis & George Arampatzis, 2020. "Should Photovoltaics Stay at Home? Comparative Life Cycle Environmental Assessment on Roof-Mounted and Ground-Mounted Photovoltaics," Sustainability, MDPI, vol. 12(21), pages 1-15, November.
    4. Qi, Xiaoyan & Yao, Xilong & Guo, Pibin & Han, Yunfei & Liu, Lin, 2024. "Applying life cycle assessment to investigate the environmental impacts of a PV–CSP hybrid system," Renewable Energy, Elsevier, vol. 227(C).
    5. Costa, Vinicius B.F. & Capaz, Rafael S. & Silva, Patrícia F. & Doyle, Gabriel & Aquila, Giancarlo & Coelho, Éden O. & de Lorenci, Eliane & Pereira, Lígia C. & Maciel, Letícia B. & Balestrassi, Pedro P, 2022. "Socioeconomic and environmental consequences of a new law for regulating distributed generation in Brazil: A holistic assessment," Energy Policy, Elsevier, vol. 169(C).
    6. Mehedi, Tanveer Hassan & Gemechu, Eskinder & Kumar, Amit, 2022. "Life cycle greenhouse gas emissions and energy footprints of utility-scale solar energy systems," Applied Energy, Elsevier, vol. 314(C).
    7. Krebs-Moberg, Miles & Pitz, Mandy & Dorsette, Tiara L. & Gheewala, Shabbir H., 2021. "Third generation of photovoltaic panels: A life cycle assessment," Renewable Energy, Elsevier, vol. 164(C), pages 556-565.
    8. Junedi, M.M. & Ludin, N.A. & Hamid, N.H. & Kathleen, P.R. & Hasila, J. & Ahmad Affandi, N.A., 2022. "Environmental and economic performance assessment of integrated conventional solar photovoltaic and agrophotovoltaic systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 168(C).
    9. Olivieri, Lorenzo & Caamaño-Martín, Estefanía & Sassenou, Louise-Nour & Olivieri, Francesca, 2020. "Contribution of photovoltaic distributed generation to the transition towards an emission-free supply to university campus: technical, economic feasibility and carbon emission reduction at the Univers," Renewable Energy, Elsevier, vol. 162(C), pages 1703-1714.

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