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<p>Solar photovoltaic (PV) is a key technology for decarbonization. However, these systems cause an environmental impact along their life cycle. Greenhouse gas (GHG) emissions and mitigation from PV have been studied on a world level, with a yearly resolution, concluding that there are significant differences in decarbonization depending on where PV systems are deployed. This study explores the life-cycle GHG mitigation potential in the European Union countries with hourly resolution. The life-cycle GHG mitigation potential from PV can vary from 0.6 t CO<sub>2</sub>e kWp<sup>−1</sup> in Sweden to 18.6 CO<sub>2</sub>e kWp<sup>−1</sup> in Cyprus. Furthermore, a difference between calculating with an hourly and yearly resolution up to 49% is found. Despite this estimation being dependant on future decarbonization scenarios and other limitations, the variation between countries suggest that these results could be used as a decision-making tool to prioritize PV deployment in regions with higher mitigation potential.</p>

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Greenhouse gas mitigation potential of solar photovoltaics: a highly variable indicator within the European Union

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年6月3日

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  • Santiago Valencia G.,
  • Joakim Munkhammar,
  • Andreas Theocharis,
  • Xingxing Zhang

摘要

Solar photovoltaic (PV) is a key technology for decarbonization. However, these systems cause an environmental impact along their life cycle. Greenhouse gas (GHG) emissions and mitigation from PV have been studied on a world level, with a yearly resolution, concluding that there are significant differences in decarbonization depending on where PV systems are deployed. This study explores the life-cycle GHG mitigation potential in the European Union countries with hourly resolution. The life-cycle GHG mitigation potential from PV can vary from 0.6 t CO2e kWp−1 in Sweden to 18.6 CO2e kWp−1 in Cyprus. Furthermore, a difference between calculating with an hourly and yearly resolution up to 49% is found. Despite this estimation being dependant on future decarbonization scenarios and other limitations, the variation between countries suggest that these results could be used as a decision-making tool to prioritize PV deployment in regions with higher mitigation potential.