A crucial and challenging part of the worldwide energy transition from fossil fuels to renewable energy is the decarbonization of the power sector. As governments struggle to pass politically feasible, emission-reducing policies that align with other national and international goals, empirical studies can provide insights for policymakers on the question of whether various approaches to combating climate change have effectively contributed to reducing CO₂ emissions. This paper investigates the effect of several key climate policies that governments have implemented in order to reduce CO₂ emission intensity in the power sector; used in this analysis are newly constructed panel data on 34 OECD countries and the 5 BRICS countries that range from 2000 to 2018. The main findings of this paper suggest that, despite a strong theoretical foundation, the market-based policy tested in this analysis does not display a significant negative effect on CO₂ emission intensity. Technological innovation support-policies and deployment-support policies such as feed-in tariffs for wind power production correlate negatively with CO₂ emission intensity. Feed-in tariffs for solar PV and public environmental R&D expenditure do not indicate a significant effect on emission intensity.

从化石燃料到可再生能源的全球能源转型的一个关键和具有挑战性的部分是电力部门的脱碳。随着政府努力通过与其他国家和国际目标一致的政治上可行的减排政策，实证研究可以为政策制定者提供有关应对气候变化的各种方法是否有效地有助于减少 CO ₂排放的见解。本文调查了政府为减少 CO ₂而实施的几项关键气候政策的效果。电力部门的排放强度；本分析使用的是 2000 年至 2018 年 34 个 OECD 国家和 5 个金砖国家的新构建的面板数据。 本文的主要发现表明，尽管具有强大的理论基础，但本分析测试的市场政策确实对CO ₂排放强度没有显示出显着的负面影响。风电生产上网电价等技术创新支持政策和部署支持政策与CO ₂排放强度呈负相关。太阳能光伏上网电价和公共环境研发支出对排放强度没有显着影响。