配额制与碳税对可再生能源投资量决策影响的研究

Impact of Renewable Portfolio Standard and Carbon Tax Policy on the Renewable Energy Investment

【目的/意义】针对可再生能源配额制(“配额制”)和碳税对可再生能源投资量影响的问题,构建了由发电商和售电商组成的电力供应链模型,考虑了可再生能源间歇性的特征,识别了配额制和碳税政策对可再生能源投资决策的影响。【设计/方法】基于博弈理论框架,识别了可再生能源比例和投资成本系数对均衡解的影响,比较不同政策的均衡解,最后提出建议。【结论/发现】当可再生能源比例较小时,配额制政策将投资更多的可再生能源和生产更多的电力需求量,而当可再生能源比例较高时,碳税政策将投资更多的可再生能源和生产更多的电力需求量;随着可再生能源比例的增加,可再生能源投资量和电力需求量均减少;随着可再生能源投资成本系数的增加,可再生能源投资量和电力需求量均减少。

[Purpose/Signficance]This paper focuses on the impact of Renewable Portfolio Standard(RPS)and carbon tax policy on investment of renewable energy.Thus,this paper constructs an electricity supply chain model with an electricity retailer as the leader and an electricity generator as the follower to identify the impact of the two carbon policies on the investment of renewable energy considering the intermittence of renewable energy.[Design/Methodology]Based on the game theory framework,the effects of renewable energy proportion and investment cost coefficient on the equilibrium solution are identified,and the equilibrium solutions of the two carbon policies are compared.Finally,some suggestions are put forward.[Findings/Conclusions]When the proportion of renewable energy is small,RPS is more conducive to increasing the renewable energy investment and electricity demand;when the proportion of renewable energy is high,the carbon tax policy is more conducive to increasing the renewable energy investment and electricity demand.With the increase of the proportion of renewable energy,both renewable energy investment and electricity demand decrease.With the increase of the cost coefficient of renewable energy investment,both renewable energy investment and electricity demand decrease.