Understanding Hourly Electricity Demand: Implications for Load, Welfare and Emissions
利用瑞典家庭每小时用电数据，研究强制动态定价对负荷、福利和碳排放的影响，发现负荷变化小于1%，福利和碳排放减少分别小于0.2%和0.47%。
n this study, using hourly data from a representative sample of Swedish households on standard tariffs, we investigate the welfare and emission implications of moving to a mandatory dynamic pricing scheme. We allow demand during different hours of a day to affect utility differently, and account for the derived nature of electricity demand by explicitly accounting for the services (end-use demands) that drive hourly electricity demand. We use the flexible Exact Affine Stone Index (EASI) demand system, which accommodates both observed and unobserved heterogeneity in preferences, to understand changes in load consequent to hourly retail pricing. Our findings suggest that, following hourly retail pricing, changes in load patterns across hours are relatively small: total load changes by less than one percent. There are correspondingly small reductions in welfare and carbon emissions, of less than 0.2 percent and 0.47 percent, respectively. Overall, in the context of a decentralized, competitive retail electricity market-setting, our results suggest that the benefits to ensuring that the retail price of electricity reflects the hourly marginal cost is small, at least in the short run.