文献类型：期刊文献

英文题名：Solar surge and cost shifts: Heterogenous effects of redistribution in the electricity bills in Japan

作者：Zhang, Tuo[1];Tang, Maogang[2]

机构：[1]Tohoku Univ, Grad Sch Environm Studies, Aoba Ku,468-1 Aramaki, Sendai, Miyagi 9808572, Japan;[2]East China Univ Sci & Technol, Sch Business, Shanghai 200237, Peoples R China

年份：2024

卷号：137

外文期刊名：ENERGY ECONOMICS

收录：;EI(收录号：20243316863584);WOS:【SSCI(收录号:WOS:001293302600001)】；

基金：This research was supported by the Japan Society for the Promotion of Science (Grant Number: JP22H00572 and JP22K13387), as well as the General Project of the Chinese National Social Science Fund "Land development right transaction, land resource allocation mechanism and high-quality economic development" (Grant number: 21FJYB052).

语种：英文

外文关键词：Solar penetration; Peak Price shifting; Cross-group subsidization; Consumer electricity bills; Pumped hydro storage

摘要：This study investigates the impact of daily intermittency in solar energy on retail electricity bills, focusing on the "Duck Curve" and "Peak Shifting" phenomena and their varying effects on different consumer groups. Notably, commercial and industrial users exhibit higher demand around midday, while residential users peak during morning and evening hours. This prompts a crucial question: do peak shifting and redistribution effects differ among consumer groups due to their distinct electricity consumption patterns? Our analysis centers on Japan's power system, which has witnessed significant solar energy penetration, with solar capacity growing from 42 GW in 2016 to 83 GW in 2022. Utilizing monthly electricity consumption data and employing robustness checks through instrumental variable methods, we empirically demonstrate that increased solar penetration leads to higher electricity prices for residential consumers but reduced costs for commercial-industrial users. Additionally, we uncover the mediating role of pumped hydro storage (PHS) stations in stabilizing prices during peak and off-peak periods by managing energy demand variability, thereby mitigating economic impacts across consumer groups. This study highlights the issue of cross-class subsidization, where certain groups bear disproportionately higher electricity costs due to increased renewable energy penetration. It underscores the necessity for carefully crafted policy interventions to uphold market fairness and sustainability alongside large-scale renewable penetration, ensuring a balanced and equitable energy transition.