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The effect of electricity time-of-use plans: Evidence from the industrial sector in China

Lingfang Li, Jiehong Qiu and Gang Fang

China Economic Review, 2025, vol. 91, issue C

Abstract: Time-of-use (TOU) pricing plans are crucial energy market mechanisms implemented worldwide. Using a staggered difference-in-differences research design and hourly electricity data from industrial customers, this study goes beyond simply assessing the effectiveness of TOU pricing. It investigates under which circumstances TOU pricing may effectively contribute to peak shaving and valley filling. Our results indicate that high-peak-price TOU pricing may induce peak-shaving effects for both large- and small-scale industrial customers but does not lead to valley filling. Conversely, low-peak-price TOU pricing increases electricity consumption among large-scale industrial customers, regardless of whether it is a peak or valley period. In terms of expenditure, the shift from a flat rate to TOU pricing is associated with a 1.7 % reduction in monthly electricity costs for large-scale industrial customers. Furthermore, high-peak-price TOU pricing significantly improves demand stability, leading to a 4.7 % reduction in the peak-to-valley load ratio.

Keywords: TOU; Electricity; Staggered DID; Two-way fixed effects; Power grid (search for similar items in EconPapers)
JEL-codes: Q41 Q48 (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chieco:v:91:y:2025:i:c:s1043951x25000483

DOI: 10.1016/j.chieco.2025.102390

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China Economic Review is currently edited by B.M. Fleisher, K. X. D. Huang, M.E. Lovely, Y. Wen, X. Zhang and X. Zhu

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