Estimation of productivity in Korean electric power plants : a semiparametric smooth coefficient model

Heshmati, A; Kumbhakar, SC; Sun, K

Abstract

This paper analyzes the impact of load factor, facility and generator types on the productivity of Korean electric power plants. In order to capture important differences in the effect of load policy on power output, we use a semiparametric smooth coefficient (SPSC) model that allows us to model heterogeneous performances across power plants and over time by allowing underlying technologies to be heterogeneous. The SPSC model accommodates both continuous and discrete covariates. Various specification tests are conducted to assess the performance of the SPSC model. Using a unique generator level panel dataset spanning the period 1995–2006, we find that the impact of load factor, generator and facility types on power generation varies substantially in terms of magnitude and significance across different plant characteristics. The results have strong implications for generation policy in Korea as outlined in this study.

• Journal Article Type: Article
• Acceptance Date: Aug 20, 2014
• Online Publication Date: Aug 28, 2014
• Publication Date: Sep 1, 2014
• Deposit Date: May 29, 2015
• Publicly Available Date: Oct 10, 2018
• Journal: Energy Economics
• Print ISSN: 0140-9883
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 45
• Pages: 491-500
• DOI: https://doi.org/10.1016/j.eneco.2014.08.019
• Publisher URL: http://dx.doi.org/10.1016/j.eneco.2014.08.019
• Related Public URLs: http://www.journals.elsevier.com/energy-economics/