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Sustainability 2018, 10(2), 348; https://doi.org/10.3390/su10020348

Economic Decision-Making for Coal Power Flexibility Retrofitting and Compensation in China

1
School of Physics & Electronic-Electrical Engineering, Ningxia University, Yinchuan 750021, China
2
School of Economics and Management, North China Electric Power University, Beijing 102206, China
3
Beijing Key Laboratory of New Energy and Low-Carbon Development, North China Electric Power University, Changping, Beijing 102206, China
*
Authors to whom correspondence should be addressed.
Received: 2 November 2017 / Revised: 26 January 2018 / Accepted: 26 January 2018 / Published: 29 January 2018
(This article belongs to the Section Energy Sustainability)
Full-Text   |   PDF [1767 KB, uploaded 29 January 2018]   |  

Abstract

In China, in order to integrate more renewable energy into the power grid, coal power flexibility retrofitting is imperative. This paper elaborates a generic method for estimating the flexibility potential from the rapid ramp rate and peak shaving operation using nonlinear programming, and defines three flexibility elastic coefficients to quantify the retrofitted targets. The optimized range of the retrofitted targets determined by the flexibility elastic coefficients have a reference significance on coal power flexibility retrofitting. Then, in order to enable economic decisions for coal power flexibility retrofitting, we address a profit maximizing issue regarding optimization decisions for coal power flexibility retrofitting under an assumption of perfect competition, further analyzing the characteristic roots of marginal cost equal to marginal revenue. The rationality of current compensation standards for peak shaving in China can also be judged in the analysis. The case study results show that economic decision-making depends on the compensation standard and the peak shaving depth and time. At a certain peak shaving depth and time, with rational compensation standard power plants are willing to carry out coal power flexibility retrofitting. The current compensation standard in Northeast China is high enough to carry out coal power flexibility retrofitting. These research conclusions have theoretical significance for China’s peak shaving compensation standards formulation. View Full-Text
Keywords: flexibility retrofitting; flexibility elastic coefficients; economic decision-making; compensation standard flexibility retrofitting; flexibility elastic coefficients; economic decision-making; compensation standard
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Na, C.; Yuan, J.; Zhu, Y.; Xue, L. Economic Decision-Making for Coal Power Flexibility Retrofitting and Compensation in China. Sustainability 2018, 10, 348.

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