Research on cost analysis and competitiveness of power generation units under the influence of carbon market and power market coupling mechanism

doi:10.12006/j.issn.1673-1719.2020.160

Abstract

Abstract:

Carbon market and power market will jointly play a decisive role in the optimal allocation of resources and bring challenges to the operation and development of the market subject, i.e. the power generation enterprises. Based on the economic impact model of power generation enterprises considering the carbon cost, the impact of different development stages of carbon market on the electricity cost of power generation enterprises was quantitatively analyzed, and the economy of investment income of different energy structure and the impact on clearing order of centralized bidding market was quantitatively evaluated. The results show that as the paid quota allocation proportion and carbon price increase, the proportion of carbon cost in the total cost per kilowatt hour gradually rises. The carbon cost of coal-fired units accounts for 29% of the total cost per kilowatt hour, and the proportion of gas-fired units accounts for 6% of the total cost per kilowatt hour. The carbon market will promote the investment tendency to clean and efficient thermal power units and renewable energy gradually, and affect the clearing order of generating units, so as to further consolidate the high-efficiency and low-emission units competitiveness in the centralized bidding market.

Key words: Climate change, Carbon market, Power market, Carbon cost, Electricity cost, Clearing order

SUN You-Yuan, GUO Zhen, ZHANG Ji-Guang, QIN Ya-Qi. Research on cost analysis and competitiveness of power generation units under the influence of carbon market and power market coupling mechanism[J]. Climate Change Research, 2021, 17(4): 476-483.

Figures/Tables 5

Table 1 Quota allocation benchmark of the national carbon emission trading market

Table 2 Characteristic parameters of coal-fired and gas-fired units

Fig. 1 Carbon cost at different quota auction proportions and carbon prices

Fig. 2 Per kilowatt hour cost (a) and profit (b) of different power supply types

Fig. 3 Clearing order of generator considering the impacts of carbon market

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