发电技术2026，Vol.47Issue(1)：168-175,8.DOI:10.12096/j.2096-4528.pgt.260115
燃煤电厂电煤能价比指标及其应用
Indicators of Coal-to-Electricity Energy Price Ratio for Coal-Fired Power Plants and Their Applications
摘要
Abstract
[Objectives]Over the past 30 years,the conflict between electricity and coal prices has persisted in China.To straighten out the relationship between coal and electricity prices and to promote the comprehensive,coordinated,and sustainable development of the coal and power industries,it is necessary to establish evaluation indicators and price adjustment formulas for quickly assessing the rationality of electricity and coal prices for coal-fired power plants,so as to provide a new set of indicators for economic decision-making analysis for coal-fired power plants.[Methods]First,the energy value analysis method is applied to investigate and analyze the physical process of converting coal energy into electric energy in coal-fired power plants.Then,the intrinsic relationship between coal and electricity prices is derived through mathematical deduction.Finally,the calculation formulas for indicators such as the coal-to-electricity energy price ratio and for the coal-electricity price linkage are derived.[Results]Indicators such as the critical coal price,critical coal-to-electricity energy price ratio,reasonable coal-to-electricity energy price ratio,reasonable on-grid electricity price,and reasonable coal price are proposed.The reasonable coal-to-electricity energy price ratio for different units ranging from 300 to 1 000 MW is calculated to be 3.68-4.17.[Conclusions]The coal-to-electricity energy price ratio and related indicators provide a new method for power plants and relevant government departments to evaluate the rationality of electricity and coal prices.They can provide a scientific basis for government departments to formulate reasonable on-grid electricity prices,for coal-fired power plants to develop scientific operational strategies,and for plants to set bidding prices.关键词
燃煤电厂/煤价/电价/经济性分析/电煤能价比/发电成本/煤电价格联动Key words
coal-fired power plants/coal price/electricity price/economic analysis/coal-to-electricity energy price ratio/power generation cost/coal-electricity price linkage分类
能源科技引用本文复制引用
周祎力,戴小云,周锡元,陈国年..燃煤电厂电煤能价比指标及其应用[J].发电技术,2026,47(1):168-175,8.基金项目
新力集团科技项目(AQGL-1818951-1-A1).Project Supported by Xinli Group Science and Technology Project(AQGL-1818951-1-A1). （AQGL-1818951-1-A1）
