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在煤电市场化过渡阶段,以电煤基准价格(即标煤基准价格)为基础,顺应市场供需变化,允许电煤价格合理波动,考虑火电发电成本和合理的资产报酬率,建立电煤价格模型与上网电价的修正模型,使上网电价与电煤价格之间动态关联,并通过消费者物价指数(consumer price index,CPI)的大小选择终端售电价格的修正路径,既可减小电煤价格波动对经济的影响程度,又可以将成本的波动及时疏导出去。最后通过实例对模型与方法进行了验证,实例分析结果表明该模型与方法是合理的,对缓解中国煤电产业矛盾具有理论与实际意义。
In the transitional phase of market-based coal and electricity, based on the benchmark price of coal (that is, the benchmark coal price), coal supply and demand should be subject to changes in market supply and demand, allowing coal prices to fluctuate reasonably, considering thermal power generation costs and reasonable return on assets, Model and feed-in tariff, a dynamic correlation between feed-in tariff and coal price is adopted, and a revised path of terminal selling price through the size of the consumer price index (CPI) The impact of price fluctuations on the economy, but also the cost of fluctuations in a timely manner to divert them out. Finally, the model and the method are validated by examples. The results of the example analysis show that the model and method are reasonable and have theoretical and practical significance for alleviating the contradiction between the coal and power industries in China.