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The incentive to invest in thermal plants in the presence of wind generation

机译:在风力发电的情况下投资热电厂的动力

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摘要

In a deregulated market, the decision to build new thermal power plants rests with private investors and they will decide whether to invest on the basis of expected profits. This paper evaluates how such profits are affected by the increasing presence of wind generation. We use hourly historical data for the Irish Single Electricity Market, a compulsory pool market with capacity payments, and simulate future series of electricity shadow prices, bids of representative plants and wind generation. We estimate the correlation between shadow price and installed wind capacity on the basis of past data, finding a negative correlation. We then evaluate the effects of increased wind capacity on thermal power plants' expected profits. We find that increasing installed wind from the current level of 2000MW to about 3000MW causes a larger decrease in profits for baseload gas plants and a smaller decrease for less flexible coal-fuelled plants. The decrease in profits is of the order of 1 to 2 per cent.
机译:在放松管制的市场中,建造新热电厂的决定权在于私人投资者,他们将根据预期利润来决定是否进行投资。本文评估了越来越多的风力发电如何影响此类利润。我们使用每小时的历史数据获取爱尔兰单一电力市场(这是一个具有容量支付的强制性联合市场),并模拟未来的电力影子价格系列,代表性电厂的投标和风力发电。我们根据过去的数据估算影子价格与装机容量之间的相关性,发现为负相关。然后,我们评估风能增加对火电厂预期利润的影响。我们发现,装机风能从目前的2000MW增加到大约3000MW,会导致基本负荷燃气电厂的利润下降幅度较大,而对于灵活性较差的燃煤电厂,利润下降幅度较小。利润下降约1-2%。

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