但是新的开采方法相当昂贵，很难与常规电站，特别是燃煤或燃气电站，在财务上竞争。

But the new approaches are expensive, making it difficult to compete financially with conventional electrical plants, notably those that burn coal or gas.

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对IGCC电站机组的设计运行具有重要的指导意义，同时为小容量常规电站改造为100 MW级IGCC电站提供了依据。

The study is a great significance for the design and operation of IGCC unit. At the same time, it provides guiding for the upgrading from a conventional power station to a IGCC power plant.

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另一威胁则是，受到非常规天然气排斥的不仅仅是一批燃煤发电站，还有充满前景的再生能源。

Another danger is that unconventional gas will push aside not just a swathe of coal-fired power stations, but promising renewables, too.

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