在预测领域，灰色系统理论使用的是GM(1,1)模型。

GM (1, 1) model of Grey System Theory is used in prediction realm.

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灰色理论在水位预测方面通常采用GM(1,1)模型进行预测。

In the water level prediction, the GM (1, 1) model is commonly adopted in the grey theory.

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并用灰色预测理论对该系统现有的年用电量时间数据序列进行处理，进而建立了GM（1，1）预测数学模型，最后提供了预测实例。

Time data sequence on existing annual power consumption are dealt with by using principles of grey production, thus establishing GM(1, 1) grey model. Finally, a example is given.

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