SH (service hours)

Analyses the electricity price against the return rate, operating hours and coal price of a foreign funded thermal power plant by grey correlation analysis, and proves through actual calculations that coal price is most closely correlated with electricity price, and operating hours has comparatively less effect on electricity price.

用灰色关联分析法对外资热电厂电价与回报率、运行小时数、煤价进行分析，通过实际计算证明煤价与电价的关联度最大，而年运行小时数对电价的影响相对较小。