Table 2 Detailed simulation results of efficiency change (ΔηSj)

From: Burden on hydropower units for short-term balancing of renewable power systems

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  1. The seven operating points of each HPP are shown in Supplementary Fig. 16. Negative values mean efficiency loss. The bar in each cell is a graphical representation of the value, and the negative and positive values are highlighted by red and blue, respectively. The average values of seven points are selected as the representative results listed in Table 1. The value of “Max–Min” is the difference between the maximum and minimum of the efficiency changes of seven points.