How Price-Based Frequency Regulation Impacts Stability in Power Grids: A Complex Network Perspective

Figure 4

Stability and decarbonization of the CSG. Single-node stability on the China Southern Power Grid (nodes’ type is shown in supplementary table S1, and edges are listed in supplementary table S2). The two pie charts show the percentage of the three kinds of generator plants before and after improving the economic efficiency of hydropower plants by decreasing their from 1 to 0.7 and decreasing thermal from 1 to 0.9. Parameters are the same as in Figure 3 with for thermal plants and for hydroplants.