In the following save game of the Earth 1000AD scenario (using no mods), I found that my cities suffered the 2
penalty for using a coal plant for power, but after building the 3 Gorges Dam, they still had that penalty. In Warlords the penalty went away once the city got a clean source of power. I also tried building a hydro plant, such as in Satlzburg (city located near Germany), but that did not remove the unhealthiness either. Even in cities with no power plants, such as Marseilles (France), there was still a 2
penalty.

