It’s commonplace. We can’t imagine our lives without electricity. Let’s look at its production in the Poříčí coal power plant. To what extent is it run, like our other coal power plants, in accordance to the rules of environmental protection? Does the technology and parameters for lowering emissions of substances that pollute the air correspond to the current best technologies recommended by the EU? The greatest event in the modern history of the Czech coal power industry was the “cleaning” of power plants, i.e. the introduction in all coal energy sources of such a technical condition that would exclude further devastation of the environment.