[en] The most important knowledge is presented obtained from the draft prognosis of the long-term development of the economics of the fuel and energy base of Czechoslovakia up to the year 2000 and in some aspects, including the generation of electric power, up to the year 2030. The proportion is assessed of electric power and heat generated in nuclear power plants and in heating plants. The forecast is presented of the extraction of fuels and the generation of electric power, their import and export and their investment and overall economic demand. The evaluation of the forecast indicates the necessity of reducing the fuel and power demand of the Czechoslovak national economy. (Ha)