[en] The long-term forecast assessing the role of electric power in the power and fuel balance of Czechoslovakia shows that the highest rate of growth should be expected in the field of nuclear energy and in the consumption of electric power. The development of nuclear power is giving rise to a number of problems such as the rapid increase of capital costs, the load factor reduction of coal fired power plants, etc. The problem areas are defined to which attention should be paid in the development of nuclear power. The use of electric power for heating and for heating utility water favourably affects the form of the diagram of daily consumption. Analyses show that the growth of consumption of electric power may be threatened by problems in the distribution network. (Ha)