[en] At the present, Peru has an installed electricity capacity of 4112 MW from which the 80% comes from hydroelectric sources and other 20% from thermal sources. Lima city concentrates the larger industrial activities and uses 95% of the hydro-electric supply the 5% comes from thermal origin. This situation provokes an energetic vulnerability to Lima, a city with more them 10 million of inhabitants, because climatic changes and the electric towers destruction. In the 1989-1992 period lack of energy meant economic losses for about US$ 2 100 000. To solve this problem the government is building a 300 MW thermal station. This alternative means a low investment for Kw installed but high production costs. Additionally the installation of the plant in Lima will increase the environmental contamination due to emission of about 20000 TM/year of SOx and 7500 TM/year of NOx. The research study recommends as a solution the diversification of energy sources, avoiding dependence of the hydro-electrical ones. In the same form it suggests that the next 300 MW power station to be installed for about 1998 would be a nuclear power plant but not thermal one. It also makes a revision of the new designs for nuclear power plants called safe inherently which design and construction philosophy avoid the possibility of accidents like Chernobyl. (author). 15 refs., 5 tabs., 13 figs