Basic geological features to the design of a hydroelectric power system along the liver Sava in Slovenia

Abstract

In the urbanized and industrialized Sava Valley of Slovenia no one large storage lake can be impounded. Ever increasing requirements for energy suggest the construction of an hydroelectrical system consisting of 16 dams of small volume contents following one another in corresponding sequence imposed by geological, technical and environmental conditions. In the interval from Tacen near Ljubljana to Mokrice at the Slovene- Croatian border the following dams using low head are under design: Tacen, Ježica, Šentjakob, Zalog, Jevnica, Kresnice, Ponoviče, Renke, Trbovlje, Suhadol, Vrhovo, Boštanj, Blanca, Krško, Brežice and Mokrice. The author considers the nature of the fundations on which it is proposed to build the dams, power houses, headwater and spillway channels. Attention is given to take under protection the existing highway and railway lines, industries, settlements and their water supply in connection with a higher underground water table.