engleski

Hydrological analysis of flow variations on SHPP site

The use of renewable energy resources is greatly encouraged by many governments, with aim for achieving sustainability whilst satisfying ever- growing demand for energy consumption. Among the renewable resources of energy in the world, hydro power plants produce the most electric energy. Small hydro power plants (SHPP) partake in overall hydro power production with around 7% of installed power (approx. 50 GW). Of special interest for small hydro power plants are sites where in the past water power and energy was used, particularly from standpoint of environment acceptability and regional and country planning. According to the regulations in the energy sector: “Besides the Croatian national electricity company (HEP), persons, companies and other legal persons can also produce and distribute electric power”. Currently third of the small hydro power plants in Croatia are in private ownership, and trend of private investments is showing continuous growth as investors see possibility for good rate of investment return. Installed power for 95 % of available locations is less than 1 MW. On these watercourses variety of flow conditions can occur which are poorly recorded because of monitoring network scarcity. This paper covers hydrological analysis of the Lika River for location of small hydro power plant Miškulin near the city of Gospić. The Lika River is torrential stream with zero-flow period during dry season and is influenced by considerable backwater from reservoir Kruščica during rainy season. Hydrology at SHPP site is under influence of the Lika River’s four tributary streams. This example illustrates method for analysis of sites under extremely temporally and spatially variable hydrological conditions.

Small hydro power plant ; renewable energy resources ; the Lika River

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