Transformation of old mill to micro hydro power plant

U radu su opisane hidroelektrane s naglaskom na mikro i male hidroelektrane te njihova uloga u elektroenergetskom sustavu Republike Hrvatske. Navedeni su potrebni koraci koje je potrebno napraviti prije izgradnje male hidroelektrane. Opisana je lokacija i postojeće stanje stare mlinice na rijeci Lonji te je provedena analiza hidroloških uvjeta na lokaciji od interesa. Temeljem rezultata provedene analize i opisa lokacije dimenzionirana je mikro hidroelektrana. Uporabom programskog paketa HOMER, uz dostupne ekonomske pokazatelje i u skladu s tarifnim sustavom za proizvodnju električne energije iz obnovljivih izvora energije, provedena je tehno-ekonomska analiza takve mikro hidroelektrane.In this paper, hydro power plants with a focus on micro and small plants and their role in Croatian electric power system are described. The necessary steps that should be done before construction of small hydropower are listed. The paper describes the location and current state of the old mill on the river Lonja and the analysis of hydrologic conditions at the location of interest. Based on the results of the analysis and description of the site micro hydropower has been designed. Using the program HOMER, with available economic indicators in accordance with the tariff system for electricity production from renewable energy sources, a techno-economic analysis of such micro-hydro power plant was carried out