SMALL HYDROPOWER PLANT SCHEME IN THE WATER SUPPLY SYSTEM

Raziskali smo potencial proizvajanja električne energije v vodovodnem sistemu z izgradnjo male hidroelektrarne v razbremenilniku. Cilj magistrskega dela je proučiti energetsko in hidravlično zasnovo postavitve male hidroelektrarne v vodovodni sistem ter določiti elektroenergetski potencial v sistemu Mariborskega vodovoda. Predstavljeni so preračuni pričakovane moči male hidroelektrarne, letnega donosa prodaje električne energije in obseg gospodinjstev, ki bi se lahko oskrbovala s pridobljeno energijo. Ugotovili smo, da opisana tehnologija ne povzroča okoljskih vplivov, saj se uporabi obstoječa ali predvidena infrastruktura, izkoriščajo pa se le zajete količine vode za potrebe oskrbe s pitno vodo. Rezultati raziskave so pokazali, da bi bilo mogoče na obravnavanih razbremenilnikih v enem letu pridobiti od 9 do 39 MWh električne energije, z njo bi lahko oskrbovalo od 2 do 11 gospodinjstev. Največ energije bi bilo mogoče pridobiti na način, da se večje naselje napaja z višje ležečega zajetja, zato bi bilo smiselno že v zasnovi vodovodnih sistemov načrtovati male hidroelektrarne v razbremenilnikih.The thesis is based on the study of electricity production in the water supply system with the construction of a small hydropower plant in discharger. The aim of the master thesis is to examine the energy and hydraulic concept of small hydropower plant scheme integrated in a water supply system and to analyze the energy potential of Maribor water supply system. The estimates are presented of expected power of small hydropower plants, the annual return of electricity sales and number of households that could be provided with the generated electricity. The described technology does not cause environmental impacts, since it is set up in the existing or planned infrastructure, while using only the amount of water that is provided to the water supply users. The analysis of considered dischargers showed that it would be possible to produce from 9 to 39 MWh of electricity in one year, while 2 to 11 households could be supplied with generated electricity. Maximum energy could be obtained, if a large town was supplied from a higher lying reservoir, so it would be reasonable to plan small hydropower plants in dischargers while planning the concept of water supply systems