20.500.12556/RUL-188110 Vrednotenje ekonomske upravičenosti baterijskega hranilnika in sončne elektrarne Evaluation of the economic feasibility of a battery energy storage system and a photovoltaic power plant Diplomska naloga obravnava vrednotenje ekonomske upravičenosti baterijskega hranilnika električne energije (BHEE) v kombinaciji s sončno elektrarno in sistemom za upravljanje energije (EMS). Namen naloge je bil razviti simulacijski model, ki na podlagi dejanskih merilnih podatkov omogoča analizo energetskih tokov ter vrednotenje ekonomskih učinkov različnih strategij delovanja sistema. Model je bil izdelan v programskem jeziku Python in temelji na enoletnih merilnih podatkih v 15-minutnih časovnih intervalih. Upošteva delovanje sončne elektrarne, baterijskega hranilnika električne energije in sistema EMS ter vključuje strategije zmanjševanja konične moči, energetske arbitraže in izrabe viškov sončne elektrarne. Posebna pozornost je namenjena tudi vplivu degradacije baterijskega hranilnika na dolgoročno ekonomiko sistema. Na podlagi simulacije so bili izračunani ključni energetski in ekonomski kazalniki, kot so letni prihranek, število ekvivalentnih ciklov baterijskega hranilnika, vračilna doba investicije, donosnost investicije (ROI) ter neto dobiček v življenjski dobi sistema. Rezultati simulacije so bili primerjani z informativnim izračunom podjetja za isti objekt, pri čemer je bilo ugotovljeno dobro ujemanje rezultatov. Izdelani simulacijski model predstavlja uporabno orodje za hitro vrednotenje ekonomske upravičenosti investicij v sončne elektrarne, baterijske hranilnike električne energije in sisteme EMS. Zaradi uporabe dejanskih merilnih podatkov omogoča natančnejšo analizo energetskih tokov ter zanesljivejšo oceno ekonomskih učinkov različnih konfiguracij sistema. This bachelor's thesis addresses the evaluation of the economic feasibility of a Battery Energy Storage System (BESS) in combination with a photovoltaic (PV) power plant and an Energy Management System (EMS). The aim of the thesis was to develop a simulation model capable of analysing energy flows and evaluating the economic performance of different operating strategies based on real measurement data. The simulation model was developed in the Python programming language and is based on one year of measured electrical consumption data recorded at 15-minute intervals. The model considers the operation of a photovoltaic power plant, a battery energy storage system, and an energy management system. It incorporates strategies for peak shaving, energy arbitrage, and the utilization of surplus photovoltaic generation. Special attention is also given to the impact of battery degradation on the long-term economic performance of the system. Based on the simulation results, the main energy and economic indicators were determined, including annual savings, the number of equivalent battery cycles, investment payback period, return on investment (ROI), and the net profit over the system lifetime. The obtained results were compared with a preliminary investment assessment prepared by a company for the same facility, showing good agreement between both analyses. The developed simulation model represents a practical tool for the rapid evaluation of the economic feasibility of investments in photovoltaic systems, battery energy storage systems, and energy management systems. By using real measured data, the model enables a more accurate analysis of energy flows and provides a reliable assessment of the economic performance of different system configurations. baterijski hranilnik električne energije sončna elektrarna EMS ekonomska analiza Python degradacija baterij battery energy storage system (BESS) photovoltaic power plant energy management system (EMS) economic analysis Python battery degradation true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-09-18 10:45:03 2026-09-18 10:45:18 2026-09-19 04:30:08 0000-00-00 00:00:00 2026 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 63383 Gresak_Luka_-_Vrednotenje_ekonomske_upravicenosti_baterijskega_hranilnika_in_soncne_elektrarne.pdf Gresak_Luka_-_Vrednotenje_ekonomske_upravicenosti_baterijskega_hranilnika_in_soncne_elektrarne.pdf 1 10936F4E37B965B889548B7DEE08C5F4 64fa88f8524bc6c043b138eb260bc700c8159eb97cb80fcafec4485b84ba3eb5 3aeb46ef-b33d-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=248120 Fakulteta za elektrotehniko 0 0 0