20.500.12556/RUL-164712 Vpliv novega omrežnega tarifnega sistema na stroškovno učinkovitost fotonapetostnih elektrarn The impact of the new network tariff system on the cost-efficiency of photovoltaic power plants V diplomski nalogi smo obravnavali stopnjo energijske samooskrbe stavb ter stroškovno učinkovitost fotonapetostnega sistema glede na tarifni sistem oskrbe z električno energijo. V prvem delu naloge smo preučili zasnove sistemov za samooskrbo stavb z električno energijo. Naredili smo primerjavo modelov za statično in dinamično napoved proizvedene električne energije s fotonapetostnim sistemom. Obe metodi smo uporabili za določitev stopnje samooskrbe izbrane stavbe na osnovi kratkotrajnih letnih podatkov o rabi električne energije. Kot cenilko smo uporabili faktor ujemanja na stavbi proizvedene električne energije in rabo električne energije v stavbi. V nadaljevanju smo preučili razlike med sedanjim in napovedanim tarifnim sistemom dobave električne energije iz omrežja, pri čemer smo uporabili dinamično modeliranje delovanja fotonapetostnega sistema. Z uporabo metode sedanje vrednosti smo določili stroškovno učinkovitost različnih fotonapetostnih sistemov za izbrano stavbo. Ugotovili smo, da moramo za vrednotenje novega tarifnega sistema uporabiti dinamično modeliranje, ki omogoča vključitev profila dejanske rabe električne energije. Določili smo optimalni fotonapetostni sistem in razliko v stroških električne energije pri otočnem delovanju. Za izbran primer razlika v stroških ne presega 10%. In the thesis, we examined the level of energy self-sufficiency of buildings and the cost- effectiveness of a photovoltaic system in relation to the tariff system for electricity supply. In the first part of the thesis, we studied the design of systems for the self-sufficiency of buildings with electricity. We compared models for static and dynamic forecasting of electricity generated by the photovoltaic system. Both methods were used to determine the level of self-sufficiency of a selected building based on short-term annual data on electricity consumption. We used the matching factor of the electricity produced on the building and the electricity consumption in the building as the estimator. Furthermore, we studied the differences between the current and the predicted tariff system for the supply of electricity from the grid, using dynamic modeling of the photovoltaic system's operation. By applying the present value method, we determined the cost-effectiveness of various photovoltaic systems for the selected building. We found that dynamic modeling, which allows for the inclusion of the actual electricity consumption profile, must be used to evaluate the new tariff system. We identified the optimal photovoltaic system and the difference in electricity costs in island operation. For the selected case, the cost difference does not exceed 10%. obnovljivi viri energije fotonapetostni sistem primerjava modelov izračuna električne energije tarifni sistem povračilna doba renewable energy sources photovoltaic system comparison of electricity calculation models tariff system payback period true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2024-11-08 08:30:54 2024-11-08 08:30:59 2025-01-22 14:08:34 0000-00-00 00:00:00 2024 0 0 XX, 61 str. 2024 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 697:621.383.51:620.91(043.2) 270120 223144195 38363.pdf 38363.pdf 1 0F6C883353C48ED9E675163E2B44B15F 5290be5aeb4c718cb91130c49c585195a566907f4f8485bd8a403bd41777cbf8 0ca76b2f-9da3-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=195338 Fakulteta za strojništvo 0 0 0