2022 3rd International Conference on Photovoltaic Science and Technologies (PVCon), Ankara, Turkey, 5 - 07 July 2022, no.95, pp.1
TToday’s world suffers from an increasing dependence on fossil fuels, which are finite and whose unbalanced distribution in different regions causes political conflicts. Furthermore, burning these fuels adversely affects the environment and results in global warming. Thus, renewable energy systems (RES), such as PV systems, could support the future need and lead to a sustainable environment. The main problem of PV is that the resource is intermittent. This problem could be relieved by coupling the PV system with an energy storage system. This study assesses two different storage systems, electrolyzer-fuel cell (EFC) and battery (BESS), for a PV power plant at a METU campus. The PV plant is sized as 4.5 MW which would generate electricity to meet the annual demand, whereas the storage systems are initially sized as 467 kW based on the average deficit energy of the campus. The preliminary, main results are presented in the table below. As the table indicates, the annual fraction of the demand supplied by the system (RES Fraction) without storage is 49.6%; this fraction is increased by 6.2% and 2% by installing EFC and BESS, respectively. Besides, the autonomy fraction also increased by 1.5% and 2.1% utilizing EFC and BESS, respectively, compared to the system without storage. Although the RES fraction of EFC is higher than BESS, the autonomy of BESS is a bit greater than EFC. The full version of the paper will include LCOE and another sizing method based on LCOE and the grid tariff.