Techno-Economic Analysis and Design of Hybrid Renewable Energy Systems for Post-Disaster Settlements: Case of Çınarcık

Turkey's location in an active earthquake zone renders energy supply security for post-disaster emergency settlements a critical necessity. In this study, an off-grid, sustainable hybrid microgrid system was designed for a planned container city and field hospital in the Çınarcık district of Yalova province following a potential disaster. The primary objective of the study is to establish a resilient energy infrastructure that minimizes fossil fuel dependency and supports the "Green City" vision. Techno-economic analyses were conducted using HOMER Pro software, simulating the integration of Solar (PV), Wind, Biogas, and Hydrogen storage technologies (Electrolyzer, Hydrogen Tank, Fuel Cell). Sensitivity analysis was applied to daily average load demands of 500 kWh and 750 kWh. Optimization results indicate that the most suitable configuration, in terms of energy supply security, resource diversity, and environmental impact, is the system comprising 200 kW Solar Panels, 5 Wind Turbines, 80 kW Biogas Generator, 150 kW Electrolyzer, 50 kW Fuel Cell, 50 kg Hydrogen Tank, and a 100 kW Converter. The Total Net Present Cost (NPC) of this selected system was calculated as $1.63 Million, with a Renewable Fraction of 99.8%. The findings demonstrate that hydrogen and biogas-supported hybrid systems are technically and economically feasible, sustainable solutions for providing carbon-neutral and uninterrupted energy in disaster zones.