Fig. 4: Capacity investments for a fully renewable system obtained by solving design optimization without extremes (1st iteration).

a Power sector generation and storage capacity. Technologies include photovoltaics (PV), wind turbines, concentrated solar power (CSP), batteries, and thermal energy storage (TES). b Water sector production and storage capacity. Technologies include reverse osmosis (RO), multi-effect distillation (MED), and water storage tanks. c Heat sector generation capacity. Technologies include centralized resistant heaters (RC), decentralized resistant heaters (RD), air-source heat pumps (ASHP), geothermal energy (GEO), and concentrated solar power (CSP).