An inflatable non-imaging solar concentrator based concentrating solar thermal and photovoltaic system powered water desalination system comprises a concentrating electricity and heat cogeneration subsystem, a battery storage subsystem, a thermal storage subsystem with electric heater, a thermal power regeneration subsystem, and a water distillation system with electric heater. The inflatable non-imaging solar concentrator makes the concentrating system substantially low cost, and the hybrid solar thermal and photovoltaic panels used to construct the cogeneration receiver make the system ultra-high efficient. The cogenerated thermal energy is stored in a thermal storage and the cogenerated electric energy is stored in a battery storage to heat the stored thermal energy to pre-set high temperature for thermal power regeneration. The thermal energy after thermal power generation is used to desalinize water with assistance of electric heater powered by the stored electricity. An extra conventional photovoltaic system is added to compensate the concentrating hybrid solar thermal and photovoltaic system.
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