FIELD: technological processes. SUBSTANCE: invention relates to water supply. Proposed plant comprises cold accumulator, water collector and air duct composed of exhaust pipe with air heater connected with solar collector. Cold accumulator used is soil, in which there is additionally introduced shell-and-tube heat exchanger-condenser, equipped with cooling ribs, air inlet-outlet pipes through its internal tubes and water condensate discharge branch pipe connected to water collector. Atmospheric air inlet pipe to the heat exchanger is connected to the atmosphere via the control valve. Outlet pipe of air from the heat exchanger through the additional pipeline is connected to the suction ejector tube-sampler, placed in the upper part of the air duct. In lower part of air duct there are openings for atmospheric air intake. EFFECT: higher efficiency.