An Aquahara Water Generator needs 50 m² of space for the solar collectors plus an outside surface area of 3 x 6 meters (9 ft x 18 ft) for the generator itself. It produces around 100 liters (25 gallons) of water per day. This is the standard system size that we are currently offering. If you want to produce more water, you can just buy multiple such units. If you need a smaller system, please check our website in the future.