Fig. 4: SEC and SWP comparison from 1980 to 2023.
From: Accelerating solar-powered desalination deployment through transferable learning
a SEC of different solar desalination technologies. ROcom: Commercial RO plants (not all powered by solar energy). Circles represent the SEC of RO using three types of energy recovery devices (ERDs). (PT: Pelton turbine, DWEER: dual work exchanger energy recovery, PX: pressure exchanger). b SWP of different desalination technologies. Two points linked with a solid line represents the range of SWP in one study and here we assume the SWP of direct solar desalination equals its water production rate. (Blue dash line: the SWP range of PV-RO from Wang et al.’s study7; green dash line: the SWP range of STD from Wang et al.’s study7).
