| Reason | Description |
| Reason #1 | RO generation potential changes from standalone units (with a production potential < 1 m3/day) to units with larger scales (a production potential > 53,105 m3/day). |
| Reason #2 | RO functions in a large span of feedwater salinity (i.e., from BW to SW). |
| Reason #3 | RO units work constantly and indeed without enlarged shutdown times. |
| Reason #4 | RO units with low SEC function in the domain of 2 - 4 kWh/m3, close to the thermodynamic limit of 1 kWh/m3 for SW. |
| Reason #5 | C02 emissions from seawater reverse osmosis (SWRO) units are in the interval 1.7 - 2.8 kgCO2/m3, which is the smallest quantity relative to other desalination techniques, even if the amount of CO2 emissions from MSF distillation units is in the span 15.6 - 25 kgCO2/m3 and from MED units is in the span 7 - 17.6 kgCO2/m3. |
| Reason #6 | The RO technique stays cost-effective thanks to constantly lowering water treatment costs. For example, five years ago, for RO units with a larger scale and a production potential of >43104 m3/day, production costs were in the interval of 0.8 - 1.2 $/m3, which is anticipated to diminish by more than 60% during the following two decades to attain 0.3 - 0.5 $/m3 [54] . |