Mykonos Port Water Reuse: The System and Its 65% Target

A second use for water at the port

Water from sinks in the port of Mykonos’s public sanitation facilities is now collected for treatment and reuse, according to the Municipal Port Fund. In an announcement dated 26 October, the Fund said the new system had been put into operation. Equipment that produces water from atmospheric humidity was also installed, and the public toilets were upgraded. These are the Port Fund’s account of the project; we have not independently inspected the installation.

For an island with sharply seasonal demand, the practical question is whether a specific use can draw less water from the municipal network. The Fund says the project’s technical study forecasts a reduction of more than 65% in network water demand for the sanitation facilities, compared with their operation without reuse. That figure is a forecast for those facilities. It is neither a measurement of water saved since commissioning nor a percentage for the port as a whole or for Mykonos.

How the system is described

According to the announcement, water from the sinks passes through filtration, oxygenation and disinfection before being reused in the facilities. Production of water from atmospheric humidity is a separate additional part of the project. A monitoring system records the volume of treated water reused in real time, and a public display shows visitors information about the system’s operation. The announcement does not provide an independently verified operating dataset.

That record could make the difference between an impressive target and demonstrated savings. Results over a meaningful operating period would show how much network water was displaced, how performance changes with traffic at the port and what energy the equipment itself uses. The Fund says actual benefits will be assessed during operation.

Who financed it, and what to check next

The Port Fund says CTL Maritime, part of the MSC Group, financed the project in full, at no financial cost to the Fund. Global Esco undertook the technical study and installation in cooperation with the Fund’s engineers. Those financing terms do not establish the system’s future running costs or measured environmental benefit.

Commissioning is the news. The next useful evidence is a public operating account: measured water reuse, comparable network consumption and the system’s energy requirements. Only then can the study’s target be tested and the value of this approach for other island ports judged.

Reporting sources

Sources checked: 2026-11-04.

Mykonos port starts reusing water — now comes the measurable test