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Subsea Infrastructure has delivered over 2 billion litres of drinking water since December

May 5th, 2009 |

Subsea Infrastructure has delivered over 2 billion litres of drinking water since December, equivalent to 10% of the increase in the Kouris Dam.

The mobile desalination plant installed at Moni is one of the first of its type in the world and its successful installation in 8 months is the world’s fastest ever for a plant of this size.

The successful construction and delivery of the first mobile desalination plant in Cyprus by Subsea Infrastructure and Nirosoft Industries was completed in December 2008 and produces high quality drinking water from the sea delivering 20 million litres per day (20,000 cubic metres) directly for the people around Limassol.

David Dwek, Director of Subsea Infrastructure said, “Subsea Infrastructure, together with our partners, are delighted to have executed this project successfully and in record time. There are no precedents in the global desalination industry for the successful completion of such a complex project in a few months. This is the result of working closely with the Water Development Department and other Government Departments to improve the availability of fresh drinking water in Cyprus”.


Subsea Infrastructure Cyprus

The Cyprus Moni plant was subject to much attention at the recent ‘World Water Forum’ in Istanbul where Governments, International Institutions, NGO’s and the water industry gathered to discuss the global water crisis. The unique mobility aspect of the solution as well as the speed of deployment is seen as one of the few options available to Governments facing immediate problems.

In February 2008, Subsea Infrastructure from the UK and Nirosoft Industries from Israel signed a three year water supply contract with the Water Development Department, part of the Department of Agriculture and Natural Resources, for the construction of a mobile seawater reverse osmosis desalination plant at the Moni Power Station outside Limassol.

The plant has been constructed and installed in less than eight months. A local company, Silnir Cyprus, was formed by Subsea Infrastructure to manage the operations which involved subcontractors and a team of over 15 key experts, originating from Cyprus, the UK, Israel, Finland and Norway. A team of local engineers and technicians are employed to operate and maintain the plant.

The latest pumping and piping technology has been deployed both onshore and offshore. Over 30km of pipes and electrical cabling have been used and the advanced systems allow the equipment to be controlled and analysed both at the site and remotely. 1.8km of large diameter pipes have been installed on the seabed up to a depth of 20 metres for the intake of higher quality water and for the discharge of the brine by-product through a diffuser to ensure environmentally sensitive dispersal.

Approximately 45,000 cubic metres of seawater is pumped to the pre-treatment and ultra filtration units. The seawater is progressively filtered before entering the reverse osmosis membranes at high pressure. 20,000 cubic metres of drinking water are then treated and ready for delivery.

All necessary environmental, health and safety procedures have been followed during the construction, installation and operations process. Furthermore, the latest energy recovery system has been installed to improve the energy efficiency of the process.

The final product from the plant is tested to ensure the drinking water is of the required high quality and is subsequently pumped 1.3km from the plant to the Southern Conveyor of the Water Development Department from which the water then enters the supply network for consumption by the people of Cyprus.

Reverse osmosis technology is well established both in Cyprus and internationally. It has been used commercially since the 1970s and is more energy efficient than other methods of desalinating seawater. Furthermore, the Moni plant is extremely innovative, being one of the first in the world of such size to implement an almost chemical-free, environmental friendly process, based on membrane separation technology.

A spokesman for the Water Development Department said “The installation and Operation of the first Mobile Desalination Plant in Cyprus located at the Electrical Power Station in Moni was a direct Government decision to address the problem of water shortages in Cyprus. The Plant was constructed in this location to provide fresh drinking water to the people of Limassol. The Plant uses the electricity generated from the power station and the drinking water is delivered directly into the Southern Conveyor.
The WDD is very pleased that the consortium understood the urgency of the water shortages in Cyprus and employed all the necessary resources to commence delivery of water within 2008.”

The Moni desalination equipment will be placed on a barge and moved to another destination at the end of the current contract at the end of 2011. This will leave the current site totally clear, owing to the specially designed containers and movable plant.

A spokesman from Subsea Infrastructure said: “we have received a lot of interest from other parts of the world where water is scarce. The plant will still have seventeen years to operate and may well end up as a more permanent off-shore solution”.

About Subsea Infrastructure
Subsea Infrastructure Ltd is a private UK based company involved in the installation of pipelines and cables for the water, oil and gas, cable and related sectors around the world. Our experienced team has pioneered the concept of rapid deployment of large and medium scale mobile desalination solutions both on and offshore. Further information can be obtained at

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