Keyword: drinking water, water and sanitation, desalination



The WEROP is a patented, South African built unit that sits on the sea bed anywhere between 500m and 1km out to sea. The pump, using wave power, pushes water through an undersea pipe to the shore, where it is configured to do any or all of the following:

  • run through a Reverse Osmosis unit to produce fresh water;
  • run through a turbine to produce electricity; and/or
  • be pumped at high volume for land based sea water mariculture.

The Reverse Osmosis unit can be configured to produce water for irrigation, or high quality tap water, or even ultra-high quality water for bottling.

A techno-economic evaluation of the wave pump facility, referred to as the IFW facility or technology and consisting of a combination of the sea unit itself plus one, two or three of the processes as described above, has been completed to confirm the viability of the system. The model was applied to two separate (hypothetical) locations, namely a South African Municipal location near a coastal town and Tropical Island location.


What WEROP offers

WEROP uses no electricity to provide the following:

  • fresh water from a permanent supply;
  • electricity that is both environmentally friendly and more consistent than wind or solar;
  • sea water pumped in large volumes continuously;
  • by-products including mariculture, and
  • the opportunity to earn carbon credits.

The solution we offer is highly customised to client needs. It is arguably the most environmentally friendly solution for the provision of electricity, and it provides a sustainable source of water.


More info

This innovation was designed by Impact-Free Water, and is supported by the Water Technologies Demonstration Programme. More information can also be obtained from WEROP's website.