About us

FWN designs innovative solutions and develops sustainable projects

The Company

Fresh Water Nature (FWN), created in 2013, is a clean-tech start-up focused on developing technologies related with water treatment born at CIMNE, the International Center for Numerical Methods in Engineering, in Barcelona. FWN is wholly owned by CIMNE.

R&D Centre in computational engineering

CIMNE Research Center

CIMNE's multidisciplinary team of 280 researchers allows for continuous improvement of its technologies and its transfer to subsidiaries like FWN.

CIMNE's main headquarters are based in Barcelona Tech campus under the umbrella of UPC (Polithecnics University of Catalonia), together with other research institutes.

Cool Steam technology is currently at TRL 6


CIMNE's Nature group developed the patented Cool Steam technology during the years 2011 through 2013.

In 2013 FWN was created and CIMNE licensed the Cool Steam technology and its commercialization rights to its new spin-off.

FWN and CIMNE technical teams have worked together in several R&D projects for developing and maturing Cool Steam technology, which is currently at TRL 6.

FWN’s strategic goal is to supply smart and affordable desalination devices that may help to shorten the gap between the need and availability of fresh water with a low energy demand

Business Strategy

The role of FWN starts when CIMNE has validated and patented its technology from experimental work done at a laboratory scale and it is time to continue further developments targeting specific industrial applications.

FWN works under license from CIMNE.

FWN's purpose is to further develop the water technologies born at CIMNE in order to approach them to the market. FWN's strategy is to team up with key industrial partners to bring Cool Steam desalination Technology to the market.

FWN is settled in Castelldefels, Barcelona


FWN operates from its facilities at PMT-UPC Campus (Parc Mediterrani de la Tecnologia) in Castelldefels, in the Mediterranean coast 20 Km from Barcelona. There FWN has an engineering workshop and a laboratory.

FWN has an experimental station installed at the desalination plant of Barcelona for field testing, installed experimental pilots within other seaside companies' facilities and agreements to install further pilots.

FWN’s technical team is made up multidisciplinary professionals

The Team

Besides CIMNE's multidisciplinary Nature research group, FWN has a dedicated team of five people working enthusiastically in the technical development of innovative water technologies