The corporates will offer $50,000 to each company able to improve energy efficiency for the water desalination process.

US-based industrial conglomerate GE and Aramco Entrepreneurship, a subsidiary of Saudi Arabia-based petroleum company Saudi Aramco, have launched an open global challenge to improve the energy efficiency of seawater desalination.

The firms have stumped up a total of $200,000 for four potential winners of the Ecomagination challenge, with the total prize fund being shared equally between the successful applicants.  

Current water desalination techniques consume large amounts of energy, which can account for up to 70% of desalination costs. The goal…