EWEC, ACWA Power Sign Deal for Abu Dhabi Desalination Facility – UAE The Emirates Water and Electricity Company and Saudi Arabiaâs ACWA Power have signed the water purchase agreement for the worldâs largest sea water reverse osmosis desalination plant to be constructed at Taweelah Power and Water Complex, 50 km north of Abu Dhabi, at a cost of up to $900 million. The Taweelah IWP will be the first stand-alone independent water project in Abu Dhabi. Emirates Water and Electricity Company had awarded the project to ACWA Power in January 2019. (LINK). EWEC, ACWA Power Sign Deal for Abu Dhabi Desalination Facility – UAEHIWI042019-09-17T15:53:56+02:00