The UAE’s seven emirates have historically run electricity and water through four separate authorities. New federal authority Ewec aims to change all that.

The UAE is shaking up its electricity and water sector, currently dominated by government organizations in the two largest emirates Abu Dhabi and Dubai.

In November, a law was passed to establish the Emirates Water & Electricity Authority (Ewec) to oversee the operations of the newly-formed Abu Dhabi Power Corporation, which...