Al Tayer has been at the helm of DEWA since its inception in 1992. DEWA intends to increase its water desalination capacity to 730 million imperial gallons per day by 2030, up from 490 million in 2023. DEWA has invested up to $4.3 billion in the fourth phase of the Mohammed bin Rashid Al Maktoum Solar Park to provide clean energy for approximately 320,000 residences and reduce carbon emissions by 1.6 million tonnes annually. Al Tayer is also vice chairman of the Dubai Supreme Council of Energy and Emirates Global Aluminium and is the chairman of Dubal Holding and the ENOC group.