MD and CEO Saeed Mohammed Al Tayer made the declaration during a visit to the facility this month.
DEWA is building the 800MW photovoltaic third phase of the solar park in three stages, in partnership with a consortium led by Abu Dhabi Future Energy Company (Masdar) and EDF Group, through its subsidiary EDF Énergies Nouvelles.
The 200MW first stage became operational in May 2018; while the 300MW second stage became operational in August last year.
The Mohammed bin Rashid Al Maktoum Solar Park has a planned capacity of 5,000MW by 2030.
This solar plant is the first of its kind in the Middle East and North Africa, with an advanced solar tracking system to increase generation efficiency by 20-30% when compared to fixed installations.