It is spread over a total area of 77 square kilometers. The plant was implemented by the Dubai Electricity and Water Authority (DEWA). The first phase of the project was commissioned on 22nd Octorber 2013.
If you want to know more go for Wikipedia at https://en.m.wikipedia.org/wiki/Mohammed_bin_Rashid_Al_Maktoum_So;ar_Park
Or for more present information https://www.dewa.gov.ge/en/customer/innovation/renewable-energy/mohammed-bin-rashid-al-maktoum-solar-park