Morocco's National Office of Electricity and Drinking Water (ONEE) announced the commissioning of a new 400 kV extra-high voltage (EHV) transmission line on June 28, 2026. The 274-kilometer line connects the Chemaia substation near Youssoufia to the Médiouna substation in the Casablanca-Settat region.
The project, part of ONEE's ongoing grid modernization plan, aims to strengthen the national electricity network and improve supply reliability, particularly for industrial and urban areas. The 400 kV line is designed to reduce transmission losses and support the integration of renewable energy sources from southern Morocco.
ONEE stated that the line will also enhance interconnection capacity with neighboring regions and help meet growing electricity demand. The project was completed on schedule, according to the utility.
