Business Overview
Companhia de Electricidade de Macau - CEM, S.A. (CEM) is a public utility company with the sole concession to transmit, distribute and sell high, medium and low-voltage electricity in Macau. CEM also owns power generation facilities.
The Macau electricity transmission network is comprised of 27 primary substations, 8 high-voltage (HV) switching substations with a total length of 1,078 kilometers of high-voltage cables ranging from voltage levels of 66kV, 110kV and 220kV. The Guangdong-Macau power network is interconnected by eight circuits of 220kV main supply lines and four circuits of 110kV backup lines, forming a transmission network with three 220kV interconnections, namely the ‘North, Central and South', for transmitting electricity to Macau.
The 11kV medium-voltage (MV) electricity distribution network is comprised of 1,732 customer substations and 45 customer switching stations connected by MV cables with a total length of 2,729 kilometers. The low-voltage (LV) distribution network is made up of 1,042 kilometers of cable, while the street lighting network comprises 666 kilometers of cable and around 16,691 streetlights. Almost entire CEM’s power network in both transmission and distribution is comprised of underground cables.
Our Vision
To be a leading energy service provider in Asia
Our Mission