Company Profile

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 1,074 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 1,718 customer substations and 46 customer switching stations connected by MV cables with a total length of 2,691 kilometers. The low-voltage (LV) distribution network is made up of 1,027 kilometers of cable, while the street lighting network comprises 663 kilometers of cable and around 16,571 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

  • To create values for shareholders and community
  • To provide reliable, safe, sustainable and environmental-friendly energy services
  • To be a trustworthy company by realizing our core values
  • To provide excellent customer services
  • To cultivate a harmonized and professional team


Our Core Values
We place highest regards to integrity and professional ethics. We are honest, accountable, reliable and fair. We encourage innovation and strive for continuous improvement.
Care for the community
We uphold the spirit of customer first, we are committed to supporting and creating value for the community we serve.
Respect and trust for people
We treat our employee with respect, fairness and understanding.
Care for the environment
We provide excellent and reliable services in a sustainable way.
Our Commitment
To our employees
Increased job satisfaction, more opportunity for self-development, great pride in the company they are the most valuable asset of.
To the community
Commitment to making Macau a better place to live, work and visit.
To the environment
Cleaner and greener operations, higher awareness of environmental impact.
To our shareholders
Greater operating efficiency, profitable new opportunities.
To our customers
Provide excellent customer service by faster response to requests, enhanced innovative services, total safety.
Download CEM APP
google pay app store
© 2024 Companhia de Electricidade de Macau - CEM, S.A. All rights reserved.
CEM Website Terms of Use | Personal Data Collection Statement | Stay alert for phishing