The actual capacity of CEM’s generation consists of three power stations located respectively in the Macau City namely Macau Power Station (CMC) and two on the Coloane Island namely Coloane A Power Station (CCA) and Coloane B Power Station (CCB). Together, CEM has a total installed capacity of 472 MW.

The predominant type of generation technology deployed are the low speed diesel generator (CCA) and the combined cycle gas turbine (CCB). In fact, these 2 kinds of generating units make up of 58% and 29% of total capacity installed and generated as much as 34% and 66% of total electricity production in 2010 respectively. The total natural gas consumption of CCB was 154688 Km3 for the year.

In 2010, the gross energy demand was 3809 GWh of which 928 GWh was produced by CEM and 2881 GWh has acquired from external suppliers. The energy breakdowns between CEM production and energy acquisition were respectively 24% and 76%. And the annual growth rate was 4.2%. The maximum values registered for energy and daily load demands were respectively 14.4 GWh and 690.9 MW.