Electricity was present in Cambodia in 1906. Before October 1958, electricity and lighting applications in Cambodia were supplied by three private companies:

• Company of water and electricity Company Compagnie des Eaux et Electricité CEE
• Union Electrique d'Indochine (UNEDI)
• French French Company - French Company Compagnie Franco-Khmer d'Electricité (CFKE)

Water and Electricity (CEE) Company has provided major power services in Phnom Penh. The Federal Electricity Indochina (UNEDI) is responsible for all other provinces, except Battambang which is supplied by Electricite du Cambodge (CFKE).

According to Decree No.665-NS of October 10, 1958, two companies, Water and Electricity (CEE) and the Electricity Indochina (UNEDI), united together as the sole company named Electricité du Cambodge .

During 1971 to 1979, the power sector in the country experienced two events that had suffered civil war (1971-1975) and a historic chaos during the Khmer Rouge period (1975-1979). During that time, the means of production, transmission, and distribution of all kinds were severely damaged and severely damaged during the genocidal regime, not only in Phnom Penh, but also in other areas.

In 1979, EDC was reconstructed by the first administrative structure under the management of the Ministry of Industry (Decision 105/80 BCE dated May 23, 1980 of the People's Revolutionary Council of Kampuchea) .

Since 1991, EDC has been transferred from one branch to another:

• 1991 (from March 30, 1991) transferred under the supervision of Phnom Penh People's Committee, under the name of Electricity of Phnom Penh and responsible for supply of electricity in Phnom Penh (Sub Decree Nº 04 dated March 30, 1991 of the Council of Ministers), as well as electricity supply in provinces throughout the country. Under the management of the provincial Department of Industry separately.
• 1993 (from April 12, 1993) transferred to the Council of Ministers, renamed Electricité du Cambodge (Sub-Decree No 07, dated April 12, 1993 of the Council of Ministers) .
• 1993 (from July 16, 1993) transferred to the Ministry of Energy and Mines.
• 1993 (during November 1993) transferred to the Ministry of Industry, Mines and Energy, and responsible for supply of electricity to Phnom Penh. Meanwhile, the electricity service units in some provinces remain under the authority of the provincial authorities but are funded by the Ministry of Industry, Mines and Energy.

In March 1996 (through the Royal Decree Jsc / Ratana / 0396/10 dated March 9, 1996), EDC was designated a limited liability company by the state responsible for transmission, transmission and distribution. Electricity throughout the Kingdom of Cambodia. Electricite du Cambodge is a legal entity with administrative and financial autonomy with a commercial goal, with rights and responsibilities determined by law. EDC is directly responsible for all fees and liabilities, and all liabilities to the level of its value. At the same time, the provincial electricity units were transferred from the provincial Department of Industry, Mines and Energy to the power of Electricite du Cambodge:

• Electricity Siem Reap, Transfer dated December 30, 1995
• Sihanoukville City, transfer on June 11, 1996
• Electricity of Kampong Cham transferred on March 23, 1998
• Electric Takeo Transfer, June 26, 2000
• 5Electric Battambang Transfer dated June 28, 2000
• Electricity of Kampong Speu transferred on March 14, 2002
• Electric Kampot Transfer August 14, 2003
• Electricity of Banteay Meanchey transferred on August 14, 2003
• Stung Treng Power Transmission August 14, 2003
• Svay Rieng electricity transferred on August 14, 2003
• Electricity of Prey Veng transferred on August 14, 2003
• Electric Rattanakiri Transfer on August 14, 2003
• Electricity Mondolkiri transferred on May 10, 2010
• Electric Kratie Transfers April 20, 2011