Republic Act No. 9136


An Act Ordaining Reforms in the Electric Power Industry, Amending for the purpose certain Laws and for other purposes.

The ERC shall set the standards of the voltage transmission that shall distinguish the transmission from the sub-transmission assets. Pending the issuance of such new standards, the distinction between the transmission and sub-transmission assets shall be as follows: 230 kilovolts and above in the Luzon grid, 69 kilovolts and above in the Visayas and in the isolated distribution systems, and 138 kilovolts and above in the Mindanao Grid: Provided, That for the Visayas and the isolated distribution system, should the 69 kilovolt line not form part of the main transmission grid and be directly connected to the substation of the distribution utility, it shall form part of the sub-transmission system.

Source InstitutionNational Economic and Development Authority
Source URL
Page Count35
Place of PublicationManila
Original Publication Date