National Transmission Corporation (TransCo) (Laoag)

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The National Transmission Corporation (TransCo) is a government-owned and controlled corporation that has assumed the electrical transmission functions of the National Power Corporation (NPC) in the major Philippine grids.

Created by virtue of Republic Act 9136 or the Electric Power Industry Reform Act of 2001, TransCo is responsible for the planning, construction, and centralized operation and maintenance of high voltage transmission facilities nationwide including those of grid interconnections as well as the provision of ancillary services.

TransCo is one of the largest corporations in the country with around US 2-billion in physical assets. At the end of 2001, TransCo's transmission lines spanned a total of 20,720 circuit-kilometers while substation capacity measured 21,449 million volt-amperes.

TransCo's direct customers include power plants owned by NPC and independent power producers (IPPs) nationwide which supply electricity to power distributors, electric cooperatives, and other utilities.