NGCP switches on expanded Luzon sub-station

By Ma. Cristina C. Arzadon

One Luzon E-NewsMagazine


LAOAG CITY – The National Grid Corporation of the Philippines (NGCP) switched on the expanded Luzon Substation in this city April 25 to meet Ilocos Norte’s increasing power demand.

Components of the project include the upgrading of the existing 70-megavolt ampere (MVA) load capacity of Laoag Substation to 100-MVA and its associated equipment.

The expansion program is also meant to make the province’s power supply more reliable given its present system where power passes from La Union, Ilocos Sur up to Ilocos Norte.

Ilocos Norte bears the brunt of power outages each time the La Union grid suffers a break down.

The NGCP also plans to link up Ilocos Norte’s power grid to Tuguegarao in Cagayan Valley so that the province will have an alternate power source when there is a power line interruption from the La Union-Ilocos Sur-Ilocos Norte loop.

The upgrading of the province’s grid is also in preparation for the entry of two more wind farms in Burgos and Pagudpud towns.

In Ilocos Region other ongoing projects are the installation of a new 200-MVA transformer unit at Bauang Substation in La Union and the installation of additional 50-MVA at Bantay Substation in Ilocos Sur.

Both are also scheduled for energization next month. The Luzon Substation Expansion project involves the installation of additional transformers to accommodate load growth and provide N-1 contingency at various substations in North and Central Luzon.

N-1 contingency is a term that refers to the ability to withstand the loss of a major system component with minimal disruption to the grid.#