THREE months after Super Typhoon Yolanda hit Central Visayas, the country’s grid operator has already energized the last remaining sub-transmission line damaged by Typhoon Yolanda in November.
As early as December, system operator National Grid Corp. of the Philippines (NGCP) was already able to restore two transmission backbones damaged by the typhoon.
On February 4, NGCP said it already completed the restoration of Tolosa-Javier 69-kilovolt (kV) line in Leyte, making it ready to serve the connected distribution utility Don Orestes Romualdez Electric Cooperative.
NGCP clarified that the said line is only for looping or redundancy purposes, and that the load customer connected to it is not yet ready to receive power. As NGCP completes the restoration of its transmission facilities, the distribution utilities and electric cooperatives at the distribution side are continuously restoring power to their respective customers.
In its latest report to the Department of Energy (DOE), NGCP reiterated that it has fully restored power transmission to the Visayas grid on December 23, 2013, through the use of emergency restoration system and lightweight modular towers. Though temporary, these structures are designed to withstand weather disturbances.
NGCP also mentioned in the report that permanent restoration of the backbone structures, particularly the 134 towers of the Panit-an-Nabas 138-kV line in Capiz and the 72 towers of the Ormoc-Isabel 138-kV line in Leyte, will commence “once the detailed design is completed.”
In its previous statements, the system operator said it aims to create new designs of transmission towers that can withstand the wind speed of super typhoons similar to Yolanda.
“We have to start working on the long-term solution to the devastation, which is innovating and improving our designs,” said NGCP spokesperson Cynthia Perez-Alabanza.
NGCP is in coordination with the Department of Energy, National Electrification Administration and other concerned agencies in bringing back the power in the Visayas region.