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The Visayas-Mindanao grid


Visayas-Mindanao grid link survey completed


MANILA, Feb. 2 (PNA) -- Power grid operator, the National Grid Corp. of the Philippines (NGCP), has announced the completion of a hydrographic survey that will determine the route that will link the power grids of Visayas and Mindanao.

“With this development, we now have a clearer plan on the project’s implementation. Power resource sharing among the country’s major islands will now become a reality,” the NGCP said in a news release issued Wednesday.

Linking the power grids of Visayas and Mindanao is part of the plan to unify the grids of both islands and Luzon. The Luzon and Visayas grids have long been connected through the Naga–Ormoc high-voltage direct current line.

The survey, conducted from Sept. to Nov. last year, found a viable route along the country’s western seaboard, from Cebu to Dipolog, Zamboanga del Norte.

An earlier NGCP study showed that eastern routes are unsuitable for laying submarine cables due to the presence of torpedoes and high-explosive shells from the 1944 Battle of Surigao, an underwater volcano, fault lines, and seismic hazards, such as unstable rock slabs that can cause landslips and tsunamis.

“This is a large undertaking. We want this facility to be state-of-the-art, as well as sturdy enough to last generations. We are considering many factors in the design and implementation of the project, including changing weather conditions. Ensuring the quality and reliability of power transmission services to both Visayas and Mindanao customers is of paramount importance,” the power firm said.

Estimating the project to be completed by Dec. 2020, the NGCP said it will soon start preparing the conceptual design, cost estimate, and update of the system simulation study using the Cebu-Dipolog route for submission to the Energy Regulatory Commission (ERC). It will also conduct inland and route surveys for substations and overhead transmission lines.

The grid operator sought the support of the ERC, environment department, and local government units along the path of the project.

“With their full support, we are confident that we will be able to complete this project on time,” the company stated. (PNA)


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