NGCP to complete Visayas interconnection project by 2019

The oversupply situation arising over development of solar power plants in Negros Island will be solved once the National Grid Corp. of the Philippines (NGCP) completes an interconnection project in the Visayas region in 2019.

The grid operator is currently working on the three-phased Cebu-Negros-Panay (CNP) Interconnection Project which will solve the Negros oversupply for solar plants, NGCP spokesperson Cynthia Alabanza-Perez said.

She said the project would loop the Visayas grid by alternative lines for transmission of electricity to the end point.

The grid operator could not keep up with the fast-paced solar developments in building additional transmission lines, which take years coinciding with the two- to three-year development of traditional power plants, such as coal, causing constraints on existing transmission facilities.

“Our TDP (Transmission Development Plan) is a 10-year plan updated annually but it was only last year these plants started (coming in),” Alabanza-Perez said.

The solar developments in Negros Island has created concerns on overcapacity and intermittency, which could strain the Visayas grid and cause major power outages especially when the current Negros submarine cable can only transmit 90 megawatts (MW) to other islands in the grid.

Latest NGCP data showed Negros has a total supply of 490 MW but demand is only at 309 MW, showing an excess of 181 MW.

Read more here.


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