National Grid Corp. of the Philippines (NGCP) is seeking an approval from the Energy Regulatory Commission for its P90-billion Batangas-Mindoro 500kV Interconnection and Backbone Project (BMIBP).
NGCP, in its filing with the ERC, underscored the need to upgrade the design of the interconnection of Mindoro to the Luzon grid and implement a new scheme of the interconnection project to provide a bigger transmission capacity at 500 kilovolt consistent with the Philippine Energy Plan 2023- 2050.
It said the BMIBP would also encourage the development of power generation potential in Mindoro Island, such as those renewable energy in the two Competitive Renewable Energy Zones (CREZ), with an aggregate capacity of around 343 megawatts for solar PV and 710 MW for wind farms.
“This will provide opportunity to power generation companies due to a wider market brought about by completion of the project,” NGCP said.
The project will be developed in two phases, with stage 1 costing P45.59 billion.
Stage 1 involves the development of combination of overhead transmission lines and undersea/submarine cables from Pinamucan Substation in Batangas to the proposed Calapan Substation in Oriental Mindoro.
The transmission line is designed at 500kV but to be initially energized at 230 kV and includes the development of Calapan 500 kV Substation.
The estimated project implementation period is 66 months from the start of pre-construction activities subject to certain scenarios.
Stage 2, costing P45 billion, involves the energization to 500 kV of the overhead transmission lines and submarine cables from Pinamucan to Calapan 500 kV substations and the full development of the Calapan 500 kV Substation.
The 500 kV interconnection system (under Stage 1) will be extended to the southern part of Mindoro Island through the development of Calapan-Magsaysay 500 kV Transmission Line and Magsaysay 500 kV Substation to serve the loads in Occidental Mindoro and accommodate the potential OSW projects in the southern part of the island.
Stage 2 will be implemented over 70 months from the start of pre-construction activities.
NGCP said the present power system of Mindoro Island is composed of 69 kV transmission lines connected to various load- end substations and being operated by Small Power Utilities Group (SPUG) of the National Power Corp. (NPC), and independent power producers (IPP).
“BMIBP will be able to provide a reliable interconnection facility that can deliver sufficient power from the Luzon Grid to immediately address the present and foreseen supply deficiency on the island. It will be done through the development of drawdown substations linked to the existing 69 kV network in Oriental and Occidental Mindoro,” NGCP said.
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