Rizal Green Energy Corporation (RGEC), a Yuchengco-led renewable energy company, completed the grid connection for its 40-megawatt direct current (MWDC) Limbauan Solar Power Project (LSPP) in Isabela on October 25, 2025.

The project, developed through RGEC’s operating unit BKS Green Energy Corp. (BKSGEC), consists of two phases: a 6-MWDC Phase 1 embedded within the Isabela Electric Cooperative’s (ISELCO) distribution system and a 34-MWDC Phase 2 directly connected to the National Grid Corporation of the Philippines’ 69-kilovolt Tuguegarao–Cabangan transmission line.

BKSGEC completed construction of the solar facility and its related connection infrastructure in early August. After receiving NGCP’s provisional approval to connect on October 24, BKSGEC and contractor Harmonics System Inc. successfully linked Phase 2 of the project to the grid through the site’s switching station, while Phase 1 was connected to ISELCO’s 13.8-kilovolt line at its Cabangan substation.

The project now awaits NGCP’s approval of its energization request, which was filed on August 29, before it can begin testing and deliver power to the Luzon grid.

The LSPP is part of RGEC’s 112-MWDC solar portfolio under joint ownership between Japan’s Taisei Corporation and PetroGreen Energy Corporation, a Yuchengco affiliate under PetroEnergy Resources Corporation. Other projects include the 27-MWDC Dagohoy Solar Power Project in Bohol, the 19.6-MWDC San Jose Solar Power Project in Nueva Ecija, and the 25-MWDC Bugallon Solar Power Project in Pangasinan.

The Dagohoy and San Jose facilities began commercial operations in July and August 2025, respectively, while the Bugallon project, completed in August, is still awaiting NGCP’s energization approval filed on August 20.

How do you think projects like these can help accelerate the Philippines’ transition to cleaner energy sources?

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