Prime Solar Solutions Corp. (Prime Solar), a subsidiary of Prime Infra, has activated its 128-megawatt photovoltaic (PV) plants in Tanauan, Batangas, and Maragondon, Cavite, a step towards full commercial operations.

Guillaume Lucci, Prime Infra president and chief executive officer, said the move is part of the company’s strategy to utilize renewable energy sources to address the increasing demand for stable power supply.

“Both the Tanauan and Maragondon plants recently commenced operations,  advancing Prime Infra’s broader strategy of harnessing renewable energy sources to meet the growing demand for stable power supply,” Lucci said.

The Tanauan plant was connected to the New Milagrosa 115 kilovolt Switching Station on Oct. 1, while the Maragondon plant was linked to the 115 kV TMC-2 substation on Oct. 10. These connections integrated both plants into Manila Electric Co.'s power grid.

Prime Solar has a 50-megawatt, 20-year power supply agreement with Meralco and supplies the rest of its output to the grid.

Meralco recently issued the Final Certificates of Approval to Connect (FCATC) for both plants, which were submitted to the Energy Regulatory Commission (ERC) to secure the Certificate of Compliance needed to declare full commercial operations.

The combined Tanauan and Maragondon PV plants supply up to 128 megawatts of renewable energy, powering over 84,000 households and displacing more than 100,000 tons of coal annually.

Lucci added, “Reaching this milestone with Prime Solar highlights our ongoing commitment to creating a cleaner, sustainable future. Our investment in renewable energy not only meets immediate needs but also supports long-term growth with environmental sustainability at its core.”

Energy Undersecretary Rowena Guevara acknowledged the Prime Solar project as a significant contribution to the government’s transition to clean energy, aiming to achieve 35 percent renewable energy in the generation mix by 2030 and 50 percent by 2040.