The Energy Regulatory Commission of the Philippines has granted grid connection approval for the 3.5 GW MTerra Solar project.

The approval allows the development of a dedicated point-to-point transmission link to the Luzon grid, a critical step in overcoming infrastructure constraints. The project is being developed by Meralco PowerGen Corporation and its subsidiary SP New Energy Corporation, with UK-based Actis holding a 40 per cent equity stake valued at USD600 million. Engineering and construction are being undertaken by Energy China, PowerChina, and Meralco Industrial Engineering Services Corporation. Located across Nueva Ecija and Bulacan, the project will include 3.5 GW of solar capacity and 4.5 GWh of battery storage. The first phase—1.5 GW solar and 2 GWh storage—is 54 per cent complete, with 90 per cent progress on transmission works as of September 2025. The facility will connect to the 500 kV Nagsaag–San Jose line and San Isidro substation, enhancing grid reliability and renewable integration across Luzon.