MTerra Philippines solar project Completes Grid Synchronization
A monumental step forward for renewable energy in Southeast Asia has been achieved as the MTerra Solar project in the Philippines successfully completed the initial grid synchronization and energization of its first phase. This landmark event, which took place on February 12, 2026, connects the facility to the Luzon grid, marking a significant milestone for what is set to become the world’s largest integrated solar and battery energy storage facility.
A Philippines solar project of Unprecedented Scale
Developed by Meralco PowerGen Corporation (MGEN) in partnership with Actis, the MTerra project is a testament to the country’s commitment to a sustainable energy future. The project is being rolled out in phases, with the entire facility planned to reach a staggering 3.5 gigawatts (GW) of solar power generation capacity coupled with a 4.5 gigawatt-hour (GWh) Battery Energy Storage System (BESS).
The newly energized Phase 1 alone is a massive undertaking, encompassing approximately 2.5 GW of solar capacity and a 3.3 GWh BESS. Spanning over 3,500 hectares across the provinces of Nueva Ecija and Bulacan, the facility utilizes advanced bifacial n-type tunnel oxide passivated contact (TOPCon) photovoltaic modules to maximize energy capture.
Current Status and Immediate Goals for the Philippines solar project
Even before this initial synchronization, the MTerra project had already become the largest photovoltaic array in the Philippines. As of late January 2026, 1,288 megawatts (MW) of solar panels and 622 BESS units had been installed.
Following the successful connection to the grid, the project team is aiming to bring 250 MWac of solar power and 112.5 MWh of storage online by the end of February 2026. This will begin with an initial export of 85 MW of firm capacity to the grid, providing a much-needed boost of clean energy. Progress is not slowing down, as construction on the project’s second phase has already commenced.
Powering a Greener Future for the Philippines with this solar project
Once fully operational, the MTerra Solar project is expected to have a transformative impact on the nation’s energy landscape. It is projected to supply approximately 10% of Luzon’s total electricity demand, powering an estimated 2.4 million households annually.
Beyond its sheer generating capacity, the project will play a crucial role in environmental stewardship by offsetting an estimated 4.3 million tons of carbon emissions each year. This development is a cornerstone of the Philippines’ ambitious renewable energy targets, which aim for a 35% share of renewables in the energy mix by 2030 and 50% by 2040. The successful energization of MTerra’s first phase is a powerful signal that the country is well on its way to achieving these goals.
