World's Largest Integrated Solar and Battery Storage Facility Launches in Nueva Ecija, Powering Millions of Filipino Homes

MGen has officially inaugurated Phase I of the Meralco Terra (MTerra) Solar Project in Gapan City, Nueva Ecija, establishing what the company positions as the world's largest operational integrated solar and battery energy storage facility deployed across a single geographic location.

The comprehensive MTerra Solar development—spanning operations across Nueva Ecija and Bulacan provinces—represents a ₱200-billion investment milestone designed to transform the Philippines' renewable energy capacity.

Upon full operational completion, the facility is projected to deliver 3,500 megawatts of peak solar generation capacity paired with 4,500 megawatt-hours of advanced battery energy storage infrastructure. This combined renewable system is engineered to supply clean electricity to over 2.4 million households nationwide.

The project's integration of utility-scale solar generation and grid-scale battery storage addresses critical energy challenges across the Philippines, including peak demand management, grid stability enhancement, and reduced reliance on conventional generation sources.

Phase I's successful inauguration represents a significant advancement in the country's transition toward renewable energy dominance. The phased deployment approach allows for systematic capacity expansion while enabling MGen to optimize operational protocols and storage utilization strategies across successive development stages.

The MTerra Solar Project aligns with broader Philippine renewable energy initiatives aimed at increasing clean power penetration, improving electricity security, and supporting long-term grid modernization. The facility's scale and technological sophistication position it as a landmark investment in Southeast Asian renewable energy infrastructure.

Upon completion, the project is expected to contribute substantially to the nation's renewable energy generation portfolio while demonstrating the viability of large-scale solar-battery integration models for meeting growing electricity demand across densely populated regions.