Major Solar and Storage Project in the Philippines Progressing Ahead of Schedule

A large-scale solar and battery energy storage project in the Philippines is moving forward faster than expected, with 54% of the first phase completed just eight months after construction began.

By the end of June, 778 MW of solar capacity had already been installed—surpassing the initial 750 MW target—making it the largest solar installation currently under development in the country. At peak activity, the project mobilized more than 9,500 workers and recorded over 5 million man-hours.

Once finished, the 3.5 GW solar and 4.5 GWh battery storage project will become the world’s largest integrated photovoltaic and storage facility. Located in the provinces of Nueva Ecija and Bulacan on Luzon Island, it will be capable of delivering clean energy to approximately 2.4 million households across the Philippines.

The initial phase also involves the construction of a 500 kV transmission line to connect the facility to the national grid via the Nagsaag-San Jose line. This phase is scheduled for completion in 2026, with a second phase to follow in 2027.

The project is being implemented by multiple local and international partners, including engineering and procurement contractors and energy storage providers. A $600 million investment from a UK-based infrastructure firm in 2024 provided a key financial boost to the development.

Once both phases are operational, the initiative is expected to contribute significantly to the country’s renewable energy goals, enabling the project’s developers to achieve their 2030 capacity target ahead of schedule.