Prime Infrastructure Holdings Inc, an infrastructure company led by Philippine billionaire Enrique K Razon Jr, plans to develop a solar-plus-storage project in the Philippines with a capacity of 2,500 MW to 3,500 MW.

The project will be executed by Terra Sular Philippines, a subsidiary of Terra Renewables Holdings Inc, a subsidiary of Prime Infra and Solar Philippines Power project Holdings Inc. The facility will benefit from a battery energy storage system (BESS) with a capacity between 4,000 MWh and 4,500 MWh. Prime Infra calls it the world's largest solar-plus-storage project.

Prime Infra said today that the solar park has been awarded a 20-year contract to supply power from an 850-megawatt portion to domestic utility Manila Power, also known as Meralco. The electricity retailer is expected to start getting power from the 650 MW capacity by 2026, with Terra Solar planning to complete the project in 2027. When fully constructed, the plant will be able to eliminate annual consumption of 1.4 million tonnes of coal or 930,000 litres of oil, according to developer estimates.