Meralco PowerGen Corp. (MGen) announced Monday its plans to develop a 49-megawatt (MW) battery energy storage system (BESS) in Toledo, Cebu, as part of its efforts to enhance grid stability and support the country’s energy transition.
The company stated the facility will play a key role in ensuring reliable and balanced power delivery across the Visayas grid, particularly in maintaining the quality and safety of electricity reaching end-users. MGen noted that given the region’s growing demand and the increasing share of variable renewable energy, battery energy storage has become essential in managing system reliability and ensuring sufficient grid support during peak and off-peak hours.
“This project is part of our broader commitment to strengthen the reliability of the grid and accelerate the country’s transition to a cleaner and more sustainable energy future,” said Emmanuel Rubio, MGen president and chief executive. “Battery energy storage will be critical in managing variability in supply and demand, particularly as we integrate more renewable energy into the system.”
The company expects to complete the first phase of its BESS facility, with a 25MW capacity, in Toledo, Cebu by 2026, and the balance in 2027, subject to regulatory clearances.
The Toledo project is MGen’s second BESS project in the country. MGen’s planned MTerra Solar includes a large-scale 4,500 megawatt-hour (MWh) energy storage development in Nueva Ecija, which is designed to support its 3,500 megawatt-peak (MWp) solar power pipeline in Luzon.
MGen operates a diverse portfolio of power generation assets equipped with advanced technologies. Its main subsidiaries include Global Business Power Corp. (MThermal), MGEN Renewable Energy Inc. (MGreen) and MGEN Gas Energy Holdings Inc. (MNatural Gas). It also holds stakes in PacificLight Power (PLP), a liquefied natural gas facility in Singapore, and SP New Energy Corp. (SPNEC), a renewable energy company. MGen has also invested a 40.2 percent stake in an integrated LNG facility in Batangas.
Across its portfolio, MGen has a combined net sellable capacity of 5,061.3 MW from traditional and renewable sources as of June 2025.
