Terra Solar Philippines Inc. (TSPI), a unit of MGEN Renewable Energy Inc. (MGreen), signed a battery energy storage systems (BESS) supply agreement with Huawei International Pte. Ltd. (Huawei) on Friday to deliver the latest BESS for the MTerra Solar project.
This is Huawei’s biggest BESS project for an integrated solar photovoltaic (PV) and BESS facility.
“By combining MTerra Solar’s vast solar power generation capacity with Huawei’s cuttingedge energy storage solutions, we are creating a powerful synergy that will optimize grid operations, ensuring a consistent and uninterrupted power supply,” said Meralco PowerGen Corp. president and chief executive Emmanuel Rubio.
Meralco PowerGen, the power generation arm of Manila Electric Co., is the parent firm of MGreen. The agreement covers the entire 4,500-megawatt-hour capacity of the MTerra Solar project.
MTerra Solar will combine 3,500 megawatt-peak of solar PV with 4,500 MWhr of battery, capable of supplying clean energy to over 2 million households. The project broke ground in Nueva Ecija, signaling progress in developing the facility.
It is set to begin commercial operations in phases, with phase 1 scheduled for February 2026 and phase 2 in February 2027.
The collaboration reinforces the Philippines’ potential to be a global leader in renewable energy innovation, with MTerra Solar set to become the world’s largest integrated solar PV and battery storage facility.
Huawei’s expertise in large-scale renewable energy projects is exemplified by its work on the Red Sea New City solar storage microgrid in Saudi Arabia.
Spanning 100 kilometers of grid infrastructure, the independent microgrid operates entirely on solar energy and battery storage, delivering over 1 terrawatt-hours of green electricity in its first year.
The project exhibits Huawei’s capability in providing advanced energy solutions. Huawei brings its cutting-edge expertise in energy storage to the MTerra Solar project by equipping the facility with state-of-the-art BESS.
The system includes containerized batteries and essential auxiliary components such as fire suppression systems; heating, ventilation, and air conditioning; battery management systems; power conversion systems; and energy management systems.
It will also include step-up transformers to connect to the 34.5 kV busbar at the main substation.
These systems will allow MTerra Solar to store excess electricity generated during low-demand periods and supply it back to the grid during peak demand, ensuring a more stable and resilient energy supply.
“This capability not only enhances grid stability but also enables the seamless integration of variable renewable energy into the national energy grid,” said Dennis Jordan, president and chief executive of MGreen.
