CAGAYAN de Oro City- The National Grid Corporation of the Philippines (NGCP) is advancing Project Airbag, a battery energy storage initiative designed to give the power grid added support during tight supply conditions and prepare for possible electricity shortages during the 2027 El Niño.
The project will use battery energy storage systems (BESS) to store available electricity and release it when demand rises or the grid comes under pressure.
The technology can provide quick-response support during short-term supply gaps and system disturbances.
The initiative comes as the Visayas continues to face tight power supply, worsened by simultaneous outages of power generators.
While additional power plants remain necessary to meet long-term demand, NGCP said battery storage could help reduce immediate risks as new generation facilities and other infrastructure are developed.
“Project Airbag is not being presented as the overall solution to generation adequacy,” NGCP said.
The company stressed that batteries do not generate electricity and cannot replace sufficient dependable power supply during prolonged shortages.
However, they can provide the grid with added flexibility while the country works to develop more generation capacity.
Preparing for El Niño
NGCP said Project Airbag is not limited to the Visayas, as the company is also looking at the needs of the wider Philippine grid ahead of the possible effects of El Niño in 2027.
Reduced rainfall and lower reservoir levels could affect hydroelectric power generation, potentially tightening electricity supply in areas that depend on water resources.
Battery systems can store electricity during periods of higher supply, including when solar power production is strong during the day, and release it during evening peak demand or when hydroelectric output declines.
NGCP said the early deployment of battery storage is intended to strengthen the grid before supply conditions worsen, rather than wait for shortages to occur.
Building a more flexible grid
NGCP said battery storage could also help address the country's growing electricity demand and changing mix of power sources.
Strategically located battery systems can provide quick support during grid disturbances, help maximize the use of existing transmission facilities, and shift available electricity from periods of high production to times of greater demand.
The company said battery storage could become part of the country's long-term transmission infrastructure and grid resilience strategy, subject to regulatory approval.
Opening the grid to more energy sources
Project Airbag is also intended to help the transmission system accommodate electricity from a wider range of sources, including large power plants, embedded generation, distributed energy resources, net-metered facilities and rooftop solar installations.
NGCP said the goal is to allow more energy sources and qualified participants to contribute to the country's power supply, where technically and commercially feasible.
This could create opportunities for households, businesses, distribution utilities, communities and agricultural users to take part in the broader energy system as technology and grid capabilities improve.
Battery storage could help integrate these diverse energy sources more efficiently and reliably.
NGCP said greater use of domestic and renewable energy resources could also reduce the country's exposure to fluctuating imported fuel prices and strengthen energy security.
The company reiterated that battery storage will complement, not replace, the development of additional dependable power generation needed to meet the country's growing electricity demand.
