ERS Energy Reached 1.5 GWh Storage Capacity
The firm surpassed 1.5 gigawatt-hours in utility-scale storage across South-East Asia following a year of rapid growth.
Updated on Sept. 22, 2026 in Energy
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ERS Energy has officially surpassed 1.5 gigawatt-hours in cumulative battery energy storage system (BESS) capacity throughout South-East Asia. The company achieved this milestone by securing the majority of its project portfolio over the past 12 months.
Why it matters
Expanding storage capacity is a critical requirement for integrating renewable energy into regional grids. Grid flexibility serves as the primary enabler for sustainable growth as power providers transition away from traditional baseload sources.
The 1.5 gigawatt-hour portfolio includes a 520 megawatt-hour installation in Zambales, Philippines, for ACEN Corp and two projects totaling 800 megawatt-hours under Malaysia's Battery Energy Storage Programme.
The players
ERS Energy
A Kuala Lumpur-based firm specializing in the design, financing, and grid integration of utility-scale battery energy storage systems.
ACEN Corp
A renewable energy company that contracted ERS Energy for a 520 megawatt-hour storage project located in Zambales, the Philippines.
The details
ERS Energy manages the full lifecycle of energy storage deployments, covering the initial design phase, project financing, and final grid synchronisation (the process of matching the frequency and phase of the battery output to the main power grid). By partnering with various technology providers and financial institutions, the company integrates large-scale battery systems designed to provide load shifting and frequency regulation to national power networks.
Timeline
Most of the current storage portfolio was secured within the past 12 months.
The Tech Race
The regional expansion follows the deployment criteria set by Malaysia's Battery Energy Storage Programme to modernize national grid infrastructure. ERS Energy is positioning itself as a primary integrator to meet the rising demand for utility-scale storage projects across the region.
These utility-scale projects are designed to stabilize regional power grids, which reduces the risk of intermittent power failures for businesses and residents in the Philippines and Malaysia. These installations do not provide direct residential power storage but serve as critical infrastructure to support national grid reliability.
The takeaway
The company’s rapid scaling demonstrates the growing reliance on large-scale battery systems to manage grid instability in emerging markets. Watch for future capacity announcements as the firm attempts to leverage its existing regional footprint to secure further government-backed energy contracts.
Further reading
For more on the regional shift toward utility-scale power management, explore the latest developments in Energy.
Source note: This article includes information reported by The Star.
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