Regulators in the Philippines have suspended grid charges for certain energy storage systems during emergencies to support grid reliability.

The Energy Regulatory Commission confirmed the temporary move on July 15, allowing qualified ESS facilities to be exempted from the payment of power delivery service charges on electricity drawn from the grid solely for storage and later reinjection to support grid operations, particularly during periods of supply constraints.

The ERC said the policy is designed to address how transmission charges are applied to ESS under emergency conditions, recognising that energy drawn for storage is not consumed but temporarily absorbed and later returned to the grid.

The temporary suspension applies only to ‘qualified ESS storage intake energy’ for electricity drawn down for storage activities such as battery charging, pumped-hydro operations and similar technologies intended for grid support or reinjection.

Electricity used for final consumption remains subject to regular transmission charges, while other applicable fees are not covered by the suspension to preserve cost recovery mechanisms and avoid market distortions.

Facilities looking to benefit from the suspension must first be registered with the National Grid Corporation of the Philippines.

ERC chairperson and CEO Francis Saturnino Juan said the decision was a targeted response to ensure that regulatory policies keep pace with the evolving role of energy storage in maintaining grid stability.

“This reform allows energy storage to be used more effectively in times of need, helping stabilise supply and ultimately protect consumers from volatility.

“Our goal is to support grid reliability and energy security while upholding fairness, transparency, and consumer protection.”