The Philippines is proposing reforms to the grid code covering its high-voltage power transmission system to enable better integration of renewable energy. It is also planning amendments to its net-metering framework.

The Energy Regulatory Commission (ERC) of the Philippines says it is working to modernize the country’s transmission grid through updates set out in the 2026 edition of the Philippine Grid Code, rules operating the country’s high-voltage power transmission system.

The updated code is geared towards helping the grid accommodate variable renewable energy, including solar, alongside storage technologies such as battery energy storage systems, pumped-storage hydropower and compressed air energy storage.

ERC says it will incorporate new technical requirements for solar-plus-storage plants that use grid-forming inverters, as well as standards applicable to standalone storage installations that use grid-forming inverter technologies, in order to improve grid stability and system response.

Other reforms are set to include new cybersecurity requirements, grid planning standards and expanded reserve and reliability mechanisms.