The government has tightened its push toward a cleaner energy mix, requiring all prospective variable renewable energy (VRE) plants with a capacity of at least 10 megawatts (MW) to integrate an energy storage system (ESS) as part of project development.
The mandate, issued by the Department of Energy through Department Circular No. DC2026-02-0008, updates the country’s ESS policy framework and embeds storage as a core component of future renewable energy installations.
In a statement, the DOE said the revised framework reinforces the country’s commitment to a just energy transition by ensuring the systematic deployment of ESS across both grid-connected and off-grid areas.
The move is expected to enable higher renewable energy penetration while preserving power quality and system reliability — two critical concerns as solar and wind capacity continue to expand.
Beyond simply storing excess electricity, the DOE emphasized that ESS facilities are encouraged to incorporate advanced grid-support technologies. These include grid-forming inverters that help stabilize voltage and frequency — functions traditionally provided by conventional power plants.
Such capabilities are designed to counter the inherent variability of renewable energy output, optimize dispatch, reduce generation losses, and enhance the grid’s ability to maintain consistent power quality and overall system stability.
“Energy storage is not only about storing surplus energy, it is about strengthening the grid’s capability to absorb more renewable while maintaining reliability,” Energy Secretary Sharon Garin said.
She added that the new policy formally integrates ESS into system planning and project development, paving the way for more efficient infrastructure rollouts and better outcomes for consumers.
The directive signals a decisive shift in how renewable projects will be structured going forward — with storage no longer treated as optional, but as a foundational element of the country’s evolving power architecture.
