Thailand's Draft Power Development Plan Targets 14.5 GW of Battery Storage by 2037

November 1, 2026 | Thailand

Thailand's draft Power Development Plan (PDP) 2026 outlines an ambitious expansion of battery energy storage capacity, with approximately 14,500 MW of battery storage planned for the 2026–2037 planning period.

The proposed storage capacity forms part of a broader plan to add approximately 50,900 MW of new power generation capacity, reflecting Thailand's growing focus on renewable energy integration, electricity system flexibility and long-term energy security.

Battery energy storage systems (BESS) are expected to play an important role in balancing electricity supply and demand, particularly as solar power capacity increases. Storage facilities can absorb excess electricity during periods of high renewable generation and discharge power when demand rises.

However, the development of Thailand's storage market still faces regulatory challenges. While the draft PDP sets out a substantial capacity expansion target, detailed rules governing independent battery storage operators, grid connections and participation in electricity markets are still under development.

In particular, clearer regulations on revenue mechanisms and compensation for flexibility services will be important in determining whether independent storage developers can participate commercially in the market.

The draft plan therefore represents a significant policy direction for Thailand's energy transition, although the proposed 14.5 GW target should not be interpreted as finalized or already committed capacity.

As Thailand continues to develop its power market framework, regulatory clarity and viable commercial models will be essential to attracting investment in large-scale battery storage projects.