Thailand’s draft 2024 Power Development Plan sets a goal of 10,485MW/26,010MWh of battery storage by 2037, a sharp scale-up from just two operating BESS pilot projects totaling 37MW/37MWh.
New energy-market rules are meant to unlock that investment by widening market access, including direct PPAs that give third parties grid access and make storage part of a more flexible electricity system.
EGAT says storage is needed to lift renewables from 25% of Thailand’s 2025 power mix to 70% by 2050, with batteries favored for 0.5- to 4-hour grid services and pumped hydro for 4- to 12-hour use.
Thailand starts from a limited base: by end-2024 it had three utility-scale solar-plus-storage projects with 345MWh of BESS and no standalone battery projects, lagging regional leaders such as the Philippines and Vietnam.
The long-delayed PDP is now expected to clear government steps in August and reach parliament before a possible October release, making it the key policy test for Thailand’s net-zero-by-2050 energy strategy.
As Thailand plans a 10.5 GW battery boom, can it build a recycling industry fast enough to prevent a toxic waste crisis?
Beyond batteries and solar, why is Thailand now quietly adding small nuclear reactors to its 2050 net-zero energy plan?
Can Thailand's new energy rules avoid Vietnam’s regulatory pitfalls to secure the massive investment needed for its green transition?
Powering Thailand’s Future: The Race to 26 GWh of Battery Storage by 2037
Overview
Thailand is driving an ambitious energy transition by recognizing the vital role of battery energy storage systems (BESS) in achieving its clean energy and decarbonization goals. Experts highlight that pairing solar energy—supported by Thailand’s strong solar irradiation—with batteries is the optimal solution for a reliable power system. To support this shift, Thailand is strategically mobilizing significant investment, with energy investment projected to rise sharply in the coming decades. This approach aims to build a robust, renewable-dominated power system, positioning Thailand as a regional leader in sustainable energy and economic competitiveness.