Thailand

Ratchaprapha Dam Power Station— 240 MW Hydroelectric

HydroRenewableVerified: Feb 2026

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Ranking as the 82nd largest power generation facility out of 293 plants in Thailand, the Ratchaprapha Dam stands as a critical component in the country's energy landscape. With a substantial capacity of 240 MW, this hydroelectric facility contributes to 0.24% of Thailand's total generation capability, which amounts to 99,456 MW. Positioned in a region that is rich in hydro resources, the Ratchaprapha Dam is notable for being the 15th largest hydroelectric plant among 45 in the country, underscoring its importance in the national grid. The plant utilizes the gravitational force of water to produce electricity, which is a highly efficient and environmentally friendly method of generation. This technology harnesses the potential energy of water stored in the dam, converting it into kinetic energy as it flows, which drives turbines to generate power. The significance of the Ratchaprapha Dam is further highlighted by its proximity to other power generation facilities within a 50-kilometer radius, including the Surat Thani Gas Plant with a capacity of 244 MW, and two other hydroelectric plants, both also named Rajjaprabha, each with a capacity of 240 MW. This cluster of facilities enhances the stability of the regional grid, providing a diversified energy mix that includes both gas and hydro generation. In the context of Thailand's energy profile, which predominantly relies on natural gas, the Ratchaprapha Dam plays a pivotal role in balancing the energy supply with renewable sources. The plant is operated by EGAT, Thailand's Electricity Generating Authority, which has been instrumental in developing the nation's power infrastructure. Commissioned in the late 20th century, the facility continues to support local communities and industries by providing a reliable source of electricity. As Thailand moves towards a greener energy future with a focus on increasing the share of renewables, the Ratchaprapha Dam exemplifies the potential for hydroelectric power to contribute sustainably to the national grid while reducing reliance on fossil fuels.