Bangkok Hydropower Energy Storage Project

To mitigate the impact of intermittent wind and solar power generation, the Electricity Generating Authority of Thailand (EGAT) plans to invest 90 billion Thai baht (approximately 2.6 billion USD) in expanding pumped-storage hydropower plants at three dams. BANGKOK – The Electricity Generating Authority of Thailand (Egat) has announced plans to transform three additional hydropower dams into large-scale energy storage facilities, or "batteries," as part of a 90-billion-baht investment to support Thailand''s clean energy initiatives.

What is pumped storage hydropower (PSH) project in EGAT?

This project aims to address power supply gaps caused by intermittent solar and wind energy, explained Tawatchai Sumranwanich, Egat’s deputy governor. The initiative involves converting Chulabhorn Dam in Chaiyaphum, Vajiralongkorn Dam in Kanchanaburi, and Kathun Dam in Nakhon Si Thammarat into pumped storage hydropower (PSH) facilities.

What is pumped storage hydropower (PSH)?

This effort aims to stabilize the clean energy supply, supplementing solar and wind power, which are subject to weather fluctuations. Egat's feasibility study focuses on implementing pumped storage hydropower (PSH) technology at the dams. Deputy Governor Tawatchai Sumranwanich explains that PSH involves two reservoirs at different elevations.

Will EGAT convert three hydropower dams into giant energy storage facilities?

Egat plans to convert three hydropower dams into giant energy storage facilities, supporting Thailand’s renewable energy needs through a 90-billion-baht pumped storage hydropower project.

What is pumped storage hydro power plant?

The pumped-storage hydro power plant helps increase flexible dispatch, support Grid Modernization to maintain Energy security of the country. 1. Srinagarin Dam Unit 4-5 2. Bhumibol Dam Unit 8 3. Lamtakong Jolabha Vadhana Unit 1-4 1. Chulabhorn Pumped-Storage Hydro Power Plant (3 Units) 2. Srinagarind Pumped-Storage Hydro Power Plant (3 Units)

How does a pumped-storage hydro power plant work?

Water cycles is controlled by pump in a closed loop between the upper and lower reservoirs, using surplus energy at times of low demand. During periods of high electrical demand, the stored water is released through turbines to produce electric power. The pumped-storage hydro power plant helps

How does PSH technology work at Lamtakong jolabha Vadhana dam?

The PSH technology, which Egat successfully implemented at Lamtakong Jolabha Vadhana Dam, stores energy by moving water between reservoirs at different elevations. When electricity demand is low, excess energy pumps water to the upper reservoir, which is then released to generate electricity during high-demand periods.

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