The Lamtakong Jolabha Vadhana Hydro Power Plant is located on the southern bank of the Lamtakong Reservoir in Pak Chong District. Construction began in December 1995 and was completed in 2001 and operational in August 2002. The power plant and its components were constructed underground to preserve the nature and scenery of the area. The power station is a pumped-storage type and contains two 250 MW reversible pump-generators. Water is a first pumped to the upper reservoir and then during peak-demand hours, it is sent back down to the power station for power production.