Indonesia hydropower station sees milestones 2 months ahead of schedule

Updated: January 26,2024


Employees celebrate the completion of the diversion tunnel.

The diversion tunnel of the Batang Toru HEPP Hydropower Station in Indonesia was completed on Jan 25, 62 days ahead of schedule.

The main tunnel has a total length of 12.24 kilometers, with the maximum diameter of the excavation section reaching 10 meters. There is a total of six sub-tunnels along the main tunnel.

During construction, POWERCHINA mobilized experts to solve challenging problems, such as severe granite alternation and continuous water seepage from the sub-tunnels, and completed the work more than two months ahead of schedule.

The Batang Toru HEPP Hydropower Station has a total installed capacity of 510 megawatts and an average annual electricity generation of 2,228.14 gigawatt-hours over multiple years. It is the largest hydropower station currently under construction in Indonesia and will play a crucial role in alleviating the strain on the country's electricity supply.

Moreover, the power station harnesses clean and renewable hydropower, improving the energy structure on Sumatra Island, where the predominant energy sources are currently oil and gas-fired generators.

Additionally, the construction and operation of the power station are expected to create over 3,000 jobs, stimulating the local economy and promoting the development of the local tourism industry.