geopolitics-00288
Paektusan Hero Youth Power Station Project. Source-38north

Analysis by Peter Makowsky, Jenny Town and Samantha Pitz

Background

The series of three Paektusan Hero Youth Power stations and Sodusu Hydroelectric Power Station Dam are located along the Sodusu River, which delineates the boundary between the Ryanggang and North Hamgyong provinces in northeastern North Korea. The Paektusan series, in particular, was built to provide electricity to the burgeoning Samjiyon County, and perhaps the adjacent Hyesan County, the sacred land of Mt. Paektu (Paektusan), where the juche revolution started. They are representative of the types of hydroelectric power station dams found in North Korea’s eastern provinces. Hydroelectric power stations with similar layouts can be found in South Hamgyong Province and include the grander Kumjingang series (Kumjingang Hungbong Dam, Kumjingang Kuchang Youth Power Station Dam, the Kumjingang Power Station Dam and a fourth, yet-to-be-named dam and power station), and the less complex series of the Kumyagang Army-People Power Station No.1 Dam and Kumyagang Power Station No.2 Dam.

Other large dams can be found in these provinces, but most have been ineffective in delivering their promised output of electrical power to the region, mainly due to poor engineering practices, subpar materials and the harsh climate, which ranges from extreme cold in winter to severe drought in the summer. The one possible exception may be the newly constructed and highly touted Orangchon Power Station, which has yet to be brought online.

Sodusu Power Station Dam, which lies 10 km north of the Paektusan series, falls into the latter category of large dams. While the Sodusu reservoir water levels were normal at the time of its construction through 2016, a marked dropped was observed in early 2017 that has continued through the present. The drop was likely caused by the lengthy period of drought experienced throughout the region, and by cracks within the dam itself, a casualty due to subpar materials used in its construction.further downstream.

The series of three Paektusan Hero Youth Power stations and Sodusu Hydroelectric Power Station Dam are located along the Sodusu River, which delineates the boundary between the Ryanggang and North Hamgyong provinces in northeastern North Korea. The Paektusan series, in particular, was built to provide electricity to the burgeoning Samjiyon County, and perhaps the adjacent Hyesan County, the sacred land of Mt. Paektu (Paektusan), where the juche revolution started. They are representative of the types of hydroelectric power station dams found in North Korea’s eastern provinces. Hydroelectric power stations with similar layouts can be found in South Hamgyong Province and include the grander Kumjingang series (Kumjingang Hungbong Dam, Kumjingang Kuchang Youth Power Station Dam, the Kumjingang Power Station Dam and a fourth, yet-to-be-named dam and power station), and the less complex series of the Kumyagang Army-People Power Station No.1 Dam and Kumyagang Power Station No.2 Dam.

Other large dams can be found in these provinces, but most have been ineffective in delivering their promised output of electrical power to the region, mainly due to poor engineering practices, subpar materials and the harsh climate, which ranges from extreme cold in winter to severe drought in the summer. The one possible exception may be the newly constructed and highly touted Orangchon Power Station, which has yet to be brought online.

Sodusu Power Station Dam, which lies 10 km north of the Paektusan series, falls into the latter category of large dams. While the Sodusu reservoir water levels were normal at the time of its construction through 2016, a marked dropped was observed in early 2017 that has continued through the present. The drop was likely caused by the lengthy period of drought experienced throughout the region, and by cracks within the dam itself, a casualty due to subpar materials used in its construction.

The series of three Paektusan Hero Youth Power stations and Sodusu Hydroelectric Power Station Dam are located along the Sodusu River, which delineates the boundary between the Ryanggang and North Hamgyong provinces in northeastern North Korea. The Paektusan series, in particular, was built to provide electricity to the burgeoning Samjiyon County, and perhaps the adjacent Hyesan County, the sacred land of Mt. Paektu (Paektusan), where the juche revolution started. They are representative of the types of hydroelectric power station dams found in North Korea’s eastern provinces. Hydroelectric power stations with similar layouts can be found in South Hamgyong Province and include the grander Kumjingang series (Kumjingang Hungbong Dam, Kumjingang Kuchang Youth Power Station Dam, the Kumjingang Power Station Dam and a fourth, yet-to-be-named dam and power station), and the less complex series of the Kumyagang Army-People Power Station No.1 Dam and Kumyagang Power Station No.2 Dam.

Other large dams can be found in these provinces, but most have been ineffective in delivering their promised output of electrical power to the region, mainly due to poor engineering practices, subpar materials and the harsh climate, which ranges from extreme cold in winter to severe drought in the summer. The one possible exception may be the newly constructed and highly touted Orangchon Power Station, which has yet to be brought online.

Sodusu Power Station Dam, which lies 10 km north of the Paektusan series, falls into the latter category of large dams. While the Sodusu reservoir water levels were normal at the time of its construction through 2016, a marked dropped was observed in early 2017 that has continued through the present. The drop was likely caused by the lengthy period of drought experienced throughout the region, and by cracks within the dam itself, a casualty due to subpar materials used in its construction.

Sodusu Dam and Power Station

As mentioned earlier, the Sodusu Dam and Power Station falls into the category of being a large dam, built before 2010, although the exact time frame cannot be determined from the available, archived, commercial satellite imagery. It was built during a period when rapid construction and subpar materials were used, which is a probable contributing factor to the drop in the reservoir’s water level. But aside from that, there are some unusual characteristics to the dam and its adjacent facilities.

On the west side of the dam, there are several support buildings, but also spoil piles, which suggests the presence of an underground facility. (These features are similar to those found at Taechon Power Plant No. 2, located on the Taeryong River, as described in the second report of this series, albeit not as extensive.) Given there is no obvious above surface generator hall, the conclusion supports the presence of an underground generator facility such as those seen at Taechon and at the Jangjagang Power Station located on the Janga (Changja) River. However, unique to this site is a line of four, irregularly spaced, probable concrete towers, located in the area of the spoil piles. Each appears to have square or cut-parabolic dishes on them. Further up the hill to the west is what appears to be a parallel series of ground vents similar to what one might expect to see on top of a bunker, however, no bunker entrance is discernable, and therefore, this facility and the towers remain a bit of an enigma. There is also a probable administration or support building at the top of the hill with a memorial monument located nearby.

South of the probable underground facility, there is a tower pump station located near the edge of the reservoir. Similar tower pump stations can be observed at other reservoirs, where their function is to draw water from the reservoir and feed it into water tunnels or penstocks. In this case, however, water is being discharged from the tower into the reservoir, an opposite action of what would be expected; underground power stations usually discharge water below the dam, as it is the downward flow of water that powers the generator turbines. Further, the discharged flow is directed into the reservoir through an open trough-like mechanism, which was not visible when the reservoir level was high, but which is visible when the water level is down. In addition, the discharge fluid is very warm. On at least four occasions when the reservoir was completely frozen over, a very large melt area was observed around the discharge trough; March 30, 2013, December 30, 2017, February 6, 2018, and March 4, 2019, which adds to the enigmatic nature of these facilities.

Conclusion

The series of three Paektusan Hero Youth Power Stations were constructed to support the burgeoning northeast region of North Korea. Completed in mid-2016, they incorporate the country’s newest and proven design and building techniques, meant to satisfy the area’s needs. Their success in delivering the necessary electrical power to the City of Samjiyon will likely have an impact on that city’s success.

On the other hand, the Sodusu Hydroelectric Power Station and Dam, located to the north on the same river, has a less understood role in terms of its contribution to the region, as its associated enigmatic function requires further study.

References

Hamish MacDonald. “Paektusan Hero Youth Power Station No. 3, Complete and Operational.” NK News. May 2, 2016. https://www.nknews.org/2016/05/paektusan-hero-youth-power-station-operational-kcna/.
“Kim Jong Un Provides Field Guidance to Paektusan Hero Youth Power Station No. 3.” Korean Friendship Association USA. April 25, 2016. https://www.kfausa.org/kim-jong-un-provides-field-guidance-paektusan-hero-youth-power-station-no-3/.