Doosan Enerbility, KOSPO Agree to Secure Local Manufacturing for Hydropower Components

Doosan Enerbility and Korea Southern Power (KOSPO) recently signed a memorandum of understanding (MoU) to secure technological self-reliance for the local engineering and manufacturing of pumped-storage hydropower (PSH) plant components. Doosan will secure these components via partnerships with leading players, while KOSPO provides demonstration sites for locally manufactured products and develops sales channels.

“With more PSH plants being built recently, the need is also growing for technological self-reliance in plant component engineering and manufacturing,” said Yeonin Jung, Vice Chairman and COO of Doosan Enerbility. “By collaborating with KOSPO, which has provided us with the environment for conducting product demonstrations, we plan to expedite the localization of PSH plant components manufacturing.”

In June 2025, Doosan signed a KRW 330 billion supplier agreement with Korea Hydro & Nuclear to deliver components to the Yeongdong Pumped-Storage Hydropower Plant Units 1 and 2. The company also entered a partnership with Austria-based Andritz to help South Korea obtain technological independence for the engineering of PSH plant components.

The South Korean government’s 11^th Basic Plan for Long-Term Electricity Supply and Demand dictates a combined PSH installed capacity of 5.7 GW built by 2037. The MoU intends to increase the percentage of locally manufactured components for domestic PSH projects, eventually bolstering the Korean industrial ecosystem.

Sihwa tidal power plant | Image Credit: K-Water

Supplying Polish Plant

In early September 2025, the ORLEN Group awarded Doosan Škoda Power €125 million to supply two 55-MW back-pressure steam turbines, a two-pole generator, and conduct project execution for its heat-and-power plant in Plock, Poland. The project’s civil works phase will modernize two turbine sets, units TG4 and TG5, with full completion scheduled for 2029. Previously, Doosan completed the 70-MW Orlen Plock TG7 project in 2017.

Specifically, the order includes two single-casing extraction DST-S10 back-pressure steam turbines and a two-pole generator, with the first turboset component deliveries taking place in early 2025. Doosan will also supply transformers, bus ducts, and install two underground 30-kV high-voltage cable interconnections between the existing and new switch gear. Lastly, the company will execute foundation construction using micropiles.

Doosan must complete reconstruction while six existing units, boilers, and technological equipment remain in full operation, presenting a significant challenge that requires extensive coordination. The company has been on the Plock construction site for eight months, nearly completing its civil works phase before following phases. TG4 assembly may be fully completed by year-end 2025, with operational handover scheduled for October 2026.

LNG Storage Tanks

Also, the Korea Gas Corp. awarded Doosan Enerbility KRW 560 billion to build three LNG storage tanks and ancillary facilities, each with 270,000-kiloleter capacity, for the Dangjin LNG Terminal Phase 2 project in South Chungcheong, South Korea. Construction will begin in September 2025, with completion anticipated by December 2029.

Building out the Dangjin LNG storage tank infrastructure falls under the broader LNG Production Base Project at the Dangjin Seokmun National Industrial Complex, which intends to improve South Korea’s LNG supply-demand balance. During Phase 1 in 2021, Doosan Enerbility completed roof air-raising work for four LNG tanks and is currently executing internal construction work.