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October 1, 2013

POSCO E&C to construct world’s first underground CCPP in South Korea

POSCO E&C will construct an 800MW underground combined cycle power plant (CCPP) in Seoul, South Korea, which is said to be the world's first underground CCPP.

By admin-demo

POSCO E&C will construct an 800MW underground combined cycle power plant (CCPP) in Seoul, South Korea, which is said to be the world’s first underground CCPP.

To be built under the city, the plant will feature two CCPP units of 400MW being built on the site of the Seoul thermal power plant, which was built in 1930 and demolished in 1982.

"The plant, which is expected to complete by 2016, will generate enough electricity to power 800,000 households."

A POSCO E&C member said the company, in order to place the power generation facilities under the ground, is required to take around 40,000 x 25t truckloads of earth out of the site to excavate an area of 194m in width and 164m in length, with an average depth of 25m.

The ground area (surface) will host a combined cultural complex, featuring an eco-park, sports facilities, performance facilities and a library.

The old Seoul plant was comprised of five units but three of them had been demolished by 1982, while the remaining 380MW units, four and five, are in operation but will stop producing electricity once the new plant becomes operational.

The plant, which is expected to complete by 2016, will generate enough electricity to power 800,000 households and produce 530Gcal/h of heat to meet the district heating needs of 100,000 households across Seoul.

In July 2013, Doosan Heavy Industries & Construction had won a contract from Korea Midland Power to supply main equipment and facilities, including two gas turbines, two steam turbines and two HRSGs for the new units.

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