LNG Combined Cycle Power Generation

Incheon LNG Combined Cycle Power Plant

POSCO ENERGY has provided a stable supply of power to the metropolitan
region for about 50 years through its Incheon LNG Combined Cycle Plant.

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Power Plant Overview

Name
Incheon LNG Combined Cycle
Power Plant
Location
363 and 314 Jungbong-daero
405 Beon-gil, Seo-gu, Incheon
Site area
434,173m²
Fuel
LNG(Liquefied Natural Gas)
Installed capacity
3,412MW in total
Feature
Total 7 units

Power Generation Equipment

The Incheon LNG power plant operates a total of seven combined-cycle
power generation units with a total installed capacity of 3,412MW.
Units 7-9 were constructed to replace Unit 1 and 2 and are the latest power generation equipment that is higher
in generating efficiency than the existing LNG combined cycle power plants in Korea.

Installed Capacity of Incheon LNG
Combined Cycle Power Plant_Unit(MW)

인천 LNG복합발전소 설비용량 그래프. 1972년: 324.8MW, 2010년: 1,800MW 1~4호기, 2011년: 3,052MW 1~6호기, 2015년: 3,412MW 3~9호기

Composition of equipment

인천 LNG복합발전소 설비용량 호기별 설비구성 내용이 보여집니다.
Unit	Capacity	COD^*	Composition(MW)
Unit 3	450MW	1999	G/T 3 unit : 300, S/T 1 unit : 150
Unit 4	450MW	2001	G/T 3 unit : 300, S/T 1 unit : 150
Unit 5	626MW	Feb. 2011	G/T 2 unit : 406, S/T 1 unit : 220
Unit 6	626MW	Jun. 2011	G/T 2 unit : 406, S/T 1 unit : 220
Unit 7	420MW	Jul. 2014	G/T 1 unit : 275, S/T 1 unit : 145
Unit 8	420MW	Oct. 2014	G/T 1 unit : 275, S/T 1 unit : 145
Unit 9	420MW	Jan. 2015	G/T 1 unit : 275, S/T 1 unit : 145

*COD(Commercial Operation Date)

Operation

POSCO ENERGY has established its own smart power plant model to bring to life highly efficient,
perfectly reliable and zero-accident power generation facilities,
building on about 50 years of power plant operational technology and know-how.

We combine IoT and Big Data to advanced power plant operational technology to make smart power plant.
POSCO ENERGY applies smart technology to the integrated operation of distribution power generation
to develop solutions for responding effectively to changes in tomorrow’s power generation industry.

The roadmap of Smart Power Plant

[As-is] Experience-based facility operation
- Operational management via accumulated know-how
  and initial design parameters
- Maintenance and repair aligned with manufacturer’s
  recommended standards
[To-be]Data-based facility operation
- Smart operation and optimized management system based on
  operational forecasts built using Big Data analysis technology
- Early detection of faults using real-time breakdown prediction
  modeling

The Principle of LNG Combined Cycle Power Generation

Higher efficiency power generation by using gas turbine and steam turbine

View detail

Operation Principles for the LNG Combined
Cycle Power Plant