Clean Energy

Creating eco-friendly energy for a cleaner future

GS EPS realizes a sustainable future with eco-friendly energy

GS EPS makes a sustainable future with eco-friendly energy, such as LNG, biomass, and photovoltaic power generation, and also continues to develop technologies and invest in facilities to expand the transition to eco-friendly power generation for achieving Net-zero.

Driving greenhouse gas reduction activities
Investment review for hydrogen-premix and carbon capture
Driving the biomass cogeneration plant project in the industrial complex
Driving Korea's first direct photovoltaic PPA business

Natural Gas
Biomass
Solar Energy

Leading the eco-friendly power generation
with clean fuel LNG

LNG, a natural gas, is an eco-friendly fuel that induces fewer air pollutants and carbon emissions than coal and oil. GS EPS utilizes LNG as a fuel to produce green and low-carbon energy for a clean environment in the future.

GS EPS leads eco-friendly energy with a stable LNG supply and Korea's most efficient power generation

We build a stable portfolio through fuel supply contracts, including direct gas import and average rate systems.
GS EPS generates and supplies eco-friendly energy with the highest efficiency level in Korea by operating high-efficiency combined cycle power plants with a total capacity of 2,400MW.

Dangjin Unit 1

- Korea's first private combined cycle power plant
- Installed capacity of supplying electricity to approximately 1.05 million households in the metropolitan area
- Composed of two 175MW gas turbines, one 188MW steam turbine, and two heat recovery steam generators

Installed capacity: 538MW

Dangjin Unit 2

- A high-class efficiency domestic power plant with an installed capacity of supplying electricity to approximately 1.07 million households in the metropolitan area
- Composed of two 180MW gas turbines, one 190MW steam turbine, and two heat recovery steam generators

Installed capacity: 550MW

Dangjin Unit 3

- Korea's first power plant where an H-Class gas turbine with a power generation efficiency of more than 60% was introduced (Based on lower heating value)
- Installed capacity of supplying electricity to approximately 800,000 households in the metropolitan area
- Composed of one 275MW gas turbine, one 140MW steam turbine, and one heat recovery steam generator

Installed capacity: 415MW

Dangjin Unit 4

- Composed of an H-Class gas turbine with a power generation efficiency of more than 60%, using directly imported gas (Based on lower heating value)
- A highest-class efficiency domestic power plant with an installed capacity of supplying electricity to approximately 1.76 million households in the metropolitan area
- Composed of two 294MW gas turbines and one 315MW steam turbine

Installed capacity: 903MW

Principal of LNG combined cycle power plant

LNG combined cycle power plants burn natural gas for the first generation, and simultaneously the exhaust heat from the first step makes steam. The high-temperature and high-pressure steam spins the turbine to generate secondary high-efficiency electricity.

Gas turbine
Heat Recovery Steam Generator(HRSG)
Steam turbine

Gas turbine
Gas turbines use natural gas as the main fuel to generate electricity and supply high-temperature combustion gases to a heat recovery steam generator and an array recovery boiler (HRSG).
- Air from outside is compressed.
- The mixture of compressed air and fuel is burned in a combustion chamber.
- The combusted hot air rotates the turbines and generators to produce electricity.
- The electricity generated is stepped up to the proper voltage and delivered to the substation.

Heat Recovery Steam Generator(HRSG)
HRSG utilizes gas turbine exhaust gas to make steam.
- The exhaust gas from the high-temperature gas passage flows into the HRSG.
- The HRSG utilizes the gas turbine exhaust gas to make steam and sends it to the turbine.

Steam turbine
The steam produced in the HRSG rotates the turbine and generator to produce electricity.
- Depending on the steam pressure, steam moves to a high, medium, or low-pressure turbine.
- The condenser condenses the steam passing through the low-pressure turbine and converts it into water.
- The electricity generated is stepped up to the proper voltage and delivered to the substation.

You can learn more about the power generation principle in the PC or Pad version.

Creating clean energy from biomass, a renewable organic matter

Biomass is an eco-friendly energy source that uses resources more efficiently and minimizes the impact of global warming. It is because carbon dioxide during fuel use is absorbed through photosynthesis and converted into new biomass, creating a carbon cycle.
GS EPS is advancing net-zero and producing sustainable clean energy through eco-friendly biomass power generation.

GS EPS strives for environmental protection and sustainable generation by utilizing waste wood and plant residues as an energy source

Woodchip
Wood pellet
PKS

Woodchip

Woodchips are renewable energy fuels obtained by recycling waste wood from living/construction or hard-to-use trees in chip form. It is an economical, eco-friendly energy source compared to oil and natural gas.

GS EPS stably supplies renewable energy through eco-friendly biomass power generation

GS EPS constructed Biomass Unit 2 in 2021 and now operates 210MW of biomass plants.

Bio Unit 1

- Asia's first 100MW biomass power plant
- Composed of CFBC and steam turbine. Using PKS and wood chips as fuel

Generation capacity: 105MW

Bio Unit 2

- Composed of CFBC and steam turbine, same as the Bio Unit 1
- Using PKS and wood chips as fuel

Generation capacity: 105MW

Principal of biomass power generation

In biomass power generation, renewable raw materials such as plants and industrial by-products are burned to produce steam. This steam rotates turbines to produce electricity.

Fuel supplying facility
Circulating Fluidized Bed Combustion Boiler(CFBC)
Steam turbine
Power generation and transmission
Seawater supplying facility

Fuel supplying facility
It transports the fuel needed to generate electricity into the boiler combustion chamber.
- The fuel from the truck is stored in the fuel storage.
- The fuel is supplied to the boiler through the fuel transport facility, followed by combustion.

Circulating Fluidized Bed Combustion Boiler(CFBC)
It makes steam from the heat produced during bioenergy combustion.
- It transfers heat via bio-fuel in the boiler and circulation of the fluidized bed.
- The generated heat makes steam and sends it to the steam turbine.

Steam turbine
The steam produced in the HRSG rotates the turbine. The generator connected to the rotating shaft generates electricity.
- The steam passes through the high-pressure turbine to the low-pressure turbine.
- The condenser condenses the steam passing through the low-pressure turbine and converts it into water.

Power generation and transmission
The electricity generated by the power generator is sent to the substation through a transformer.
- The electricity generated is stepped up to the proper voltage and delivered to the substation.
- It is sent to the substation via power lines.

Seawater supplying facility
It exchanges vapor emitted from the steam turbine with seawater in the condenser and provides cooling water to recover steam into water.

You can learn more about the power generation principle in the PC or Pad version.

Brightening a sustainable future with photovoltaic solar
energy, an infinite resource

Power generation from renewable photovoltaic solar energy sources mitigates the effects of climate change by reducing greenhouse gas emissions. GS EPS protects the natural ecosystem by generating sustainable energy through photovoltaic power generation.

Photovoltaic power generation makes realizing eco-friendly energy production and environmental protection possible simultaneously

GS EPS generates eco-friendly energy through 2.0MW scaled photovoltaic power generation. It is equivalent to planting about 400,000 pine trees, reducing carbon dioxide by about 1,200 tons per year, making the earth greener.

GS EPS leads the transition to renewable energy through photovoltaic power generation

Dangjin Photovoltaic power plant

- Installation of photovoltaic power generation facilities on rooftops and idle sites at Dangjin plant

Installed capacity: 2.0MW

Principle of photovoltaic power generation

Photovoltaic power generation is an eco-friendly method of generating electricity by converting light energy into electricity through solar panels.

Solar panels
Inverter
Transformer
Transmission

Solar panels
It converts sunlight energy into electricity.

Inverter
It converts DC power delivered from the solar panels into (AC) power for connection to the home or commercial power grid.

Transformer
It changes the AC power voltage converted through the inverter before the power grid connection.

The electricity generated is stepped up to the proper voltage and delivered to the substation.

Transmission
The electricity boosted by the transformer is sent to the substation via the power line.

You can learn more about the power generation principle in the PC or Pad version.

GS EPS is looking for partners interested in the eco-friendly energy business Business inquiry

Clean Energy

GS EPS realizes a sustainable future with eco-friendly energy

Leading the eco-friendly power generation with clean fuel LNG

GS EPS leads eco-friendly energy with a stable LNG supply and Korea's most efficient power generation

Principal of LNG combined cycle power plant

Creating clean energy from biomass, a renewable organic matter

GS EPS stably supplies renewable energy through eco-friendly biomass power generation

Principal of biomass power generation

Brightening a sustainable future with photovoltaic solar energy, an infinite resource

GS EPS leads the transition to renewable energy through photovoltaic power generation

Principle of photovoltaic power generation

Leading the eco-friendly power generation
with clean fuel LNG

Brightening a sustainable future with photovoltaic solar
energy, an infinite resource