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Carbon neutral energy solution of Daehan Steel
where the heat of steel returns as green breath, GREF


Carbon neutral energy solution
where the heat of steel returns as green breath, GREF

The Reason why
an Iron Casting Factory
Built a Plant Farm

The steel industry consumes the most energy and emits the most carbon during manufacturing processes.
GREF came up with a way to reduce carbon footprint to protect the environment and food resources.

Previously, the high thermal energy used to produce iron and greenhouse gases as byproducts from the process were largely emitted to the air.
We started with the idea that we could secure sufficient energy for other industries by recovering this.

Share of energy discarded as industrial waste heat

in total energy consumption in Korea(%)

2016, Korea Energy Economics Institute 

Comparison of the total amount
of energy consumed by industrial sectors

2019, Korea Energy Economics Institute 

Metal manufacturing industry 

31,430,000 toe

Agriculture, forestry, and fisheries 

3,420,000 toe

*toe : Ton of oil equivalent

The Reason why
an Iron Casting Factory
Built a Plant Farm
The steel industry consumes the most energy and emits the most carbon during manufacturing processes. GREF came up with a way to reduce carbon footprint to protect the environment and food resources.
Previously, the high thermal energy used to produce iron and greenhouse gases as byproducts from the process were largely emitted to the air. We started with the idea that we could secure sufficient energy for other industries by recovering this.

Share of energy discarded
as industrial waste heatin total energy

consumption in Korea(%)

2016, Korea Energy Economics Institute 


Comparison of the total amount of energy consumed by industrial sectors

2019, Korea Energy Economics Institute 

Metal manufacturing industry

31,430,000 toe

Agriculture, forestry, and fisheries

3,420,000 toe

*toe : Ton of oil equivalent

An Energy Transition
Solution Found
in Discarded Waste Heat

We found a solution that fully utilizes the large amount of heat and energy emitted into the air during steel production processes. We convert the heat and energy into “growth energy” needed for greenhouses to keep our planet green.

Annual fuel cost that can be saved by using waste heat from rolling processes as an energy source

Approx.  KRW110 million

Annual CO2 emissions that can be reduced through energy recovery from smart farms

235 tCO2 e

*tCO2e : Tonne of Carbon Dioxide Equivalent

An Energy Transition
Solution Found
in Discarded Waste Heat
We found a solution that fully utilizes the large amount of heat and energy emitted into the air during steel production processes. We convert the heat and energy into “growth energy” needed for greenhouses to keep our planet green.
Annual fuel cost that can be saved
by using waste heat from rolling processes
as an energy source

Approx. KRW110 million

Annual CO2 emissions that can be reduced
through energy recovery from smart farms

*tCO2e : Tonne of Carbon Dioxide Equivalent 

235 tCO2e

Innovation
in the energy transition,
a new beginning
As new energy infrastructure connecting between industries, people, and ideas, GREF will serve as a starting point for an environmentally friendly future. Beyond the innovation in the energy transition, including a plan to build Korea's largest fully energy self-sufficient vertical farm, we will become the new driving force for a sustainable future.

A Green Mechanism
Building a Greener
Tomorrow

Green Foundry For Next, GREF

Innovation
in the Energy Transition,
a New Beginning

As new energy infrastructure connecting between industries, people, and ideas, GREF will serve as a starting point for an environmentally friendly future. Beyond the innovation in the energy transition, including a plan to build Korea's largest fully energy self-sufficient vertical farm, we will become the new driving force for a sustainable future.

A Green Mechanism
Building a Greener
Tomorrow

Green Foundry For Next, GREF

Energy Solution

We develop sustainable energy technology
by using industrial waste heat.

Agricultural Solutions

Research new seeds and technologies.

Smart Farm Crops 

Crops cultivated with future technologies.

Open Innovation Lab

People who study sustainable energy
and food are gathered together.