KOSEP Energy
Conservation Leader
Recognized as an exemplary energy-saving power company

Korea South-East Power Co. has earned a reputation for leading roles in conserving energy it has played amid oil price hikes.
KOSEP (President-CEO Park Hee-gab) is credited with having implemented massive cost reduction and energy preservation projects in the past several years.
Samchonpo Thermal Power Plant, KOSEP's major site, has succeeded in improving the productivity of its four units by 52,000kW, saving 21.3 billion won worth of heavy oil per annum. Yosu Thermal Power Plant, an expensive heavy fuel oil-fired facility, has also saved about 6.7 billion won worth of energy annually by replacing an old turbine with a new one.
Bundang Combined Cycle Power Plant, an LNG-fired facility, has installed equipment designed to collect waste heat coming out of the plant chimney and converting it into steam for a district heating system as part of its efforts to promote energy service company (ESCO) projects.
Muju Pumped Storage Power Plant has developed a 400kW, mini-hydroelectric power facility using irrigation water at its lower dam, leading to a reduction in approximately 100 million won worth of oil per year.
A case in point is the power company's operation of an energy preservation system using power line communication network (PLC), bringing about a 30 percent reduction in energy.
KOSEP and Korea Electric Power Data Network (KDN) developed the energy preservation system, upgrading PLC technology late last year under their joint project. The energy preservation system has been operated at the Bundang Combined Cycle Power Plant since last March. The facility can cut down on 690MWh per annum in energy usage.
The system involves the formation of a network between main equipment and on-site control equipment using PLC. Lighting devices are checked and controlled by a company wide intranet that can be used any time and any place.
Most power plants have inefficient lighting control: possible energy waste stemming from large-capacity lighting devices, simply controlled by timers and sensors and inconvenient manual operation in time for sun-rise and sunset. But the energy preservation system has adopted a pattern of automatic turn-on and turn-off, depending on a list of classifications to maximize energy-saving effects.
The energy reservation system is rated to have contributed to the development of PLC technologies. It is the first of such application of PLC technology.
KOSEP and KDN are jointly trying to expand the scope of applying the energy reservation system. They plan to work on the application of such areas as CCTV control, entry control, heating/air-conditioner control and maximum power load management.
KOSEP plans to expand the application of the energy preservation system to other power facilities.
The power company is committing itself to implement new and renewable energy development projects. KOSEP is carrying out a project to build a maritime hydroelectric power plant with a capacity of 3,000kwp with completion slated for next year, the first of its kind, using wastewater from a power plant. A plan to build a solar power facility capable of generating 100kwp at the ash treatment site of Samchonpo Power Plant is under way.
KOSEP plans to invest about 3 billion won into four tasks, including the one on the commercialization of a 3,000kW-class hydroelectric facility using power plant wastewater during a seven-year period.

Solar energy
KOSEP signed an agreement with Chansung Energy Co. to install a solar energy cell system at Bundang Combined Cycle Power Plant on July 11.
Nearly 90 percent of solar energy is collected not only on a clear day but also in cloudy weather to provide indoor lighting. It is a technology contributing to an improvement of indoor environment.
KOSEP assisted Chansung Energy's project to develop the technology and commercialize it. The power company provided support to the new and renewable energy company in acquiring a New Technology certificate on technology.
An experiment on the solar cell system, conducted at the Bundang Combined Cycle Power Plant and Samchonpo Thermal Power Plant last year, turned out to be effective in saving energy. KOSEP's decision to expand the solar energy cell system could save 690MWh in electricity per annum. nw

KOSEP President-CEO Park Hee-gab