• The Transactions of The Korean Institute of Electrical Engineers
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• v.61 no.4
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• pp.522-533
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• 2012

This paper presents an adaptive strategy of GENCOs for reducing the greenhouse gas by fuel mix change. Fuel mix stands for generation capacity portfolio composed of different fuel resources. Currently, the generation sector of power industry in Korea is heavily dependent on fossil fuels, therefore it is required to change the fuel mix gradually into more eco-friendly way based on renewable energies. The generation costs of renewable energies are still expensive compared to fossil fueled resources. This is why the adaptive change is more preferred at current stage and this paper proposes an optimal strategy for capacity planning based on multiple environmental scenarios on the time horizon. This study used the computer program tool named GATE-PRO (Generation And Transmission Expansion PROgram), which is a mixed-integer non-linear program developed by Hongik university and Korea Energy Economics Institute. The simulations have been carried out with the priority allocation method in the program to determine the optimal mix of NRE(New Renewable Energy). Through this process, the result proposes an economic fuel mix under emission constraints compatible with the greenhouse gas mitigation policy of the United Nations.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.58 no.4
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• pp.708-717
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• 2009

Recently, Korea government decided to introduce RPS (Renewable Portfolio Standard) mechanism which requires electricity providers to gradually increase the amount of renewable energy sources such as wind, solar, bioenergy, and geothermal. As a consequence, it is expected that the long-term fuel mix would be changed to result in more expensive production and the increased production costs would be distributed to the rate payers via electricity tariffs. This paper presents the change in long-term fuel mix in year 2020 with the four RPS scenarios of 3%, 5%, 10% and 20%, and the methodologies for collecting the increased production costs through new tariff schedule. The studies on long-term fuel mix have been carried out with the GATE-PRO (Generation And Transmission Expansion Program) optimization package, a mixed-integer program developed by the Korea Energy Economics Institute and Hongik university. Three methodologies for distributing the production costs to the rate payers have also been demonstrated.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.58 no.3
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• pp.467-477
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• 2009

Renewable Portfolio Standard (RPS) is a regulatory policy that requires the generation companies to increase the proportion of renewable energy sources such as wind, solar, LFG, fuel cell, and small hydro. Recently, Korean government decided to increase the portion of renewable energy to 3% to total electricity generation by 2012 from the current level of 0.13%. To achieve this goal, an innovative plan for market competitiveness would be required in addition to the present Feed-In-Tariff (FIT). That is Korean government has taken it into consideration to introduce a Renewable Portfolio Standard (RPS) as an alternative to FIT. This paper reviews the impact of RPS on the long-term fuel mix in 2020. The studies have been carried out with the GATE-PRO (Generation And Transmission Expansion PROgram) program, a mixed-integer non-linear program developed by Hongik university and Korea Energy Economics Institute. Detailed studies on long-term fuel mix in Korea have been carried out with four RPS scenarios of 3%, 5%, 10% and 20%. The important findings and comments on the results are given to provide an insight on future regulatory policies.

• Proceedings of the KIEE Conference
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• 2008.11a
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• pp.426-428
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• 2008

현재 우리는 화석연료의 고갈 및 에너지 수입 해외의존도의 심화, 최근의 고유가 등으로 신재생에너지원의 개발 및 이용, 보급 확대가 국가적 관심사항이 되고 있으며, 신재생에너지를 전원을 보급하기 위해 노력하고 있다. 정부는 2012년부터 RPS(Renewable Portfolio Standard)를 도입하여 신재생에너지전원의 비중을 설비용량의 5%(발전량의 7%)까지 확대하는 것을 목표로 하고 있다. 따라서 본 연구에서는 가격규제가 아닌, 보급목표를 규제하여 시장에서 가격이 결정되는 RPS를 도입하였을 경우의 현 전력수급계획의 수립절차에 대한 상세한 고찰과 문제점 분석을 통해 우리나라의 RPS를 반영한 최적 전원구성비를 도출하기 위한 방안을 GATE-PRO(Generation And Transmission Expansion PROgram) 모형을 이용하여 모색하고자 한다. 또한 이를통해 우리나라의 RPS도입이 전력수급계획에 미치는 영향을 살펴보고자 한다.

• Proceedings of the KIEE Conference
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• 2008.11a
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• pp.429-431
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• 2008

기후변화협약 체결 당시 개발도상국으로 분류되어 있던 우리나라는 현재 온실가스 감축의무를 부담하지 않고 있으나, 우리나라의 CO2 배출량 및 배출량 증가율을 고려해 볼 때, 제2차 공약기간(2012년$\sim$2016년) 동안의 온실가스 감축의무 부담이 예견되고 있다. 온실가스 감축의무를 이행하기 위하여 정부는 2012년부터 RPS(Renewable Portfolio Standard) 제도를 도입을 고려하고 있다. 신재생에너지전원의 비중을 설비용량의 5%(발전량의 7%)까지 확대를 예상하여, 본 연구에서는 RPS 제도를 도입을 고려할 때 전원구성의 변화를 GATE -PRO(Generation And Transmission Expansion PROgram)모형을 이용하여 알아본 후, 이로 인하여 전기를 사용하는 용도에 따라 6가지 종별로 구분하는 현행 전기요금체계에 미치는 영향에 대하여 알아보고자 한다.