• Title, Summary, Keyword: Energy arbitrage

Search Result 6, Processing Time 0.033 seconds

Optimal ESS Investment Strategies for Energy Arbitrage by Market Structures and Participants

  • Lee, Ho Chul;Kim, Hyeongig;Yoon, Yong Tae
    • Journal of Electrical Engineering and Technology
    • /
    • v.13 no.1
    • /
    • pp.51-59
    • /
    • 2018
  • Despite the advantages of energy arbitrage using energy storage systems (ESSs), the high cost of ESSs has not attracted storage owners for the arbitrage. However, as the costs of ESS have decreased and the price volatility of the electricity market has increased, many studies have been conducted on energy arbitrage using ESSs. In this study, the existing two-period model is modified in consideration of the ESS cost and risk-free contracts. Optimal investment strategies that maximize the sum of external effects caused by price changes and arbitrage profits are formulated by market participants. The optimal amounts of ESS investment for three types of investors in three different market structures are determined with game theory, and strategies in the form of the mixed-complementarity problem are solved by using the PATH solver of GAMS. Results show that when all market participants can participate in investment simultaneously, only customers invest in ESSs, which means that customers can obtain market power by operating their ESSs. Attracting other types of ESS investors, such as merchant storage owners and producers, to mitigate market power can be achieved by increasing risk-free contracts.

Optimal Generation Asset Arbitrage In Electricity Markets

  • Shahidehpour Mohammad;Li Tao;Choi Jaeseok
    • KIEE International Transactions on Power Engineering
    • /
    • v.5A no.4
    • /
    • pp.311-321
    • /
    • 2005
  • A competitive generating company (GENCO) could maximize its payoff by optimizing its generation assets. This paper considers the GENCO's arbitrage problem using price-based unit commitment (PBUC). The GENCO could consider arbitrage opportunities in purchases from qualifying facilities (QFs) as well as simultaneous trades with spots markets for energy, ancillary services, emission, and fuel. Given forecasted hourly market prices for each market, the GENCO's generating asset arbitrage problem is formulated as a mixed integer program (MIP) and solved by a branch-and-cut algorithm. A GENCO with 54 thermal and 12 combined-cycle units is considered for analyzing the proposed formulation. The proposed case studies illustrate the significance of simultaneous arbitrage by applying PBUC to multi-commodity markets.

Assessing Alternative Renewable Energy Policies in Korea's Electricity Market

  • KIM, HYUNSEOK
    • KDI Journal of Economic Policy
    • /
    • v.41 no.4
    • /
    • pp.67-99
    • /
    • 2019
  • This paper, focusing on the renewable portfolio standard (RPS), evaluates alternative renewable energy policies. We propose a tractable equilibrium model which provides a structural representation of Korea's electricity market, including its energy settlement system and renewable energy certificate (REC) transactions. Arbitrage conditions are used to define the core value of REC prices to identify relevant competitive equilibrium conditions. The model considers R&D investments and learning effects that may affect the development of renewable energy technologies. The model is parameterized to represent the baseline scenario under the currently scheduled RPS reinforcement for a 20% share of renewable generation, and then simulated for alternative scenarios. The result shows that the reinforcement of the RPS leads to higher welfare compared to weakening it as well as repealing it, though there remains room to enhance welfare. It turns out that subsidies are welfare-inferior to the RPS due to financial burdens and that reducing nuclear power generation from the baseline yields lower welfare by worsening environmental externalities.

ESS Optimal Charge-Discharge Schedule Generation Method Using Model Predictive Control Framework (모델예측제어 프레임워크를 이용한 ESS 최적 충방전스케줄 생성기법)

  • Sim, Jin-Yong;Lim, Jong-Mok;Jung, Sug-In;Kim, Jae-Hyun;Hong, Seung-Pyo;Shin, Jae-Ho
    • Proceedings of the KIPE Conference
    • /
    • /
    • pp.232-233
    • /
    • 2019
  • ESS(Energy Storage System)의 도입을 통해 첨두부하의 경감(Peak Shaving)과 일종의 차익거래(Arbitrage) 효과를 실현할 수 있다. 본 논문에서는 경제적 이득의 극대화를 지향하는 ESS 최적 충방전스케줄 생성기법을 제안한다. 제안 기법은 모델예측제어(MPC: Model Predictive Control) 프레임워크를 기반으로 하였고 매트랩 시뮬레이션을 통하여 그 타당성을 검증하였다.

  • PDF

Analysis on Price Driver of Spread and Different Patterns of EUA and sCER (탄소배출권 EUA와 sCER의 가격 차이 패턴 및 스프레드(Spread) 결정 요인 분석)

  • Park, Soonchul;Cho, Yongsung
    • Environmental and Resource Economics Review
    • /
    • v.22 no.4
    • /
    • pp.759-784
    • /
    • 2013
  • Participants can use the allowances and offsets for implementing the compliance in the Emissions Trading Scheme(ETS). There are alternative commodities which are different prices it gives the opportunities to reduce the compliance costs and get the arbitrage. This study analyzes the price driver of spread which is the difference between EUA and sCER using AR-GARCH model, EUA and CER during the Phase 2 in EU ETS. The results show that there are common elements which impacts the EUA and sCER and also different elements between them. EUA and sCER get the effects from energy price and economic criteria such as coal price and financial crisis as common elements. However them get the effects from electric price, policy criteria such as restricted CERs and difference price between EUA and ERU price as different elements. The results shows that spread will be widen if energy price increase, especially oil and electric price give more impacts the spreads. This study has the means that it explains the reason why the spreads will broaden sharply in 2012. And it also suggests the price driver of spread during the whole period of Phase 2. In addition, this study shows that political aspects maybe become the main criteria of price change with structural elements shch as energy price in Korea ETS which starts in 2015.

A Study on Regionalization in the World Crude Oil Markets Using Cointegration and Causality Analysis (공적분과 인과관계 분석을 통한 국제원유시장의 지역화 연구)

  • Kim, Jinsoo;Heo, Eunnyeong;Kim, Yeonbae
    • Environmental and Resource Economics Review
    • /
    • v.16 no.2
    • /
    • pp.213-237
    • /
    • 2007
  • Discussions on regionalization of the world crude oil markets have provided important implications for the establishment of national energy policies. In particular, due to arbitrage trading, if these markets are regionalized, Korea who imports approximately 80% of the annual oil consumption from a single region may be faced with a crucial problem. Therefore, in this study, we analyzed regionalization of the world crude oil markets using causality analysis as well as cointegration method to consider temporal relationship and time lags. To analyze regionalization, we chose Dubai price for the Middle East market, Brent for the European, WTI for the U.S., and Tapis for the East Asian. For the case that long-run equilibrium existed between market prices, we used vector error correction model to analyze causal relationship, and for the case that equilibrium did not exist, we used Hsiao (1981)'s framework that can consider asymmetric time lags in the model for causality analysis. By the results of cointegration analysis, there did not exist long-run equilibrium among Dubai price and the other prices. However, we found the causal relationship among Dubai price and the other prices with one to four weeks time lags. Therefore, in effect, we could conclude that the world crude oil markets are unified supporting Adelman (1984)'s hypothesis.

  • PDF