The Japanese electricity market: a generation prospective
With the introduction of the power exchange and the opening of the electricity retail, Japanese power generators have new options to increase revenues. To be able to take advantage of those possibilities fully, generation companies face the challenge to create a special structure inside the organization that, manages the electricity trading, the real time operation and the back office functions. In this paper, the authors refer the Japanese power exchange model and analyze the market rules adopted by the Japanese electricity industry to individuate the source of profit, the risk hedging options and benefit for the generation companies. The paper also introduces the work flow that the generation company operators have to follow daily: the developing of the selling strategy, the trading task, the formalization of the power plants dispatch and the submission of the dispatch plan to the transmission companies. Since the generation company has the duty to supply the electricity sold, it is necessary to control the generation assets in the real time to ensure optimal performances and to avoid imbalances between the submitted schedule and the metered production. To effciently perform all the necessary tasks (from contract management and selling strategy development to real time operation), the operation has to be supported by an information system. This information system has to be capable to optimize the generation and contracts portfolio, to communicat with transmission providers and market operators, to collect the metered data in the real time and to dispatch and control each power plant. Due to the changes of market rules and communication protocols, the information system has to be easy to upgrade and flexible to changes; in addition it has to be strongly reliable since it is controlling large size power plants in the real time. The authors propose a computer system framework that allowed the generation company to integrate the necessary functions. The advantages of an integrated system include the reduction of human error, data integrity and improvement of efficiency keeping a high level of flexibility and reliability. The paper concludes with the challenges that the generation companies are still facing and with the prospective in the near future.
Generation operation generation control electricity market contract management control system
Y.Tsukamoto M.Marmiroli
Mitsubishi Electric Corporation Japan
国际会议
桂林
英文
1-5
2009-10-28（万方平台首次上网日期，不代表论文的发表时间）