自由市場における電力取引が電源構成に与える影響のエージェントシミュレーション

抄録

In liberalized markets, policies for renewable energy penetration depend on interactions between utilities and retailers. Multi-agent models have been widely used to analyze such interactions in electricity wholesale markets. However, few studies have been conducted for long periods of time, such as those involving power supply rebuilding. Therefore, this study examines a method to reduce the simulation time of ABM, which represents short-term wholesale power transactions of about one week. By coarsening the market demand, the time of day observed by the agent, and the incremental range of bid prices that the agent can choose, the simulation time can be reduced by up to 75% without affecting the macro trend of the average contract price over a week. Besides when there is only one generating agent of the same type, it may raise its bid price even by reducing the contract quantity. This phenomenon can be prevented by having at least two agents that handle the same type of power source.