Research on the Medium term Market Decision of Electricity Retailer Considering Risk

This paper studies the decision of purchase and sale of the electricity retailers in the medium term market. The pricing model considers the impact of selling price both on market share and user side load transfer. The electricity retailers purchase electricity from the medium term market and the pool. The electricity retailers sell electricity to users through the electricity sale contract in the TOU price. According to the level of risk aversion, the electricity retailers are divided into aggressive, active, robust, cautious, and conservative types. On the impact of spot price and load fluctuation, the uncertain parameters are transformed into deterministic scenes through the multi-scene technology, and the risks of the electricity retailers are measured by the model of Conditional Value at Risk (CVaR). Aiming at maximum profit and minimum risk, a market decision model of electricity retailer is established. In addition, this paper analyzes the impact of different cases on the operation of the electricity retailers through case study.