Abstract：The risk of purchasing electricity for power supply company is mainly expressed in the uncertainty of price in the spot market, and the risk of selling electricity in the uncertainty of time-of-use (TOU) electricity price and its impact on load changes and sales of electricity. In general, the spot market price and demand-side load are positively correlated. The higher load level is, the higher the spot market price is. TOU electricity price can decrease load demand for the peak periods, thereby reducing electricity price for the peak periods and the cost of purchasing electricity for power supply companies. But TOU electricity price cuts down electricity sales of power supply companies for the peak periods, which results in sales income falling. All these uncertainty bring a risk to the purchasing and selling electricity of power supply companies. The mathematical models are established in this paper to analyze the impact of this risk. A numeric example shows that fixing on the reasonable price gap and purchasing proportion of contract market can avoid market risks and improve operational efficiency for supply companies.
宋艺航, 谭忠富, 于超, 姜海洋. 需求侧峰谷分时电价对供电公司购售电风险影响分析模型[J]. 电工技术学报, 2010, 25(11): 183-189.
Song Yihang, Tan Zhongfu, Yu Chao, Jiang Haiyang. Analysis Model on the Impact of Demand-Side TOU Electricity Price on Purchasing and Selling Risk for Power Supply Company. Transactions of China Electrotechnical Society, 2010, 25(11): 183-189.
2010, Vol. 25 
