Economic performance of contracts in electricity markets: A fuzzy and multiple criteria approach

In competitive electricity markets, consumers and suppliers are exposed to price risk, quantity risk, as well as other risks such as credit risk. These risks can be managed through an adequate portfolio of contracts. The goal of the approach proposed is to help a market player to appraise portfolios of contracts from the point of view of the economic performance-that measures the potentiality of gains and the potentiality of losses-taking into account the multidimensional aspect of risk, the vagueness and nuances of the decision maker's preferences, and the different kinds of uncertainties. The three steps proposed are portfolio construction, portfolio evaluation, and portfolio ranking. This requires modeling of uncertainties, contracts, and decision maker's preferences. The example of a large consumer of electric energy and a comparison with the value-at-risk system are presented. The proposed approach is applied to appraise different strategies for a Swiss utility.     

电力市场条件下的工业负荷管理

讨论了竞争性电力市场的模式以及电价在竞争性电力市场中的波动性;论述了竞争性电力市场中的工业电力终端用户与电力供应商之间可能签订的合同;以某国的工业负荷GISASA为案例,分析了在竞争的电力市场中,电力用户为了避免或减少风险,如何通过合同和合适的产品战略获得电力供应和进行电力负荷管理.     

山东省工业用电单耗分析

对山东省工业发展及用电状况进行分析,计算出山东省工业及工业14个主要行业的用电单耗；根据工业用电单耗和各行业用电单耗的变化．分析经济结构调整、科学技术进步、能源结构调整等因素对工业用电单耗的影响分析结果表明．经济结构调整和科学技术进步是促使工业用电单耗不断下降的主要动力;能源结构调整也会对工业用电单耗产生影响.