The unexpected pandemic eruption in March 2020, the European efforts to diminish gas house emissions, prolonged drought, higher inflation and war Ukraine clearly have had a strong impact on electricity price. In this paper, we analyze prices Romanian Day-Ahead Market (DAM) along with other variables (inflation, consumption traded volume of DAM) over last three half years an attempt understand i...

This paper proposes strategic biddings for a consumer demand that participates in both the day-ahead and balancing markets. The behavior of is represented by bilevel optimization programming with minimization costs at upper level (UL) subject to co-optimization energy reserve market clearing process lower problem (LL). Using Karush-Kuhn-Tucker (KKT) optimality constraints replace LL problem, mo...

There is a great resolution calling for smart grids in recent years. Introduction of new technologies, that make the network flexible and controllable, is a main part of smart grid concept and a key factor to its success. Transmission network as a part of system network has drawn less attention. Transmission switching as a transmission service can release us from load shedding and remove the co...

With the increasing of renewable energy penetration, adequate reserve capacity is more important to modern power system facing with various uncertain factors. Mobilizing enthusiasm units and demand response participate in auxiliary service can reduce providing pressure conventional supplies, which conducive reliable economical operation system. The factors such as random failure, prediction err...

This paper presents a methodology based on Fuzzy Adaptive Particle Swarm Optimization (FAPSO) for the preparation of optimal bidding strategies corresponding unit commitment by Generation companies (Gencos) in order to gain maximum profits in a day-ahead electricity market. In a competitive electricity market with limited number of suppliers, Gencos are facing an oligopoly market rather than a ...

This paper conducts an empirical analysis of risk premiums in the German day-ahead Electricity Wholesale Market. We compare hourly price data of the European Energy Exchange (EEX) auction and of the continuous over-the-counter (OTC) market taking place prior to EEX. As OTC price data are not publicly available, data provided by the Energy Exchange Austria (EXAA) have been used as a snapshot of ...