Portugal established a strong commitment to increase the installed renewable capacity in order to decrease its external energy dependency. These goals are being achieved mainly due to increasing levels of wind power. One of the main characteristics of wind power is the inherent unpredictability and variability. By allowing the energy storage, pumped-hydro units are able to cope with this drawback, promoting the match between generation and consumption. This paper presents a model based on market prices to determine the optimal bidding strategies that enable the total profit maximization of a pumped-hydro unit. It is considered that this unit participates in the Iberian day-ahead electricity market and in the portuguese ancillary services market. The optimal bids of the unit were calculated for scenarios with different levels of wind energy in the day-ahead market. The results showed that most of the income of the pumped-hydro unit was obtained from the spinning reserve market.
[1]
P. Kanakasabapathy,et al.
Bidding strategy for pumped-storage plant in pool-based electricity market
,
2010
.
[2]
Ning Lu,et al.
Pumped-storage hydro-turbine bidding strategies in a competitive electricity market
,
2004,
IEEE Transactions on Power Systems.
[3]
A.M. Gonzalez,et al.
Stochastic Joint Optimization of Wind Generation and Pumped-Storage Units in an Electricity Market
,
2008,
IEEE Transactions on Power Systems.
[4]
Rajat K. Deb.
Operating Hydroelectric Plants and Pumped Storage Units in a Competitive Environment
,
2000
.
[5]
Mark O'Malley,et al.
Impact of pumped storage on power systems with increasing wind penetration
,
2009,
2009 IEEE Power & Energy Society General Meeting.