Energy storage associated to wind farms in a two-tariff structure bidding tender

In a tender for wind farm concession, energy prices must be determined by the bidding company to ensure wind energy project profitability. In a two-tariff structure tender, an energy storage system associated to the studied wind farm may, in some cases, presents an added value to the project by increasing its benefits while maintaining the same proposed energy prices. The project benefits are calculated as a function of the bidding prices and the energy storage system characteristics. Finally, this paper presents diagrams defining the above-mentioned project benefits and gives a comparative analysis of the economical performance of several energy storage technologies.