In recent years, the share of renewable energy sources in the electricity networks worldwide has been in
a constant increase. Wind power generation is predominated among all renewable energy sources-based generation. However, when compared with non-renewable generation its share in the electricity market is still limited. Mainly due to its lack of multiple services provision. Battery energy storage systems, on the other hand, have proven the ability to provide a wide range of services in the electricity market.

The main emphasis of this project is put on the investigation if the battery energy storage systems
ability in multiple service provision could help increase the wind power share in the generation mix. For that, a hybrid system is hypothetically formulated taking into consideration battery and wind turbines technologies. Furthermore, an operational scheduling strategy which could be used by the battery energy storage system operator is used to evaluate project profitability. Considering electricity price forecast, grid arrangement and optimum unit commitment strategy and size. Moreover, to create a good business case with at least as possible uncertainties, battery energy storage system lifetime model is developed. With the model, battery degradation behavior is account for in the different services provision schemes estimated.

Analysis of the practical operation scheduling scheme developed shows a good ability in capturing the possible revenue streams from the different market while taking into consideration stochastic variables such as price. From the different market bidding strategies formulated is observed revenue values close to 18 Million dollars when a battery is providing all services in the electricity market. However, the degradation effect is also high to accommodate the rapid energy change in the battery.

Finally, it is concluded that with the integration of battery energy storage, multiple services provision are added to the wind power generation. Furthermore, the degradation should be bound by the unit commitment problem. This technology is representing an attractive solution, as high revenue streams can be derived from its multiple services provision capabilities. With the increasing research on the topic in combination with new electricity market rules to accommodate system rapid response, an increase in battery deployment is expected in the future. Not only as a utility-scale storage solution but in other applications as well.