Integration of wind power into existing power grids and electricity markets is a technical and economic challenge due to its variable nature. Therefore, it requires an additional backup capacity. Wind power and battery storage are complementary of each other. This study investigated the utilization of a lithium-ion battery storage system to mitigate day ahead bid deviations and market integration issues resulting from intermittent nature of wind power in Turkey. Data of an existing 30 MW wind farm is used for the study and having added Lithium-ion batteries has been contemplated. Financial analyses were performed by considering the lithium-ion investment, variable costs and current market prices. NPV of both systems were found positive. It shows that with declining battery prices, storage systems become more applicable and the need for energy storage regulation for storage system to enter the market is presented.