In today's busy world we are dependent on batteries to power our phones, computers, cars and multiple electronic devices. Bottom line-they are essential to our daily lives. Yet in the utility world, we're still testing and learning about their true potential and value to the industry and its customers. Battery storage systems can provide multiple benefits to the electric grid. Given the price of battery storage systems, using multiple capabilities is key to making them cost-effective. For example, battery systems can help integrate more renewable energy into the grid and perform other functions such as managing grid and feeder issues, as well as providing back up power to customers. A unique partnership between Xcel Energy, Panasonic and Denver International Airport (DIA) aims to examine complementary value propositions that will maximize a battery's economic potential by providing value for both the utility and customers.