Front of the Meter – ECO STOR

Nuvation Energy prototyped and built an energy storage system using second life Nissan Leaf batteries. The batteries were no longer sufficient for powering electric vehicles. However, at 70% state of health, they were perfect for use in stationary energy storage. Using the second life batteries, our team built a behind-the-meter energy storage system at Nuvation Energy’s headquarters in Silicon Valley. There are several electric vehicle charging stations in the parking lot, where employees plug in their vehicles when they get to work. Unfortunately, this tends to be during peak demand time, when it costs more to use electricity.

ECO STOR asked Nuvation Energy to design and deliver a containerized Battery Energy Storage System (BESS) that utilized forty used Nissan Leaf EV battery packs. This EV battery Second Life application was used in Norway for transmission and distribution upgrade deferral. Nuvation delivered a custom 1MW / 700 kWh BESS that is currently in operation at a utility substation. The BESS includes Nuvation Energy’s nController EMS (Energy Management System), which is managed by a cloud-based energy dispatch and bid scheduler. Nuvation also provided a custom controller for each Nissan Leaf pack.