Camp Atterbury Microgrid Hybrid - Pumped Hydro Storage in Indiana, USA

Camp Atterbury Microgrid Hybrid is a pumped hydro storage facility located in Indiana, United States, owned by Duke Energy Indiana LLC. With a capacity of 7 MW, it is a small-scale energy storage plant that plays a role in local grid management and microgrid operations. The facility operates as a pumped hydro storage system, which stores energy by pumping water to an upper reservoir and releasing it to generate electricity when needed. While specific technical details are limited, pumped hydro storage is a mature technology with high round-trip efficiency. In the US, such facilities must comply with safety standards like NFPA 855 for energy storage systems and UL 9540 for battery systems, though pumped hydro has distinct safety profiles. This plant contributes to grid reliability by providing peak shaving and frequency regulation services. Its location in Indiana supports the region's energy mix, and as a microgrid hybrid, it enhances energy resilience for Camp Atterbury. The facility's operational status underscores its role in the evolving energy storage landscape.

Pumped hydro storage facilities like Camp Atterbury Microgrid Hybrid involve water management and land use for reservoirs. While they provide clean energy storage, they can affect local hydrology and ecosystems. The facility's location in Indiana, away from densely populated areas, reduces some risks. However, any energy storage system must address thermal runaway risks, though pumped hydro is less prone than lithium-ion systems. Grid interconnection for peak shaving and frequency response is a key operational benefit.