A battery energy storage unit at Alliant Energy’s microgrid system in Boaz, WI.

Golden Plains battery energy storage system

We’re building the Golden Plains battery energy storage system (BESS) at the Golden Plains Wind Farm in Kossuth County, Iowa. It can store an additional 75 megawatts, enough to power 80,000 homes for four hours. We expect the Golden Plains BESS to be operational by December 2026.

How does battery storage work?

Battery storage systems charge from the grid when energy demand is low or directly from wind projects when excess renewable energy is abundant. They discharge energy when demand increases, such as on hot summer or cold winter days. The ability to capture and store energy to use when needed improves the overall benefit of renewable resources.

We’re meeting today’s energy needs and building a stronger, more reliable energy future for all. 

Energy storage FAQ

How does battery storage affect our future?

The Golden Plains battery storage project is one more way we’ll deliver safe, reliable energy and help keep bills as low as possible. We’ll be able to store more energy from renewable sources, which will help ensure we have enough energy to support growing demand today and in the future.

As the electric grid evolves, we are leading the way with new and innovative solutions for our customers. We work to integrate new technologies and optimize resources like wind and solar alongside traditional generation systems.

Learn more about energy storage
employee walking near energy storage equipment

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