What is the Columbia Energy Storage Project?

Utilizing cutting-edge technology designed by Energy Dome, the Columbia Energy Storage Project will boost grid stability, improve resilience and deliver enough electricity to power approximately 18,000 Wisconsin homes for 10 hours on a single charge.

Are battery energy storage systems worth the cost?

Battery Energy Storage Systems (BESS) are becoming essential in the shift towards renewable energy, providing solutions for grid stability, energy management, and power quality. However, understanding the costs associated with BESS is critical for anyone considering this technology, whether for a home, business, or utility scale.

What is Alliant Energy's Columbia Energy Storage Project?

Alliant Energy’s revolutionary Columbia Energy Storage Project, using Energy Dome’s safe, reliable CO2 battery, represents a significant advancement in energy storage while bolstering the power grid to benefit Wisconsin customers.

Which energy storage technologies are included in the 2020 cost and performance assessment?

The 2020 Cost and Performance Assessment provided installed costs for six energy storage technologies: lithium-ion (Li-ion) batteries, lead-acid batteries, vanadium redox flow batteries, pumped storage hydro, compressed-air energy storage, and hydrogen energy storage.

Where will a new energy storage system be built?

The energy storage system will be built south of Portage, Wisconsin in the town of Pacific and near Alliant Energy’s existing Columbia Energy Center. Construction is expected to begin in 2026 and be completed by the end of 2027.

How do energy storage systems work?

Then, when the stored energy is needed, the system converts the liquid CO2 back to a gas, which powers a turbine to create electricity. The energy storage system will be built south of Portage, Wisconsin in the town of Pacific and near Alliant Energy’s existing Columbia Energy Center.