Energy and climate

Planning for a sustainable future

(Updated Q1 2021)

Our Clean Energy Blueprint is our guide to accelerate our transition to renewable energy and modern energy technologies to enhance the economic health and environment in the communities we serve.

We plan to add 1,089 megawatts (MW) of solar generation in Wisconsin by the end of 2023. So far, we’ve announced twelve solar projects that span nine counties in Wisconsin.

Last year, we announced our plans to add approximately 400 megawatts (MW) of solar generation in Iowa by 2023. Solar projects are currently being identified and will be announced later in 2021.

Increasing solar in our energy mix benefits our customers. Solar helps us avoid long-term costs, promote job and business growth and reduce environmental impact. Solar, complemented by wind production, provides customers with reliable and sustainable energy for years to come.

Our Sustainable Energy Plan and Aspirational Net-Zero Goal

Iowa wind reaches 1,000 MW milestone

(Added Q1 2021)

In fall 2020, we completed our plan to add 1,000 megawatts (MW) of wind production in Iowa, several months ahead of schedule and within budget. We achieved this goal when we finished our 130-MW Richland Wind Farm in Sac County, located in west-central Iowa. Two of our wind farms earned Envision® Platinum ratings and we followed Envision guidelines for others that we built.

Our Iowa energy company now owns and operates more than 1,300 megawatts of wind. This investment in wind energy for Iowa customers generates significant financial benefits through tax revenue for communities and lease payments to landowners. Our company overall owns and operates nearly 1,800 megawatts of wind, making Alliant Energy the third-largest owner-operator of regulated wind in the United States. Learn more about our wind development.

Alliant Energy’s owned wind generation at the end of 2020:

wind farms
homes powered

Low-Carbon Resources Initiative

(Added Q1 2021)

As Alliant Energy moves forward with our Clean Energy Vision, we have joined with a multi-faceted group of like-minded partners in a five-year effort to swiftly develop and demonstrate low- and zero-carbon energy technologies. The Low-Carbon Resources Initiative (LCRI) is spearheaded by the Electric Power Research Institute (EPRI) and the Gas Technology Institute (GTI).

It will look at new ways to reduce energy-related carbon emissions from the electric and gas industries. Some of the areas LCRI will advance are clean hydrogen, bioenergy and renewable natural gas – with the goal to develop affordable technologies across all industries to reduce carbon emissions associated with climate change. The results of this important work will help guide our company as we work toward our aspirational goal of net-zero carbon dioxide (CO2) emissions from the electricity we generate by 2050.

LRCI low-carbon logo

Battery provides storage, benefits grid

We energized a battery in Wellman, Iowa, in December 2019 to more sustainably meet our customer’s energy needs. The project not only avoids rebuilding a portion of the local energy grid – it also has expanded the amount of solar power that can be used on the system. Operating the battery as a buffer will level out power fluctuations caused by changes in the sun’s intensity. This new technology also optimizes charging times, reducing costs and provides backup power from the grid improving both energy affordability and reliability for all customers.

Solar and battery pilot project saves dollars

Finding creative energy solutions for a customer was central to a project that was energized in January 2020: bringing power to a remote building near Sauk City, Wisconsin. The building is owned by the Wisconsin Department of Natural Resources. The power line running to it needed to be rebuilt. The cost: $400,000. Our project team found that a combination of solar panels and battery storage could do the same thing. The cost: less than $200,000. Plus, we added a renewable energy option. Win-win!

We’re electrifying for a cleaner environment and cost savings

(Added Q1 2021)

Electric vehicles (EVs) provide long-term savings through reduced fuel costs and lower maintenance. They also produce fewer direct emissions, allowing everyone to benefit from a cleaner environment. We’ve announced 100% of our active light-duty fleet vehicles will be electric by 2030.

To benefit communities, we’ve also installed EV charging stations in the Wisconsin communities of  Beaver Dam and Fond du Lac and donated chargers to DeForest. In Iowa, we’ve partnered with the Cedar Rapids Community School District to bring electric school buses to the community and further explore vehicle-to-grid technology. This innovative EV program creates cleaner energy and keeps costs affordable for customers.

Our electrification by the numbers


level 2 charging ports
plug-in hybrid electric fleet vehicles
hybrid + battery electric fleet vehicles
level 3 fast-charging stations
hybrid electric aerial bucket lifts
electric forklifts
electric utility terrain vehicles
electric lifts and pullers

Our newest solar garden in Iowa tests battery storage

(Added Q1 2021)

More than 9,500 solar panels generate clean energy at our Marshalltown Solar Garden in Marshalltown, Iowa. The pilot project combines solar power and a battery to generate, store and deliver electricity to customers. The facility sits next to our natural gas-fired Marshalltown Generating Station (MGS).

The solar field adds power to the grid when the sun is up and then our battery allows our customers to continue using this renewable energy resource in the evening when the sun is down. This complements our highly efficient MGS facility. This project provides our customers with sustainable, affordable, flexible, reliable and resilient energy.

Dog team helps us monitor wind farm wildlife

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