Board Chair and Chief Executive Officer

John Larsen is Board Chair and Chief Executive Officer (CEO) of Alliant Energy Corporation (NASDAQ: LNT). John joined the company in 1988 as an electrical engineer. Over his 35-year career at Alliant Energy, he has held leadership roles in engineering, operations, energy markets, technology, customer experience and strategy.

In 2010, John was named Senior Vice President – Generation. At that time, he also became President of Wisconsin Power and Light Company. In 2015, John stepped into a new expansive role: leading efforts related to technology, development, generation construction, economic development, customer service and account management.

In 2018, in recognition of his leadership and accomplishments, John was named President of Alliant Energy Corporation. As President, John had critical responsibilities – including leading technology and strategic planning functions – to help the company respond more rapidly to opportunities and deliver greater value to customers.

In January 2019, John was named President and Chief Operating Officer of Alliant Energy Corporation. In this role, John led the development of the company’s strategy to understand customers’ unmet needs more clearly. This work led to the development of new products, services and markets designed to bring long-term value to the communities served by the corporation.

As CEO, John has delivered strong financial and operational performance through unparalleled events, including the impacts of the COVID-19 pandemic and severe weather events such as Winter Storm Uri and the 2020 derecho windstorm, one of the worst storms in the company’s history. The company completed and integrated two acquisitions into the non-regulated businesses of the corporation during this time. John’s leadership also influenced the development of the company’s purpose – to serve customers and build stronger communities.

John firmly believes that how the company delivers on its purpose reflects their broader responsibility – to deliver safe, reliable and cleaner energy, as well as care for the communities they proudly serve. Alliant Energy plans to eliminate all coal from its generation mix by 2040 and has set an aspirational goal to achieve net-zero emissions from the electricity the company generates by 2050. This transition will ensure customers have access to a more resilient energy grid and a diverse, sustainable energy mix.

John is a strong advocate of fostering community vitality through diversity and economic development. John is an active member of the Business Roundtable, serving on the energy and environment subcommittee. He is a signatory of the PwC CEO Action for Diversity and Inclusion pledge. He serves as a Board Member of the Greater Madison Chamber of Commerce and an Emeritus Member of Junior Achievement of Wisconsin.

John also serves on the Board of Directors for CUNA Mutual Group, ATC Management Inc., the Edison Electric Institute and the Electric Power Research Institute.

John received a bachelor’s degree in Electrical Engineering from the University of North Dakota.


February 2023 – Present Board Chair and CEO, Alliant Energy Corporation

July 2019 Chair, President and Chief Executive Officer, Alliant Energy Corporation; CEO – Wisconsin Power & Light Company; CEO – Interstate Power & Light Company

January 2019 President and Chief Operating Officer Alliant Energy Corporation; CEO – Wisconsin Power & Light Company; CEO – Interstate Power & Light Company

January 2018 President – Alliant Energy Corporation; President – Wisconsin Power & Light Company

2015 – 2017 President – Wisconsin Power & Light Company; Senior Vice President – Business Development and Ops Support

2010 – 2015 President – Wisconsin Power & Light Company; Senior Vice President – Generation

2008 – 2009 Vice President – Generation

2004 – 2008 Vice President – Technical and Integrated Services

2003 – 2004 Managing Director – Generation 

2000 – 2002 Managing Director – Electrical Engineering and Asset Management

1988 – 2000

  • General Manager – Electrical Engineering and Ops Support 
  • General Manager – Integrated Resources
  • Team Leader – Energy Delivery Process Re-Engineering
  • Team Supervisor – Substation Engineering
  • Group Leader – Transmission Engineering
  • Electrical Engineer – Transmission and Substation

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