Ben Fowke will retire in August after 10 years as chief executive of Xcel Energy Co., his tenure marked by the company's industry-leading role in the nation's move from fossil fuels to clean energy.
Bob Frenzel, Xcel's current president and chief operating officer, will succeed him as CEO, the company announced Thursday.
Fowke, 63, will remain on the Minneapolis-based company's board and serve as executive chairman, focusing on national energy policy.
Fowke was named Xcel Energy's chair, president and CEO in August 2011.
"I really think it has been a great decade," Fowke said in an interview. "One of the things I am most proud of is our leadership in the clean-energy transition."
Fowke hailed from the Colorado utility New Century Energies, which merged with Xcel in 2000. When Fowke took the baton in 2010 from retiring Xcel CEO Richard Kelly, the company had already established itself as a leader in wind energy.
Fowke pushed Xcel considerably further, with the company regularly ranking as one of the nation's top wind-power utilities.
In 2011, 53% of Minnesota's in-state electricity production came from coal and 13% from wind. By 2020, coal generation had fallen to 25% while wind had risen to 22%, according to Minnesota Department of Commerce data.