Wright names undersecretary replacement in DOE shakeup

By Brian Dabbs | 10/20/2025 06:29 AM EDT

Alex Fitzsimmons is the new acting undersecretary of Energy as the department overhauls its priorities under Secretary Chris Wright.

Department of Energy headquarters in Washington

Department of Energy headquarters in Washington. Francis Chung/E&E News

The Department of Energy on Friday tapped Alex Fitzsimmons, head of the department’s Office of Cybersecurity, Energy Security, and Emergency Response, as the new DOE acting undersecretary.

The appointment comes just days after POLITICO’s E&E News broke the news that former undersecretary Wells Griffith was relieved of his duties.

In a statement Friday, Energy Secretary Chris Wright said Fitzsimmons “has served as a critical leader across the Department.”

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“I look forward to working with him as we continue delivering President Trump’s bold energy agenda,” Wright said. “We wish Wells Griffith success in his future endeavors.”

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