PUC Commissioners 2025

Commissioners of the PUC

The Minnesota Public Utilities Commission is composed of five commissioners who are appointed by the Governor to serve staggered six-year terms. State law ensures a balanced and diverse commission by stipulating that no more than three commissioners may belong to the same political party. Additionally, at least one commissioner must reside outside the seven-county metropolitan area at the time of appointment. 

One commissioner is designated by the Governor to serve as Chair of the PUC. The Chair provides leadership and ensures the effective functioning of the Commission. 

Commissioner Katie Sieben

Katie Sieben, Chair

Commissioner (Dem) confirmed May 12, 2023
(651) 201-2250
Commissioner John Tuma

John Tuma

Commissioner (Rep)
(651) 201-2220
Commissioner Hwikwon Ham

Hwikwon Ham

Commissioner
(651) 201-2210

PUC as a quasi-judicial body

The PUC functions as a quasi-judicial entity, similar to a court, in exercising its authority, powers, and responsibilities. It must remain objective in determining facts, drawing conclusions of law, making decisions and taking official actions 

Decisions made by the PUC adhere to established guidelines and criteria and are legally enforceable. 

Legal authority 

The PUC’s duties and conduct are governed by Minnesota law, specifically under the provisions outlined in: 

Minnesota Statutes Chapter 216A 

Minnesota Statutes Chapter 216B 

Minnesota Statutes Chapters 216E-G 

Minnesota Statutes Chapter 237