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Exhibit 24-A

POWER OF ATTORNEY



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I, KEVIN G. MOUG, do hereby constitute and appoint JOHN D. ERICKSON and
GEORGE A. KOECK, or any one of them, my Attorney-in-Fact for the purpose of
signing, in my name and on my behalf as Chief Financial Officer and Treasurer
of Otter Tail Corporation, the Annual Report of Otter Tail Corporation on Form
10-K for its fiscal year ended December 31, 2003, and any and all amendments to
said Annual Report, and to deliver on my behalf said Annual Report and any and
all amendments thereto, as each thereof is so signed, for filing with the
Securities and Exchange Commission pursuant to the Securities Exchange Act of
1934, as amended.

Date: March 8, 2004

| |  |                  
| |  | -----------------
| |  | /s/ Kevin G. Moug
| |  |                  
| |  | Kevin G. Moug    

In Presence of:

/s/ Jackie Rogness

/s/ Sandy Greenlund





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##### 



POWER OF ATTORNEY



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I, JOHN C. MAC FARLANE, do hereby constitute and appoint JOHN D. ERICKSON
and GEORGE A. KOECK, or any one of them, my Attorney-in-Fact for the purpose of
signing, in my name and on my behalf as Chairman of the Board of Otter Tail
Corporation, the Annual Report of Otter Tail Corporation on Form 10-K for its
fiscal year ended December 31, 2003, and any and all amendments to said Annual
Report, and to deliver on my behalf said Annual Report and any and all
amendments thereto, as each thereof is so signed, for filing with the
Securities and Exchange Commission pursuant to the Securities Exchange Act of
1934, as amended.

Date: March 8, 2004

| |                       
| | ----------------------
| | /s/ John C. MacFarlane
| |                       
| | John C. MacFarlane    

In Presence of:

/s/ Gary J. Spies

/s/ Kenneth L. Nelson





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##### 



POWER OF ATTORNEY



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I, KAREN M. BOHN, do hereby constitute and appoint JOHN D. ERICKSON and
GEORGE A. KOECK, or any one of them, my Attorney-in-Fact for the purpose of
signing, in my name and on my behalf as Director of Otter Tail Corporation, the
Annual Report of Otter Tail Corporation on Form 10-K for its fiscal year ended
December 31, 2003, and any and all amendments to said Annual Report, and to
deliver on my behalf said Annual Report and any and all amendments thereto, as
each thereof is so signed, for filing with the Securities and Exchange
Commission pursuant to the Securities Exchange Act of 1934, as amended.

Date: March 8, 2004

| |                  
| | -----------------
| | /s/ Karen M. Bohn
| |                  
| | Karen M. Bohn    

In Presence of:

/s/ Nathan I. Partain

/s/ Gary J. Spies





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##### 



POWER OF ATTORNEY



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I, THOMAS M. BROWN, do hereby constitute and appoint JOHN D. ERICKSON and
GEORGE A. KOECK, or any one of them, my Attorney-in-Fact for the purpose of
signing, in my name and on my behalf as Director of Otter Tail Corporation, the
Annual Report of Otter Tail Corporation on Form 10-K for its fiscal year ended
December 31, 2003, and any and all amendments to said Annual Report, and to
deliver on my behalf said Annual Report and any and all amendments thereto, as
each thereof is so signed, for filing with the Securities and Exchange
Commission pursuant to the Securities Exchange Act of 1934, as amended.

Date: March 8, 2004

| |                    
| | -------------------
| | /s/ Thomas M. Brown
| |                    
| | Thomas M. Brown    

In Presence of:

/s/ Karen M. Bohn

/s/ John D. Erickson





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##### 



POWER OF ATTORNEY



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I, DENNIS R. EMMEN, do hereby constitute and appoint JOHN D. ERICKSON and
GEORGE A. KOECK, or any one of them, my Attorney-in-Fact for the purpose of
signing, in my name and on my behalf as Director of Otter Tail Corporation, the
Annual Report of Otter Tail Corporation on Form 10-K for its fiscal year ended
December 31, 2003, and any and all amendments to said Annual Report, and to
deliver on my behalf said Annual Report and any and all amendments thereto, as
each thereof is so signed, for filing with the Securities and Exchange
Commission pursuant to the Securities Exchange Act of 1934, as amended.

Date: March 8, 2004

| |                    
| | -------------------
| | /s/ Dennis R. Emmen
| |                    
| | Dennis R. Emmen    

In Presence of:

/s/ Arvid R. Liebe

/s/ Robert N. Spolum





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##### 



POWER OF ATTORNEY



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I, ARVID R. LIEBE, do hereby constitute and appoint JOHN D. ERICKSON and
GEORGE A. KOECK, or any one of them, my Attorney-in-Fact for the purpose of
signing, in my name and on my behalf as Director of Otter Tail Corporation, the
Annual Report of Otter Tail Corporation on Form 10-K for its fiscal year ended
December 31, 2003, and any and all amendments to said Annual Report, and to
deliver on my behalf said Annual Report and any and all amendments thereto, as
each thereof is so signed, for filing with the Securities and Exchange
Commission pursuant to the Securities Exchange Act of 1934, as amended.

Date: March 8, 2004

| |                   
| | ------------------
| | /s/ Arvid R. Liebe
| |                   
| | Arvid R. Liebe    

In Presence of:

/s/ Dennis R. Emmen

/s/ Robert N. Spolum





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##### 



POWER OF ATTORNEY



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I, KENNETH L. NELSON, do hereby constitute and appoint JOHN D. ERICKSON
and GEORGE A. KOECK, or any one of them, my Attorney-in-Fact for the purpose of
signing, in my name and on my behalf as Director of Otter Tail Corporation, the
Annual Report of Otter Tail Corporation on Form 10-K for its fiscal year ended
December 31, 2003, and any and all amendments to said Annual Report, and to
deliver on my behalf said Annual Report and any and all amendments thereto, as
each thereof is so signed, for filing with the Securities and Exchange
Commission pursuant to the Securities Exchange Act of 1934, as amended.

Date: March 8, 2004

| |                      
| | ---------------------
| | /s/ Kenneth L. Nelson
| |                      
| | Kenneth L. Nelson    

In Presence of:

/s/ John C. MacFarlane

/s Gary J. Spies





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##### 



POWER OF ATTORNEY



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I, NATHAN I. PARTAIN, do hereby constitute and appoint JOHN D. ERICKSON
and GEORGE A. KOECK, or any one of them, my Attorney-in-Fact for the purpose of
signing, in my name and on my behalf as Director of Otter Tail Corporation, the
Annual Report of Otter Tail Corporation on Form 10-K for its fiscal year ended
December 31, 2003, and any and all amendments to said Annual Report, and to
deliver on my behalf said Annual Report and any and all amendments thereto, as
each thereof is so signed, for filing with the Securities and Exchange
Commission pursuant to the Securities Exchange Act of 1934, as amended.

Date: March 8, 2004

| |                      
| | ---------------------
| | /s/ Nathan I. Partain
| |                      
| | Nathan I. Partain    

In Presence of:

/s/ Kenneth L. Nelson

/s/ Gary J. Spies





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##### 



POWER OF ATTORNEY



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I, GARY J. SPIES, do hereby constitute and appoint JOHN D. ERICKSON and
GEORGE A. KOECK, or any one of them, my Attorney-in-Fact for the purpose of
signing, in my name and on my behalf as Director of Otter Tail Corporation, the
Annual Report of Otter Tail Corporation on Form 10-K for its fiscal year ended
December 31, 2003, and any and all amendments to said Annual Report, and to
deliver on my behalf said Annual Report and any and all amendments thereto, as
each thereof is so signed, for filing with the Securities and Exchange
Commission pursuant to the Securities Exchange Act of 1934, as amended.

Date: March 8, 2004

| |                  
| | -----------------
| | /s/ Gary J. Spies
| |                  
| | Gary J. Spies    

In Presence of:

/s/ John C. MacFarlane

/s/ Kenneth L. Nelson





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##### 



POWER OF ATTORNEY



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I, ROBERT N. SPOLUM, do hereby constitute and appoint JOHN D. ERICKSON and
GEORGE A. KOECK, or any one of them, my Attorney-in-Fact for the purpose of
signing, in my name and on my behalf as Director of Otter Tail Corporation, the
Annual Report of Otter Tail Corporation on Form 10-K for its fiscal year ended
December 31, 2003, and any and all amendments to said Annual Report, and to
deliver on my behalf said Annual Report and any and all amendments thereto, as
each thereof is so signed, for filing with the Securities and Exchange
Commission pursuant to the Securities Exchange Act of 1934, as amended.

Date: March 8, 2004

| |                     
| | --------------------
| | /s/ Robert N. Spolum
| |                     
| | Robert N. Spolum    

In Presence of:

/s/ Arvid R. Liebe

/s/ Dennis R. Emmen