Attached files
| file | filename |
|---|---|
| 10-K - FORM 10-K - Otter Tail Corp | c56502e10vk.htm |
| EX-32.2 - EX-32.2 - Otter Tail Corp | c56502exv32w2.htm |
| EX-21.A - EX-21.A - Otter Tail Corp | c56502exv21wa.htm |
| EX-31.2 - EX-31.2 - Otter Tail Corp | c56502exv31w2.htm |
| EX-31.1 - EX-31.1 - Otter Tail Corp | c56502exv31w1.htm |
| EX-32.1 - EX-32.1 - Otter Tail Corp | c56502exv32w1.htm |
| EX-12.1 - EX-12.1 - Otter Tail Corp | c56502exv12w1.htm |
| EX-24.A - EX-24.A - Otter Tail Corp | c56502exv24wa.htm |
Exhibit 23-A
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in Registration Statement Nos. 333-155747-99 and
333-159137-99 on Form S-3 and 333-25261-99, 333-73041-99, 333-73075-99 and 333-136841-99 on Form
S-8 of our report dated February 26, 2010 relating to the consolidated financial statements of
Otter Tail Corporation and its subsidiaries (the “Company”) and the effectiveness of the Company’s
internal control over financial reporting, which appears in this Annual Report on Form 10-K of the
Company for the year ended December 31, 2009.
| /s/ Deloitte & Touche LLP | ||||
| Minneapolis, Minnesota | ||||
| February 26, 2010 | ||||