Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements of Oglethorpe Power Corporation:

(1)Registration Statement (Form S-3 No. 333-167135)

(2)Registration Statement (Form S-3 No. 333-171342)

of our report dated March 22, 2013, with respect to the consolidated financial statements of Oglethorpe Power Corporation included in this Annual Report (Form 10-K) of Oglethorpe Power Corporation for the year ended December 31, 2012.

	/s/ Ernst & Young LLP
Atlanta, Georgia
March 22, 2013