March 29, 2017

Oglethorpe Power Fourth Quarter And Year-End Investor Briefing to Be Held April 13

TUCKER, GA (3/29/2017) – ​Oglethorpe Power Corporation executive management will discuss fourth quarter and year end results, as well as an update on the Company’s Vogtle 3&4 nuclear construction project during a conference call at 11:00 a.m. Eastern on Thursday, April 13, 2017. Investors, media and the public may view a live internet webcast or join via telephone.

How to Participate:

Joining Via Telephone:
Domestic Toll-Free Dial-in Number: (877) 930-8094
International Dial-in Number: (253) 336-8058
Conference ID: 99272786

The presentation may be downloaded at the website listed below when the conference begins.

Joining Via the Internet:
Please navigate to the following web address to view the webcast:

Instruction on how to submit questions will be provided during the call. If you have additional questions, please contact Thomas J. Brendiar, Director of Bank and Investor Relations at
770-270-7173 or via e-mail at tom.brendiar@opc.com.

Shortly following the live presentation, a replay of the webcast will be accessible at the web address indicated above. This link will also be posted on the Investor Relations page of the company’s website, www.opc.com.

About Oglethorpe Power
Oglethorpe Power is one of the nation’s largest power supply cooperatives with more than $10 billion in assets serving 38 Electric Membership Corporations which, collectively, provide electricity to approximately 4.1 million Georgia residents. A proponent of conscientious energy development and use, Oglethorpe Power balances reliable and affordable energy with environmental responsibility and has an outstanding record of regulatory compliance. Its diverse energy portfolio includes natural gas, hydroelectric, coal and nuclear generating plants with a combined capacity of approximately 7,800 megawatts. Oglethorpe Power was established in 1974 and is owned by its 38 Member Systems. Its headquarters are in Tucker, Georgia, an Atlanta suburb.