Vogtle Unit 3 Is Operational Press Release

For immediate release Media Contact:
Kay Phillips
Dalton Utilities/OptiLink kphillips@dutil.com 706-529-1032
Vogtle Unit 3 goes into operation

New nuclear unit now serving customers with clean, reliable energy 24/7
Dalton, Georgia – August 2, 2023 – Dalton Utilities, along with Georgia Power, MEAG, and Oglethorpe
declared that Plant Vogtle Unit 3 entered commercial operation on July 31st and is now serving
customers across the State of Georgia. “Today is a day of celebration in recognition of a
tremendous milestone,” said John Thomas, CEO of Dalton Utilities. “Today, we celebrate America’s
first new nuclear unit to have been constructed in over three decades. Plant Vogtle Unit 3 has
reached commercial operation, now providing safe and reliable energy for the next 60 years or more.
Dalton Utilities’ investment in Plant Vogtle Units 3 and 4 is part of our commitment to deliver
clean and affordable energy to our customers well into the future.”

Vogtle Unit 3 can power an estimated 500,000 homes and businesses. Once all four units are online,
the Plant Vogtle site will be the largest generator of clean energy in the nation and support
continued growth in Georgia as more industries, businesses, and families come to the state.

The final stages of construction and testing continue at Vogtle Unit 4, with the unit projected to
be in service during the late fourth quarter of 2023 or the first quarter of 2024. The unit
completed hot functional testing in May in significantly less time than Unit 3. The Vogtle site has
also received nuclear fuel for Unit 4, with a total of 157 fuel assemblies necessary for the safe
and reliable startup of the unit.

The new Vogtle units are an essential part of a commitment to delivering clean, safe, reliable, and
affordable energy to millions of customers. Southern Nuclear will operate the new units on behalf
of the co-owners: Georgia Power, Oglethorpe Power, MEAG Power, and Dalton Utilities.

About Dalton Utilities
Dalton Utilities, in operation as a public utility since 1889, provides potable water, electrical,
natural gas and wastewater treatment services to the City of Dalton and portions of Whitfield,
Murray, Gordon, Catoosa, and Floyd counties. Beginning in 1999, Dalton Utilities branched into
telecommunications with broadband services to large industrial/commercial customers. With the 2003
launch of its OptiLink family of services, the company now provides broadband, cable TV, telephone,
and internet services to area residents and businesses. Dalton Utilities serves approximately
78,000 customers and employs over 300 area residents. For more information, visit www.dutil.com.