Testing milestones reached at Kemper

                     Testing milestones reached at Kemper

PR Newswire

GULFPORT, Miss., July 17, 2014

GULFPORT, Miss., July 17, 2014 /PRNewswire/ --Workers at Mississippi Power's
Kemper County energy facility successfully reached two major testing
milestones: testing of the combined cycle unit and pressure testing of both
gasifiers. The successful completion of the tests is an indication of
continued progress on putting both pieces of equipment into service.

Mississippi Power logo

Recent testing of the combined cycle included successfully running the unit
using natural gas to validate its ability to make electricity. When the plant
is fully operational, the Kemper combined cycle will use synthesis gas -
converted from lignite - to make electricity. A combined cycle unit is among
the most efficient forms of generating electricity for large-scale power

"This is a major accomplishment toward our goal of placing the combined cycle
into service before the end of summer," said Vice President of Generation
Development John Huggins. "Employees on site have worked many hours to ensure
safe and successful tests, and we're proud of the hard work they've done to
get us to this point."

Another major test took place this summer associated with the plant's two

Before the first gasifier heat-up can take place later this summer, pneumatic
pressure testing had to be done. The tests ensure the safety of all of the
gasifiers' assembled parts, check for any leaks and ensure the gasifiers can
handle the air and gas pressure of start-up. The gasifiers at Kemper are the
core of the integrated gasification process, which will be used to convert
lignite into synthesis gas. Both gasifiers were tested successfully in May and
late June.

"We are committed to safely testing every piece of equipment on site and will
continue to do so throughout the plant's start-up phase," continued Huggins.
"It puts us one step closer to bringing this innovative, 21^st century coal
project online for our customers."

The Kemper County energy facility will use innovative clean coal technology to
deliver safe, reliable and made-in-Mississippi electricity to Mississippi
Power customers. The 582-megawatt generating facility is scheduled to begin
operation in 2015.

Mississippi Power, a subsidiary of Southern Company (NYSE: SO), produces safe,
reliable and environmentally responsible energy for more than 186,000
customers in 23 southeast Mississippi counties. Recognized throughout the
utility industry for excellence in storm restoration and recovery efforts,
Mississippi Power is the 2013 winner of the Edison Electric Institute's
Emergency Assistance Award. As a leader in safety, Mississippi Power ranked
first in the 2013 Southeastern Electric Exchange (SEE) Safety Performance
Reports. Visit our websites at mississippipower.com and
mississippipowernews.com, like us on Facebook, follow us on Twitter, LinkedIn,
Google+ and YouTube.

Cautionary Note Regarding Forward-Looking Statements:

Certain information contained in this release is forward-looking information
based on current expectations and plans that involve risks and uncertainties.
Forward-looking information includes, among other things, statements
concerning the projected schedule for the completion of construction and
start-up of the integrated coal gasification combined cycle project in Kemper
County, Mississippi (the "Kemper IGCC") and expected benefits of the Kemper
IGCC. Mississippi Power Company cautions that there are certain factors that
could cause actual results to differ materially from the forward-looking
information that has been provided. The reader is cautioned not to put undue
reliance on this forward-looking information, which is not a guarantee of
future performance and is subject to a number of uncertainties and other
factors, many of which are outside the control of Mississippi Power Company;
accordingly, there can be no assurance that such suggested results will be
realized. The following factors, in addition to those discussed in Mississippi
Power Company's Annual Report on Form 10-K for the fiscal year ended December
31, 2013, and subsequent securities filings, could cause actual results to
differ materially from management expectations as suggested by such
forward-looking information: ability to control costs and avoid cost overruns
during the development and construction of facilities, which include the
development and construction of generating facilities with designs that have
not been finalized or previously constructed, including changes in labor costs
and productivity factors, adverse weather conditions, shortages and
inconsistent quality of equipment, materials, and labor, contractor or
supplier delay or non-performance under construction or other agreements,
operational performance, delays associated with start-up activities, including
major equipment failure, system integration, and operations, and/or unforeseen
engineering problems; ability to construct facilities in accordance with the
requirements of permits and licenses, to satisfy any operational and
environmental performance standards, including any Mississippi Public Service
Commission ("PSC") requirements and the requirements of tax credits and other
incentives, and to integrate facilities into the Southern Company system upon
completion of construction; advances in technology; the outcome of any legal
or regulatory proceedings regarding the Mississippi PSC's issuance of the
Certificate of Public Convenience and Necessity for the Kemper IGCC, the
settlement agreement between Mississippi Power Company and the Mississippi
PSC, the March 2013 rate order approving retail rate increases consistent with
the terms of the settlement agreement, or the State of Mississippi legislation
designed to enhance the Mississippi PSC's authority to facilitate development
and construction of baseload generation in the State of Mississippi; and the
ability of counterparties of Mississippi Power Company to make payments as and
when due and to perform as required. Mississippi Power Company expressly
disclaims any obligation to update any forward-looking information.

Logo- http://photos.prnewswire.com/prnh/20140717/128425

SOURCE Mississippi Power

Website: http://www.mississippipower.com
Contact: Corporate Communication, 228.865.5543 or 228.861.5543 (24/7 media
Press spacebar to pause and continue. Press esc to stop.