
Mississippi Power, preciously known as Mississippi Power Company (MPC), is an electric utility company. Its headquarters are in
Gulfport, Mississippi
Gulfport ( ) is a city in Harrison County, Mississippi, United States, and its co-county seat. It had a population of 72,926 at the 2020 United States census, 2020 census, making it the List of municipalities in Mississippi, second-most populous ...
, and it is a subsidiary of
Atlanta
Atlanta ( ) is the List of capitals in the United States, capital and List of municipalities in Georgia (U.S. state), most populous city in the U.S. state of Georgia (U.S. state), Georgia. It is the county seat, seat of Fulton County, Georg ...
-based,
Southern Company
Southern Company is an American gas and electric utility holding company based in the Southern United States. It is headquartered in Atlanta, Georgia, with executive offices located in Birmingham, Alabama. As of 2021 it is the second largest ut ...
.
Mississippi Power has more than 1,000 employees and serves most of the cities, towns, and communities within the 23 counties of southeast Mississippi. The utility also serves six
Rural Electrification Administration
The United States Rural Utilities Service (RUS) administers programs that provide infrastructure or infrastructure improvements to rural communities. These include water and waste treatment, electric power, and telecommunications services. It i ...
-financed
electric cooperatives: Coast EPA (Electric Power Association), Singing River EPA, Southern Pine EPA, Dixie EPA, Pearl River EPA, and East Mississippi EPA - and one municipality,
City of Collins, with wholesale electric power which, in turn, they resell to customers in southeast Mississippi. Based on public data from the U.S. Energy Information Administration, Mississippi Power's 2018 price of electricity to retail customers averaged 8.99 cents, compared to a national average of 10.58 cents.
History

Mississippi Power Company was founded in 1925. In 1949,
Southern Company
Southern Company is an American gas and electric utility holding company based in the Southern United States. It is headquartered in Atlanta, Georgia, with executive offices located in Birmingham, Alabama. As of 2021 it is the second largest ut ...
was established as a holding company for four utilities, one of which included Mississippi Power Company.
Formerly known as Mississippi Power Company from 1925 to 1976, the company shortened to Mississippi Power, and has maintained that name ever since.
Hurricane Katrina
August 29, 2005,
Hurricane Katrina
Hurricane Katrina was a powerful, devastating and historic tropical cyclone that caused 1,392 fatalities and damages estimated at $125 billion in late August 2005, particularly in the city of New Orleans and its surrounding area. ...
struck, taking down the company's electric systems and leaving every single customer without service. With a team of 12,000 - employees and crews from every state and Canada - they were able to restore service to all who could receive it in only 12 days.
The severity of the storm has cautioned Mississippi Power with every future investment it has made. Most noticeably is the location of the
Kemper Project, which was purposefully selected to be comfortably located miles from the Gulf. It is no wonder that the Kemper Project, officially named Plant Ratcliffe, was named after the 2005 Southern Company CEO, David Ratcliffe.
in 2007, Mississippi Power teamed with the Mississippi Department of Wildlife and Fisheries to begin restocking the Pascagoula River after Hurricane Katrina's massive fish kill by releasing more than 2,500 largemouth bass advanced fingerlings.
Generating plants
Steam plants
Combustion turbines
Fuels used to generate electricity
Transmission and distribution facilities
Mississippi Power maintains 147 substations, 2,118 miles of transmission lines, 4,213 miles of primary overhead lines and 560 miles of primary underground lines. Total generating capacity is 3,098,692 kW.
Former plants
The Eaton Electric Generating Plant was a three-unit
Natural gas
Natural gas (also fossil gas, methane gas, and gas) is a naturally occurring compound of gaseous hydrocarbons, primarily methane (95%), small amounts of higher alkanes, and traces of carbon dioxide and nitrogen, hydrogen sulfide and helium ...
-fired
power plant
A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the electricity generation, generation of electric power. Power stations are generally connected to an electr ...
located in
Petal, Mississippi
Petal is a city in Forrest County, Mississippi, Forrest County, Mississippi, along the Leaf River (Mississippi), Leaf River. It is part of the Hattiesburg metropolitan area, Hattiesburg, Mississippi Metropolitan Statistical Area. The population w ...
. Each of the three units generated 22.5
Megawatts
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named in honor o ...
(MW) of
electricity
Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwel ...
, with a total plant capacity of 67.5 MW. The plant drew
cooling water
Cooling tower and water discharge of a nuclear power plant
Water cooling is a method of heat removal from components and industrial equipment. Evaporative cooling using water is often more efficient than air cooling. Water is inexpensive and no ...
from the
Leaf River.
[Becky Gillette]
Industry feels little impact from months-long drought
''Mississippi Business Journal'', October 18, 1999
Named for Barney Eaton, Mississippi Power's first president, the plant was the first high-pressure steam plant in the state of Mississippi and the first plant built by Mississippi Power Company. Plant Eaton made headlines when it was built in 1945 as it was the largest and most modern plant of its day. The first unit came on line March 22, 1945.
Originally, Plant Eaton was intended to generate electricity to aid the United States in production of materials for
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
; however, the plant's largest contribution turned out to be producing power for the boom in electricity demanded following the war. As of the late 1990s, its use was limited to meeting peak demands during the summer.
[
Plant Eaton was closed down in 2012 due to declining efficiency. The plant was demolished in 2014.
]
Kemper Project
Mississippi Power is currently constructing the Kemper County energy facility, commonly shortened to the Kemper Project, in Kemper County, Mississippi. Construction began in June 2010. The Kemper Project was intended to use an integrated gasification combined cycle (IGCC) to convert lignite
Lignite (derived from Latin ''lignum'' meaning 'wood'), often referred to as brown coal, is a soft, brown, combustible sedimentary rock formed from naturally compressed peat. It has a carbon content around 25–35% and is considered the lowest ...
coal to gas. Lignite
Lignite (derived from Latin ''lignum'' meaning 'wood'), often referred to as brown coal, is a soft, brown, combustible sedimentary rock formed from naturally compressed peat. It has a carbon content around 25–35% and is considered the lowest ...
, an abundant natural resource in Mississippi and commonly referred to as "brown coal", is very low grade coal. To meet increasing energy demands, Mississippi Power and the Department of Energy
A ministry of energy or department of energy is a government department in some countries that typically oversees the production of fuel and electricity; in the United States, however, it manages nuclear weapons development and conducts energy-rela ...
invested in technology to turn lignite
Lignite (derived from Latin ''lignum'' meaning 'wood'), often referred to as brown coal, is a soft, brown, combustible sedimentary rock formed from naturally compressed peat. It has a carbon content around 25–35% and is considered the lowest ...
coal into a viable energy source. The Kemper Project hoped to capture 65% of the carbon dioxide emissions, a byproduct of the chemical gasification process. This technology is called Carbon Capture & Sequestration (CCS).
The Kemper Coal Plant was built by Mississippi Power in order to diverse its energy portfolio. With the majority of its investments in natural gas
Natural gas (also fossil gas, methane gas, and gas) is a naturally occurring compound of gaseous hydrocarbons, primarily methane (95%), small amounts of higher alkanes, and traces of carbon dioxide and nitrogen, hydrogen sulfide and helium ...
(a fuel with high price fluctuation, they determined lignite
Lignite (derived from Latin ''lignum'' meaning 'wood'), often referred to as brown coal, is a soft, brown, combustible sedimentary rock formed from naturally compressed peat. It has a carbon content around 25–35% and is considered the lowest ...
would be a better long-term fuel source than natural gas
Natural gas (also fossil gas, methane gas, and gas) is a naturally occurring compound of gaseous hydrocarbons, primarily methane (95%), small amounts of higher alkanes, and traces of carbon dioxide and nitrogen, hydrogen sulfide and helium ...
.
The plant missed all its targets and plans for "clean coal" generation were abandoned in July 2017. The plant is expected to go ahead burning natural gas only.
Mississippi Power Supreme Court Ruling
In February 2015, the Supreme Court of Mississippi
The Supreme Court of Mississippi is the Supreme court, highest court in the state of Mississippi. It was established in 1818 per the terms of the first constitution of the state and was known as the High Court of Errors and Appeals from 1832 to 1 ...
found the agreement to raise rates during construction of the plant between the Mississippi Public Service Commission
The Mississippi Public Service Commission (MPSC or PSC) is a government agency which regulates telecommunications, electric, gas, water and sewer utilities in the U.S. state of Mississippi. The commission was created in 1884 and in its early ...
(MPSC) and Mississippi Power to be unlawful. The Court cited the MPSC's failure to give proper notice to the public about the rate increase as one of the main reasons for the 5–4 ruling. Mississippi Power disagrees with the ruling, and officially announced it plans to file for a rehearing. The original basis for the agreement between MPSC and Mississippi Power in March 2013 was a result of powers granted in the state'
2008 Baseload Act
This act allows public utilities to collect Construction Work in Progress (CWIP) funds to encourage long term investments by public utility companies.[
]
Additional names for Kemper Project
*Plant Ratcliffe
*Kemper Coal Project
*Kemper County energy facility
*Kemper IGCC Plant
*Kemper CCS
*Kemper Plant
*Kemper Power Plant
Notes
External links
* {{Official website, http://www.mississippipower.com/
Electric power companies of the United States
Southern Company
Energy infrastructure in Mississippi
Companies based in Mississippi
American companies established in 1925
Energy companies established in 1925
Non-renewable resource companies established in 1925
1920s establishments in Mississippi