Generations 2012 Annual Report
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Glossary

BASIC EARNINGS PER SHARE EXCLUDING MC ASSET RECOVERY INSURANCE SETTLEMENT, LITIGATION SETTLEMENT WITH MC ASSET RECOVERY, AND LEVERAGED LEASE CHARGES
Basic earnings per share of $2.70 minus excluded MC Asset Recovery insurance settlement of 2 cents in 2012; basic earnings per share of $2.07 plus an excluded 25-cent charge related to a litigation settlement with MC Asset Recovery in 2009; and basic earnings per share of $2.26 plus 11 cents of excluded leveraged lease charges in 2008.

BIOMASS
Plant matter such as dead trees and branches, yard clippings and wood chips used to generate electricity.

BOOK VALUE
A company’s common stock equity as it appears on a balance sheet, equal to total assets minus liabilities, preferred and preference stock, and intangible assets such as goodwill. Book value per share refers to the book value of a company divided by the number of shares outstanding.

CAPITAL
Money invested in a firm, typically in permanent facilities or equipment rather than non-durable items.

COAL GASIFICATION
A process in which the energy stored in coal is converted to a gas, making it available for use in refineries for the synthesis of chemicals or in gas-fired power plants as a fuel.

DILUTED EARNINGS PER SHARE
A company’s earnings per share calculated using fully diluted shares outstanding, including the impact of stock option grants and convertible bonds that can be converted into shares of stock in the issuing company.

DIVIDEND YIELD
The annual dividend income per share received from a company divided by its current stock price.

EARNINGS PER SHARE
Net income divided by the average number of shares of common stock outstanding.

END-USE ELECTROTECHNOLOGIES
Electric-based technologiessuch as heat pumps and light bulbsused at the point of end use by the retail customer.

ENERGY AUDIT
An onsite inspection in which recommendations are made for improving the energy efficiency of a home or business.

EQUIVALENT FORCED OUTAGE RATE
The percentage of scheduled operating time that a unit is out of service due to unexpected problems or failures.

FLY ASH
A very fine material produced when coal is combusted in a boiler to produce electricity. Can be useful in cement and concrete applications due to its physical and chemical properties.

GENERATING CAPACITY
The amount of energy that can be produced using all of our power generation facilities.

GENERATION (OR FUEL) MIX
The proportion of energy produced from various fuel sources (natural gas, coal, nuclear, hydro, biomass, etc.).

KILOWATT-HOUR
A unit of electricity, equal to 1,000 watt-hours, delivered by an electric utility steadily for one hour.

MEGAWATT
A measurement of electricity equal to 1,000 kilowatts and typically used when describing large amounts of generating capacity.

MERCURY
A naturally occurring element in the Earth’s crust that is present in trace amounts in coal. When power plants burn coal, trace amounts of mercury are released.

PARTICULATE MATTER
A mix of substances that exist as discrete solid particles or liquid droplets suspended in air. Two size classes of particles, which can be emitted directly into the atmosphere or form from reactive gases, are federally regulated.

PEAK SEASON
The time of year when demand for electricity is typically at its highest level. Includes two winter months (January-February) and five summer months (May-September).

RELIABILITY
As pertains to electric networks, the extent to which supply is available to meet demand.

RENEWABLE ENERGY
Energy generated directly from natural resources such as sunlight, wind, water, biomass, ocean tides and geothermal heat from the ground.

RETURN ON EQUITY
A measure of profitability, calculated as net income divided by average shareholders’ equity.

SCRUBBER
A technology installed on a coal-fired power plant to remove sulfur dioxide emissions.

SMART METERS
Modern meter technology that provides faster access to more complete usage information, as well as other functionalities, for utilities and their customers.

SYNTHETIC FUEL
Gaseous liquids or solid fuels that do not occur naturally and can be made from natural substances such as coal or oil.

TOTAL SHAREHOLDER RETURN
Stock price appreciation plus reinvested dividends. (The distribution of shares of Mirant Corporation stock to Southern Company shareholders is treated as a special dividend for purposes of calculating Southern Company shareholder return.)

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