Beta
A measure of the volatility of a stock in comparison to the market as a whole. Beta can be described as the tendency of a security’s returns to respond to swings in the market.
Book Value
A company’s common stock equity as it appears on a balance sheet, equal to total assets minus liabilities and preferred and preference stock. Book value per share refers to the book value of a company divided by the number of shares outstanding.
Diluted Earnings Per Share
A company’s earnings per share calculated by 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.
FEMA
Acronym for Federal Emergency Management Agency; the agency of the United States government focused on disaster mitigation and recovery.
Kilowatt-Hour
A unit of electricity equal to 1,000 watt-hours, delivered by an electric utility steadily for one hour.
LEED
Acronym for Leadership in Energy and Environmental Design; the rating system of the United States Green Building Council for buildings, community and home projects. LEED certification is a globally-recognized symbol of sustainability achievement.
Megawatt (MW)
A measurement of electricity equal to 1,000 kilowatts and typically used when describing large amounts of generating capacity.
Microgrid
A group of interconnected loads and distributed energy resources within clearly defined electrical boundaries that act as a single controllable entity with respect to the electric grid. A microgrid can connect and disconnect from the grid to enable it to operate in both grid-connected or island-mode.
Renewable Energy
Energy generated directly from natural resources such as sunlight, wind, water, biomass, ocean tides and geothermal heat.
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 the purposes of calculating Southern Company shareholder return.)