| AGIA |
Alaska Gasline Inducement Act |
| Alaska Pipeline Project |
A proposed natural gas pipeline extending from Prudhoe Bay, Alaska to either Alberta or Valdez, Alaska |
| Alberta System |
A natural gas transmission system in Alberta |
| American Natural Resources (ANR) |
A natural gas transmission system extending from producing fields located primarily in Texas, Oklahoma, the Gulf of Mexico and Louisiana to markets located primarily in Wisconsin, Michigan, Illinois, Ohio and Indiana, and regulated underground natural gas storage facilities in Michigan |
| ANR Pipeline |
ANR Pipeline Company |
| APG |
Aboriginal Pipeline Group |
| ATWACC |
After-tax weighted average cost of capital |
| AUC |
Alberta Utilities Commission |
| B.C. |
British Columbia |
| Bbl/d |
Barrel(s) per day |
| Bcf |
Billion cubic feet |
| Bcf/d |
Billion cubic feet per day |
| Bear Creek |
A natural gas-fired cogeneration plant near Grande Prairie, Alberta |
| Bécancour |
A natural gas-fired cogeneration plant near Trois-Rivières, Québec |
| Bison |
A pipeline under construction extending from the Powder River Basin in Wyoming to Northern Border in North Dakota |
| BPC |
BPC Generation Infrastructure Trust |
| Broadwater |
A proposed offshore LNG project in Long Island Sound, New York |
| Bruce A |
A partnership interest in the nuclear power generation facilities of Bruce Power A L.P. |
| Bruce B |
A partnership interest in the nuclear power generation facilities of Bruce Power L.P. |
| Bruce Power |
Bruce A and Bruce B, collectively |
| Calpine |
Calpine Corporation |
| Canadian Mainline |
A natural gas transmission system extending from the Alberta/Saskatchewan border east into Québec |
| Cancarb |
A waste-heat fuelled power plant at the Cancarb thermal carbon black facility in Medicine Hat, Alberta |
| Carseland |
A natural gas-fired cogeneration plant located near Carseland, Alberta |
| Cartier Wind |
Five wind farms in Gaspé, Québec, three of which are operational and two are under construction |
| Chinook |
A proposed power transmission line project that will originate in Montana and terminate in Nevada |
| CICA |
Canadian Institute of Chartered Accountants |
| CNSC |
Canadian Nuclear Safety Commission |
| CO2 |
Carbon dioxide |
| Coolidge |
A simple-cycle, natural gas-fired peaking power generation station under construction in Coolidge, Arizona |
| CrossAlta |
An underground natural gas storage facility near Crossfield, Alberta |
| DB Plans |
Defined benefit plans |
| DRP |
Dividend Reinvestment and Share Purchase Plan |
| EBIT |
Earnings before interest and taxes |
| EBITDA |
Earnings before interest, taxes, depreciation and amortization |
| Edson |
A natural gas storage facility near Edson, Alberta |
| EIC |
Emerging Issues Committee |
| FASB |
Financial Accounting Standards Board |
| FCM |
Forward Capacity Market |
| FERC |
Federal Energy Regulatory Commission (U.S.) |
| Foothills |
A natural gas transmission system extending from central Alberta to the B.C./U.S. border and to the Saskatchewan/U.S. border |
| GAAP |
Generally accepted accounting principles |
| Gas Pacifico |
A natural gas transmission system extending from Loma de la Lata, Argentina to Concepción, Chile |
| GHG |
Greenhouse gas |
| Grandview |
A natural gas-fired cogeneration plant near Saint John, New Brunswick |
| Great Lakes |
A natural gas transmission system that connects to the Canadian Mainline and serves markets in Eastern Canada and the northeastern and midwestern U.S. |
| Gas Transmission Northwest (GTN) |
A natural gas transmission system extending from the B.C./Idaho border to the Oregon/California border, traversing Idaho, Washington and Oregon |
| GTNC |
Gas Transmission Northwest Company |
| Guadalajara |
A natural gas pipeline under construction in Mexico extending from Manzanillo, Colima to Guadalajara, Jalisco |
| GWh |
Gigawatt hours |
| Halton Hills |
A natural gas-fired, combined-cycle power plant under construction near Toronto, Ontario |
| HS&E |
Health, Safety and Environment |
| IASB |
International Accounting Standards Board |
| IESO |
Independent Electricity System Operator |
| IFRS |
International Financial Reporting Standards |
| INNERGY |
An industrial natural gas marketing company based in Concepción, Chile |
| Iroquois |
A natural gas transmission system that connects with the Canadian Mainline near Waddington, New York, and delivers natural gas to the northeastern U.S. |
| Irving |
Irving Oil Limited |
| ISO |
International Organization for Standardization |
| Keystone |
A pipeline under construction that will transport crude oil from Hardisty, Alberta, to U.S. markets at Wood River and Patoka in Illinois, and to Cushing, Oklahoma |
| Kibby Wind |
A wind power project located in Kibby and Skinner Townships in northwestern Franklin County, Maine |
| km |
Kilometre(s) |
| LIBOR |
London Interbank Offered Rate |
| LNG |
Liquefied natural gas |
| MacKay River |
A natural gas-fired cogeneration plant located near Fort McMurray, Alberta |
| MD&A |
Management's Discussion and Analysis |
| Mackenzie Gas Pipeline (MGP) Project |
A proposed natural gas pipeline extending from a point near Inuvik, Northwest Territories to the northern border of Alberta |
| mmcf/d |
Million cubic feet per day |
| Moody's |
Moody's Investors Service |
| MOP |
Maximum operating pressure |
| MW |
Megawatt(s) |
| MWh |
Megawatt hours |
| NEB |
National Energy Board of Canada |
| NGTL |
NOVA Gas Transmission Ltd. |
| North Baja |
A natural gas transmission system extending from Arizona to the Baja California, Mexico/California border |
| Northern Border |
A natural gas transmission system extending from a point near Monchy, Saskatchewan to the U.S. Midwest |
| NYISO |
New York Independent System Operator |
| Oakville |
A proposed natural gas-fired, combined-cycle power plant in Oakville, Ontario |
| OM&A |
Operating, maintenance and administration |
| OMERS |
Ontario Municipal Employees Retirement System |
| OPA |
Ontario Power Authority |
| Ocean State Power (OSP) |
A natural gas-fired, combined-cycle plant in Burrillville, Rhode Island |
| Palomar |
A proposed pipeline extending from GTN to the Columbia River northwest of Portland |
| PipeLines LP |
TC PipeLines, LP |
| Portland |
A natural gas transmission system extending from a point near East Hereford, Québec to the northeastern U.S. |
| Portlands Energy |
A natural gas-fired, combined-cycle power plant in Toronto, Ontario |
| PPA |
Power purchase arrangement |
| PWU |
Power Workers' Union Trust |
| Ravenswood |
A natural gas- and oil-fired generating facility consisting of multiple units employing steam turbine, combined-cycle and combustion turbine technology located in Queens, New York |
| Redwater |
A natural gas-fired cogeneration plant located near Redwater, Alberta |
| RGGI |
Regional Greenhouse Gas Initiative |
| ROE |
Rate of return on common equity |
| S&P |
Standard and Poor's |
| SEC |
Securities and Exchange Commission (U.S.) |
| SEP |
Society of Energy Professionals Trust |
| Sheerness |
A coal-fired power generating facility located near Hanna, Alberta |
| Sundance A |
A coal-fired power generating facility located near Wabamun, Alberta |
| Sundance B |
A coal-fired power generating facility located near Wabamun, Alberta |
| Tamazunchale |
A natural gas transmission system in Mexico extending from Naranjos, Veracruz to Tamazunchale, San Luis Potosi |
| TC Hydro |
Hydroelectric generation assets located in New Hampshire, Vermont and Massachusetts |
| TCPL |
TransCanada PipeLines Limited |
| TCPL USA |
TransCanada PipeLine USA Ltd. |
| TCPM |
TransCanada Power Marketing Ltd. |
| Trans Québec & Maritimes (TQM) |
A natural gas transmission system that connects with the Canadian Mainline and transports natural gas in Québec, from Montreal to the Portland system and to Québec City |
| TQM Pipeline |
Trans Québec & Maritimes Pipeline Inc. |
| TransCanada or the Company |
TransCanada Corporation |
| TransGas |
A natural gas transmission system extending from Mariquita in the central region of Colombia to Cali in the southwest region of Colombia |
| Tuscarora |
A natural gas transmission system extending from Malin, Oregon to Wadsworth, Nevada |
| U.S. |
United States |
| VaR |
Value-at-Risk |
| Ventures LP |
Natural gas transmission systems in Alberta that supply natural gas to the oilsands region of northern Alberta and to a petrochemical complex at Joffre, Alberta |
| WCI |
Western Climate Initiative |
| WCSB |
Western Canada Sedimentary Basin |
| Zephyr |
A proposed power transmission line project originating in Wyoming and terminating in Nevada |
