Generation Capacity in Watts

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Generation capacity refers to

Generation capacity of often measured in Megawatts, or MWs, which refers to Millions of Watts. A Watt is a unit of power, referring to one joule per second (J/s) - the amount of energy generated in a second. A 100 MW power plant generates 100 million joules of electricity per second.^[1]

Generation capacity is also measured in Kilowatt-hours (kWh) which refers to the amount of energy used. A kWh is exactly 3.6 Megajoules - 3.6 million joules.^[2] One watt-second is one joule. When an electric utility refers to electricity usage of X kWh per year, it means that the company's customers used X times 3.6 million joules of energy TOTAL for the year.

Generation Capacity in Watts

Company	2004	2005	2006	2007	2008
ADDvantage Technologies Group (AEY)	10.9B	10.4B	9.67B	9.71B	Add
Allete (ALE)	1.71B	1.69B	1.41B	1.46B	Add
Alliant Energy (LNT)	5.74B	5.45B	4.99B	4.93B	Add
Ameren (AEE)	15.2B	16.2B	16.4B	Add	Add
American Electric Power Company (AEP)	34.5B	35.2B	35B	37B	Add
AQUILA (ILA)	2.08B	2.38B	2.41B	Add	Add
Avista (AVA)	1.66B	1.8B	1.81B	1.77B	Add
Black Hills (BKH)	1.49B	1.49B	1.47B	Add	Add
CenterPoint Energy, Inc (Holding Co) (CNP)	Add	Add	Add	Add	Add
Central Vermont Pub Svc (CV)	Add	Add	Add	Add	Add
CH Energy Group (CHG)	Add	Add	Add	Add	Add
Cleco Power (CNL)	1.36B	1.36B	1.36B	Add	Add
CMS Energy (CMS)	8.92B	8.95B	9.21B	9.3B	Add
Commerce Energy Group (EGR)	Add	Add	Add	Add	Add
Companhia Paranaense de Energia (COPEL) (ELP)	4.55B	4.55B	4.55B	Add	Add
Consolidated Edison (ED)	2.23B	2.36B	1.67B	2.44B	Add
Constellation Energy Group (CEG)	16.2B	15.5B	12.3B	Add	Add
Dominion Resources (D)	28.1B	28.1B	27.9B	Add	Add
DPL (DPL)	4.38B	4.41B	4.41B	3.77B	Add
DTE Energy Company (DTE)	11.1B	11.1B	11.1B	Add	Add
Duke Energy Corporation (DUK)	18B	18.4B	27.6B	Add	Add
Dynegy (DYN)	1.27B	11.7B	10.7B	19.2B	Add
Edison International (EIX)	10.2B	10.5B	9.26B	Add	Add
El Paso Electric Company (EE)	1.5B	1.5B	1.49B	Add	Add
Empire District Electric Company (EDE)	1.1B	1.1B	1.1B	Add	Add
Energy East (EAS)	612M	555M	555M	Add	Add
Entergy (ETR)	21.5B	22.2B	22.1B	Add	Add
Exelon (EXC)	34.7B	33.5B	33.5B	32.3B	Add
FirstEnergy (FE)	13.4B	13.4B	14B	14.1B	Add
Florida Public Utilities Company (FPU)	Add	Add	Add	Add	Add
FPL Group (FPL)	18.9B	20.8B	21B	22.1B	Add
Great Plains Energy (GXP)	4.06B	4.05B	4B	4B	Add
Hawaiian Electric Industries (HE)	2.17B	2.18B	2.2B	Add	Add
IDACORP (IDA)	3.08B	3.08B	3.08B	3.27B	Add
Integrys Energy Group (TEG)	2.2B	1.86B	1.84B	1.82B	Add
Maine & Maritimes (MAM)	Add	Add	Add	Add	Add
MGE Energy (MGEE)	645M	780M	780M	780M	Add
Mirant (MIR)	17.9B	17.5B	17.5B	10.3B	Add
NiSource, Inc (NI)	4.73B	4.19B	4.2B	2.91B	Add
Northeast Utilities (NU)	2.61B	2.61B	1.17B	1.17B	Add

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