Owner    Ownership Type Generation (MWhs) Emissions in Tons Emission Rates (lbs/MWh) All Sources Fossil Fuel Plants Coal Plants     Total Fossil Fuel Coal SO2 NOx CO2 Hg SO2 NOx CO2 SO2 NOx CO2 SO2 NOx CO2 Hg   Duke   investor-owned corp. 1 1 2 3 2 2 11 36 43 52 34 45 50 28 47 65 57   Exelon   investor-owned corp. 2 20 42 36 28 25 45 64 77 87 56 57 68 35 12 74 44   Southern   investor-owned corp. 3 3 4 2 6 3 3 29 49 50 26 54 61 10 41 43 14   NextEra Energy   investor-owned corp. 4 5 57 47 22 12 60 68 71 80 68 73 74 44 42 21 55   AEP   investor-owned corp. 5 2 1 1 1 1 2 14 29 27 12 34 31 17 51 61 29   Tennessee Valley Authority   federal power authority 6 7 5 6 8 5 10 33 51 56 22 40 33 25 52 49 47   Entergy   investor-owned corp. 7 13 22 19 10 15 17 53 52 81 43 32 62 6 24 20 8   Calpine   investor-owned corp. 8 4 -- 74 48 13 -- 77 79 70 77 79 85 -- -- -- --   FirstEnergy   investor-owned corp. 9 8 3 8 3 6 5 28 23 41 19 13 20 36 25 63 35   Dominion   investor-owned corp. 10 14 14 18 15 14 21 49 55 73 42 48 60 34 36 56 51   NRG   investor-owned corp. 11 6 7 4 7 4 4 13 31 31 13 39 36 9 48 35 18   MidAmerican   privately held corp. 12 9 6 12 4 7 6 35 17 35 37 15 22 47 23 32 37   PPL   investor-owned corp. 13 10 9 10 5 8 8 25 18 39 20 16 28 29 21 50 39   US Corps of Engineers   federal power authority 14 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --   Xcel   investor-owned corp. 15 11 11 14 9 11 12 32 26 40 36 30 34 42 35 39 38   Energy Future Holdings   privately held corp. 16 15 10 5 14 10 1 5 41 29 3 44 2 7 62 6 1   Ameren   investor-owned corp. 17 12 8 9 12 9 7 18 40 19 16 50 9 27 64 26 34   PSEG   investor-owned corp. 18 25 56 52 41 38 50 60 68 84 61 60 69 43 13 72 42   US Bureau of Reclamation   federal power authority 19 87 61 66 62 78 49 73 76 91 65 21 24 72 38 69 26   DTE Energy   investor-owned corp. 20 19 12 7 11 17 9 2 14 18 1 18 11 3 30 30 13   Dynegy   investor-owned corp. 21 16 17 23 37 18 43 40 58 38 48 68 59 46 69 24 64   AES   investor-owned corp. 22 17 13 13 13 16 13 10 20 14 7 29 18 19 43 51 36   GDF Suez   foreign-owned corp. 23 18 41 30 47 22 20 43 62 49 51 71 67 20 57 25 2   Edison Mission Energy   privately held corp. 24 22 16 16 31 19 40 21 47 28 17 55 23 21 63 9 63   PG&E   investor-owned corp. 25 78 -- 86 90 85 -- 90 91 90 87 91 86 -- -- -- --   Pinnacle West   investor-owned corp. 26 33 31 50 17 33 26 56 19 53 57 8 49 64 7 44 22   General Electric   investor-owned corp. 27 21 36 11 36 30 24 1 46 45 2 61 66 1 37 60 9   Great Plains Energy   investor-owned corp. 28 26 15 28 26 20 25 37 35 21 39 38 14 51 58 54 49   Energy Capital Partners   privately held corp. 29 23 -- 77 72 42 -- 81 82 65 82 82 80 -- -- -- --   San Antonio City   municipality 30 34 27 48 50 32 41 52 60 47 53 64 44 61 73 64 54   OGE   investor-owned corp. 31 24 25 21 16 23 27 23 7 30 25 10 42 16 10 12 30   Salt River Project   power district 32 30 21 57 20 26 28 58 16 42 64 14 37 69 14 40 43   Westar   investor-owned corp. 33 28 18 35 21 21 16 44 24 17 47 26 6 60 44 11 15   Oglethorpe   cooperative 34 42 46 37 54 44 58 42 63 60 41 62 58 33 55 48 59   New York Power Authority   state power authority 35 85 -- 87 89 86 -- 89 90 89 79 83 78 -- -- -- --   SCANA   investor-owned corp. 36 32 29 26 42 34 54 30 48 46 28 53 53 23 53 66 62   Santee Cooper   state power authority 37 29 20 42 49 27 44 46 56 36 50 66 39 56 72 71 60   NV Energy   investor-owned corp. 38 27 63 63 57 43 51 62 61 55 67 70 71 57 26 23 24   CMS Energy   investor-owned corp. 39 31 23 20 24 29 19 8 21 25 9 33 41 11 32 37 10   Wisconsin Energy   investor-owned corp. 40 35 26 44 43 28 29 41 38 16 49 51 30 53 59 10 40   Edison International   investor-owned corp. 41 52 58 58 29 57 48 59 28 71 63 11 64 58 2 45 32   Basin Electric Power Coop   cooperative 42 39 19 15 18 24 14 3 4 3 4 5 4 8 16 14 6   TECO   investor-owned corp. 43 36 33 49 55 35 63 48 54 33 54 67 52 55 71 53 71   EDF   foreign-owned corp. 44 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --   Alliant Energy   investor-owned corp. 45 40 24 17 27 31 15 4 15 13 5 25 15 5 34 16 4   Tenaska   privately held corp. 46 37 -- 78 80 59 -- 83 83 68 84 84 88 -- -- -- --   Rockland Capital   privately held corp. 47 38 75 65 74 63 71 70 78 72 73 81 90 2 5 2 23   NE Public Power District   power district 48 59 37 22 32 47 36 15 22 44 6 7 10 14 19 34 45   Associated Electric Coop   cooperative 49 41 32 29 19 36 34 24 3 24 30 4 47 32 6 57 48   Iberdrola   foreign-owned corp. 50 91 -- 91 92 92 -- 91 92 92 86 80 83 -- -- -- --   Riverstone   privately held corp. 51 43 50 43 44 45 61 38 32 37 46 49 55 37 29 19 66   IDACORP   investor-owned corp. 52 81 54 56 52 65 38 50 42 63 40 23 17 50 33 31 20   Los Angeles City   municipality 53 55 66 68 65 60 55 67 59 57 69 65 65 71 38 69 26   Occidental   investor-owned corp. 54 44 -- 90 83 66 -- 88 85 61 91 86 76 -- -- -- --   NiSource   investor-owned corp. 55 45 35 24 46 40 30 9 30 12 14 41 29 15 50 13 31   Tri-State   cooperative 56 46 30 53 25 37 33 45 5 5 52 9 16 65 18 38 50   Omaha Public Power District   power district 57 47 28 25 34 39 22 7 13 4 10 27 13 24 46 55 21   Dow Chemical   investor-owned corp. 58 50 -- 89 85 69 -- 87 86 69 89 89 89 -- -- -- --   JEA   municipality 59 48 51 40 30 49 53 31 10 34 38 20 54 31 9 58 52   Arkansas Electric Coop   cooperative 60 49 40 27 33 46 23 11 11 20 11 22 35 12 17 29 7   Municipal Elec. Auth. of GA   municipality 61 83 62 55 67 73 62 47 67 74 35 56 45 38 60 42 58   Sempra   investor-owned corp. 62 53 -- 81 88 74 -- 84 88 75 85 90 87 -- -- -- --   ArcLight Capital   privately held corp. 63 65 71 71 81 76 73 72 81 77 72 78 73 52 74 8 72   Entegra Power   privately held corp. 64 51 -- 80 84 70 -- 79 84 62 80 85 77 -- -- -- --   BP   foreign-owned corp. 65 69 -- 76 87 81 -- 75 87 83 75 87 91 -- -- -- --   NC Public Power   municipality 66 90 69 64 78 89 69 63 75 86 32 28 8 48 49 33 61   Exxon Mobil   investor-owned corp. 67 57 -- 83 76 77 -- 85 72 76 88 88 92 -- -- -- --   Great River Energy   cooperative 68 54 34 31 39 41 18 19 12 2 23 24 7 41 40 22 3   East Kentucky Power Coop   cooperative 69 56 38 39 56 48 59 26 37 8 31 52 19 45 67 59 65   PNM Resources   investor-owned corp. 70 71 53 62 35 62 64 57 8 43 58 3 27 66 8 41 70   Seminole Electric Coop   cooperative 71 58 45 41 70 52 57 27 65 22 33 72 43 40 75 68 56   PUD No 1 of Chelan County   power district 72 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --   J-Power   foreign-owned corp. 73 60 74 75 77 75 74 74 73 59 74 76 75 68 68 36 74   PUD No 2 of Grant County   power district 74 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --   CLECO   investor-owned corp. 75 61 65 38 53 56 46 22 33 32 27 47 51 4 45 7 12   Intermountain Power Agency   power district 76 62 39 59 23 51 72 54 1 9 62 1 25 70 11 73 73   Energy Northwest   municipality 77 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --   EDP   foreign-owned corp. 78 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --   Lower CO River Authority   state power authority 79 63 55 69 64 55 39 66 50 26 70 63 48 73 65 4 17   El Paso Electric   investor-owned corp. 80 86 70 70 61 82 67 69 39 79 66 17 63 59 2 46 32   Portland General Electric   investor-owned corp. 81 79 64 51 63 72 66 34 45 54 29 43 56 18 31 28 69   Puget Holdings   privately held corp. 82 74 60 61 60 68 65 55 36 48 55 36 46 62 27 17 67   Big Rivers Electric   cooperative 83 64 44 33 38 50 42 17 6 1 21 12 5 30 15 27 41   Austin Energy   municipality 84 82 67 73 68 71 52 71 57 51 71 59 40 73 65 4 16   ALLETE   investor-owned corp. 85 67 43 54 51 53 31 39 25 6 45 35 3 54 54 15 19   Integrys   investor-owned corp. 86 68 47 32 59 54 32 12 34 11 15 42 12 26 61 47 25   UniSource   investor-owned corp. 87 66 49 60 45 58 47 51 9 15 59 19 32 67 22 52 46   TransCanada   foreign-owned corp. 88 80 -- 79 71 80 -- 76 66 66 76 69 70 -- -- -- --   LS Power   privately held corp. 89 70 -- 82 75 79 -- 78 69 58 78 74 72 -- -- -- --   International Paper   investor-owned corp. 90 89 73 -- 69 90 -- -- 53 85 -- 6 81 -- 1 75 --   Buckeye Power   cooperative 91 72 48 34 58 61 35 6 27 7 8 37 21 22 56 67 28   Seattle City Light   municipality 92 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --   E.ON   foreign-owned corp. 93 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --   Grand River Dam Authority   state power authority 94 76 59 45 40 67 37 16 2 23 18 2 38 13 4 3 5   Avista   investor-owned corp. 95 88 68 67 73 88 70 61 64 82 60 46 57 62 27 18 67   Brazos Electric Power Coop   cooperative 96 73 -- 84 82 83 -- 82 74 67 83 77 82 -- -- -- --   Hoosier Energy   cooperative 97 75 52 46 66 64 56 20 44 10 24 58 26 39 70 62 53   Sacramento Municipal Util Dist   municipality 98 84 -- 88 91 87 -- 86 89 78 90 92 84 -- -- -- --   Centrica   foreign-owned corp. 99 77 -- 85 79 84 -- 80 70 64 81 75 79 -- -- -- --   Waste Management   investor-owned corp. 100 92 72 72 86 91 68 65 80 88 44 31 1 49 20 1 11
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