- Chestnut Ridge Antique Ctr
- Chestnut Ridge Bow & Gun Club
- Chestnut Ridge Cemetery Assn
- Cheyenne Light Fuel & Power Co
- Chgo Power Group
- Chgo Power Group
- CHI Operations Inc
- Chickasaw Electric Cooperative
- Childers Electric Inc
- Chimney Rock Public Power Dist
- Chimney Rock Public Power Dist
- Chitimacha Public Works Line
- Chitina Electric Inc
- Choctaw Electric Co Op Inc
- Choctaw Electric Co-Op
- Choctaw Electric Co-Op Inc
- Choctaw Electric Co-Op Inc
- Choctaw Generation
- Choctawhatchee Electric Co
- Choctawhatchee Electric Co
- Choctawhatchee Electric Coop
- Choctawhatchee Electric Coop
- Choice Electric Inc
- Choptank Electric
- Choptank Electric Cooperative
- Christian Power Co
- Christoffersen Power & Light
- Chubu Electric Power Co
- Chugach Electric Assn Inc
- Chugach Electric Assn Inc
- Chugah Electric Assn Inc
- Chugah Electric Assn Inc
- Cielo Windpower
- Cielo Windpower
- CILCO
- CILCO
- Cilcorp
- Cilcorp
- Cimarron Electric Security
- Cinergy Corp
- Cinergy Corp
- Cinergy Corp
- Cinergy Corp
- Cinergy Corp
- Cinergy Corp
- Cinergy/Cinti Gas & Elec Co
- Cirro Energy
- Cirro Energy
- Cirro Energy
- Citilites
- Citiwide Electric
- Citizen's Electric Corp
- Citizen's Electric Corp
- Citizen's Electric Corp
- Citizens Electric Corp
- Citizens Electric Corp
- Citizens Utilities Co
- City Electric
- City Electric
- City Electric Power
- City Electric Supply
- City Light & Water Office
- City Of Bedford
- City Of Cairo
- City Of College Station
- City Of Griffin/Meag Power
- City Of Hamilton Electric Ofc
- City Of Seguin Electric Dept
- City Public Svc
- City Public Svc
- City Utilities Of Springfield
- City Water & Light
- City Water & Light Office
- City-Belton Combined Utilities
- Claiborne Electric Co-Op Inc
- Clairborne Electric Coop
- Clark County REMC
- Clark Electric Co-Operative
- Clark Electric Cooperative
- Clark Energy Co-Op Inc
- Clark Energy Cooperative
- Clark Energy Cooperative Inc
- Clark Public Utilities
- Clark Public Utilities
- Clark Public Utilities
- Clark Public Utilities
- Clarke Consumer Svc
- Clarke-Washington Elec Mbrshp
- Clarke-Washington Electric
- Classic Electric-Central
- Clatskanie People's Utility
- Clay County Electric Co-Op
- Clay Electric Co-Op
- Clay Electric Co-Op
- Clay Electric Co-Op
- Clay Electric Co-Op
- Clay Electric Co-Op Inc
- Clay Electric Co-Op-Rec
- Clay Electric Co-Op-Rec
- Clay-Union Electric Corp
- Claytor Hydro Plant
- Clear Lakes Power Plant
- Clearwater Power Co
- Clearwater-Polk Electric Inc
- Cleveland Electric
- Cleveland Electric Co
- Cleveland Electric Co
- Cleveland Electric Co
- Cliffside Steam Station
- Climarex Energy Co
- Clinton County Electric Co-Op
- Clinton County Electric Co-Op
- Clinton County Electric Co-Op
- Clinton Utilities Board
- Clintonville Electric Plant
- Cloud Peak Electric Inc
- Cloverland Electric Co-Op
- Cloverland Electric Co-Op
- Cloverland Electric Coop
- Cloverland Electric Coop
- CMS Electric Co-Op
- CMS Electric Cooperative
- Co Mo Electric Co-Op Inc
- Co Mo Electric Cooperative Inc
- Coahoma Electric Power Assn
- Coahoma Electric Power Assn
- Coal Creek Station
- Coal-Fired Complex
- Coalinga Cogeneration Co
- Coast Electric Power Assn
- Coast Electric Power Assn
- Coast Electric Power Assn
- Coast Electric Power Assn
- Coast Electric Power Assn
- Coastal Electric Co-Op
- Coastal Electric Coop
- Coastal Lighting & Supply
- Cobb Electric Inc
- Cobb Electric Membership Corp
- Cobb Electric Membership Corp
- Cobb Energy
- Cobisa Corp
- Cobra Electric Corp
- Codington Clark Electric Co-Op
- Cogentrix Energy Inc
- Cogentrix Energy Inc
- Coggon Municipal Light Plant
- Cold Power Inc
- Coldwater Board Of Utilties
- Coleman County Electric Co-Op
- Coles-Moultrie Electric Co-Op
- Coles-Moultrie Electric Co-Op
- Colorado Energy Management LLC
- Colquitt Electric Corp
- Colquitt Electric Corp
- Colquitt Electric Corp
- Colquitt Electric Corp
- Colquitt Electric Membership
- Colquitt Electric Membership
- Coltin Electric Inc
- Columbia Basin Electric Co-Op
- Columbia Basin Electric Co-Op
- Columbia Power & Water Systems
- Columbia Power Co-Op
- Columbia Power Co-Op
- Columbia River PUD
- Columbia Rural Elec Assn Inc
- Columbia Rural Electric Assn
- Columbus & Southern Electric
- Columbus & Southern Ohio Elctc
- Columbus Electric Co-Op
- Columbus Electric Co-Op Inc
- Columbus Electricity Svc
- Columbus Southern Power Co
- Colwell Electric
- Comanche County Electric Co-Op
- Comanche County Electric Coop
- Comanche Electric Co-Op
- Commercial Electric Co
- Commercial Energy Of Montana
- Commercial Water & Energy Co
- Commonwealth Chesapeake
- Commonwealth Power Co
- Commonwealth Power Co
- Commonwealth Power Co
- Communication Power Solutions
- Community Electric Co-Op
- Community Energy Inc
- Community Energy Inc
- Compact Power
- Competitive Energy Svc
- Competitive Power Ventures Inc
- Complete Power Technology
- Comprehensive Power Inc
- Computer Power Inc
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison
- Con Edison Co Of Ny
- Con Edison Energy
- Con-Tech Power Systems Elec
- Concho Valley Electric Co-Op
- Concho Valley Electric Coop
- Concordia Electric
- Concordia Electric Cooperative
- Concordia Electric Cooperative
- Congaree Road Electric Sub-Sta
- Connect Electric
- Connecticut Light & Power Co
- Connecticut Light & Power Co
- Connecticut Municipal Electric
- Connecticut Renewable Energy
- Connecticut Yankee Atomic Pwr
- Connexus Energy
- Conserve Electric
- Conserve Electric
- Consolidated Elect Co-Op
- Consolidated Electric
- Consolidated Electric Co-Op
- Consolidated Electric Coop
- Consolidated Electrical Distr
- Consolidated Hydro
- Consolidated Hydro Inc
- Consolidated Hydro Inc
- Consolidated Hydro Se-Piedmont
- Consolidated Hydro Southeast
- Consolidated Power Producers
- Consolidated Water Power Co
- Constellation
- Constellation Energy Group
- Constellation Generation Group
- CONSTELLATION New Energy Inc
- Constellation Newenergy
- Constellation Newenergy
- Constellation Newenergy Inc
- Constellation Power
- Constellation Power
- Constellation Power
- Consumer Buying Power
- Consumer Energy
- Consumer Power Mas
- Consumers Energy Co
- Consumers Energy Co
- Consumers Energy Co
- Consumers Power Co
- Consumers Power Co
- Consumers Power Co
- Continental Divide Elec Co-Op
- Continental Divide Electric
- Continental Power Corp Hawaii
- Contract Asset Management Inc
- Contract Asset Management Inc
- Control Specialist Inc
- Control Specialist Inc
- Controlled Power Co
- Controlled Power Co
- Conway Corp
- Cook Energy Information Ctr
- Cook Nuclear Power Plant
- Cooke County Electric Coop
- Cookson Hill Elect Co-Op Inc
- Cookson Hills Electric Co-Op
- Cooper Electric
- Cooper Power Systems Inc
- Cooper Power Systems Inc
- Cooper Power Systems Inc
- Cooper Power Systems Inc
- Cooper Power Systems Inc
- Cooper Power Systems Inc
- Cooper Power Systems Inc
- Cooper Power Systems Inc
- Cooper Power Tools
- Cooper Power Tools
- Cooper Power Tools
- Cooper Power Tools
- Cooper Power Tools
- Cooper's Electric Svc
- Cooperative Power & Light
- Coos Curry Electric Coop
- Coos-Curry Electric Co-Op Inc
- Coos-Curry Electric Co-Op Inc
- Coos-Curry Electric Co-Op Inc
- Coos-Curry Electric Co-Op Inc
- Coosa Valley Electric Co-Op
