Tree Line USA Utilities

Updated June 2024. Next Update: June 2025.

2023

• Huntsville Utilities (Alabama)
• Golden Valley Electric Association (Alaska)
• Chugach Electric Association (Alaska)
• Matanuska Electric Association (Alaska)
• Arizona Public Service (Arizona)
• Salt River Project (Arizona)
• Carroll Electric Cooperative Corporation (Arkansas)
• Entergy Corporation (Arkansas)
• City of Lompoc Electric Utility (California)
• Sacramento Municipal Utility District (California)
• Pacific Gas & Electric (California)
• CORE Electric Cooperative (Colorado)
• Colorado Springs Utilities (Colorado)
• Delmarva Power and Light (Delaware)
• Winter Park Electric (Florida)
• JEA Utility (Florida)
• Florida Keys Electric Cooperative (Florida)
• Tampa Electric Company (Florida)
• Sumter Electric Cooperative Inc (Florida)
• Duke Energy Florida (Florida)
• Orlando Utilities Commission (Florida)
• North Georgia Electric Membership Corporation (Georgia)
• Georgia Power Company (Georgia)
• Idaho Power Company (Idaho)
• City of Naperville Electric Utility (Illinois)
• ComEd (Illinois)
• Duke Energy Indiana (Indiana)
• Duke Energy Ohio (Indiana)
• Duke Energy Kentucky (Indiana)
• Tipmont REMC (Indiana)
• AES Indiana (Indiana)
• Northern Indiana Public Service Company (Indiana)
• Waverly Utilities (Iowa)
• MidAmerican Energy Company (Iowa)
• Alliant Energy (Iowa)
• Blue Grass Energy (Kentucky)
• Bowling Green Municipal Utilities (Kentucky)
• Pepco an Exelon Company (Maryland)
• National Grid USA (Massachusetts)
• Mishawaka Utilities (Michigan)
• Rochester Public Utilities (Minnesota)
• East Central Energy (Minnesota)
• Cooperative Energy (Mississippi)
• Kirkwood (Missouri)
• Liberty- Central (Missouri)
• Ralls County Electric Cooperative (Missouri)
• Carthage Water & Electric Plant (Missouri)
• Crawford Electric Cooperative (Missouri)
• Cuivre River Electric Cooperative (Missouri)
• Ameren (Missouri)
• Independence Power and Light (Missouri)
• Columbia Water and Light (Missouri)
• City Utilities of Springfield (Missouri)
• Nebraska Public Power District (Nebraska)
• Nebraska City Utilities (Nebraska)
• Omaha Public Power District (Nebraska)
• Eversource Energy - CT (New Hampshire)
• Eversource Energy - NH (New Hampshire)
• Eversource Energy - MA (New Hampshire)
• PSE&G (New Jersey)
• Atlantic City Electric (New Jersey)
• PSEG Long Island (New York)
• Consolidated Edison Company of New York (New York)
• Town of Massena (New York)
• Orange and Rockland Utilities (New York)
• Consolidated Cooperative Inc. (Ohio)
• Pioneer Electric Cooperative (Ohio)
• Cuyahoga Falls Electric Dept. (Ohio)
• City of Westerville Electric (Ohio)
• Oklahoma Electric Cooperative (Oklahoma)
• People's Electric Cooperative (Oklahoma)
• Edmond Electric (Oklahoma)
• Oklahoma Gas and Electric (Oklahoma)
• Public Service Company of Oklahoma (Oklahoma)
• PacifiCorp (Oregon)
• First Energy- Potomac Edison & Mon Power (Pennsylvania)
• FirstEnergy Pennsylvania (Pennsylvania)
• FirstEnergy- New Jersey (Pennsylvania)
• PECO Energy Company (Pennsylvania)
• Citizen's Electric Company (Pennsylvania)
• Duquesne Light Company (Pennsylvania)
• First Energy Corporation (Pennsylvania)
• Rhode Island Energy (Rhode Island)
• Duke Energy Progress (South Carolina)
• Duke Energy Carolinas (South Carolina)
• Duke Energy Carolinas (South Carolina)
• Duke Energy Progress (South Carolina)
• BPW (South Carolina)
• Middle Tennessee Electric Membership Corporation (Tennessee)
• City of Oak Ridge Electrical Department (Tennessee)
• CDE Lightband (Tennessee)
• Tullahoma Utilities Authority (Tennessee)
• Pulaski Electric System (Tennessee)
• Sevier County Electric System (Tennessee)
• Gibson Electric Membership Corp (Tennessee)
• Nashville Electric Service (Tennessee)
• Appalachian Electric Cooperative (Tennessee)
• Cookeville Electric Department (Tennessee)
• BrightRidge (Tennessee)
• Morristown Utility Systems (Tennessee)
• Knoxville Utilities Board (Tennessee)
• Clinton Utilities Board (Tennessee)
• Cleveland Utilities (Tennessee)
• Bristol Tennessee Essential Services (Tennessee)
• Denton Municipal Electric (Texas)
• Garland Power & Light (Texas)
• Brownsville Public Utilities Board (Texas)
• CenterPoint Energy (Texas)
• Austin Energy (Texas)
• Oncor Electric Delivery (Texas)
• Brigham City Public Power (Utah)
• Provo City Power (Utah)
• Vermont Electric Power Company (Vermont)
• Shenandoah Valley Electric Cooperative (Virginia)
• A & N Electric Cooperative (Virginia)
• Mecklenburg Electric Cooperative (Virginia)
• Rappahannock Electric Cooperative (Virginia)
• Cowlitz PUD (Washington)
• Seattle City Light (Washington)
• Benton Rural Electric Association (Washington)
• Avista Utilities (Washington)
• Tacoma Power (Washington)
• Snohomish County PUD 1 (Washington)
• Richland Energy Service (Washington)
• Puget Sound Energy (Washington)
• Clark Public Utilities (Washington)
• Benton Public Utility District (Washington)
• Oakdale Electric Cooperative (Wisconsin)
• Menasha Utilities (Wisconsin)
• American Transmission Company (Wisconsin)
• Pierce Pepin Cooperative Services (Wisconsin)
• Shawano Municipal Utilities (Wisconsin)
• Richland Electric Cooperative (Wisconsin)
• We Energies (Wisconsin)
• Madison Gas and Electric Company (Wisconsin)
• Wisconsin Public Service (Wisconsin)