The Volunteer State
TN Utilities
IOU, Municipal, Cooperative, Retail Energy Suppliers, Wholesale
Tennessee Consumer Choice: No Deregulation
Utility: Consumers in Tennessee may not choose their energy supplier.
Tennessee Electric Choice: 
Tennessee Gas Choice: 
Deregulated Gas Year Electric Year
Tennessee No N/A No N/A Competitive gas service is available for commercial and industrial customers who average more than 500 therms/day of gas use in the Piedmont service area.
STATE NERC INTERCONNECTION ISO/RTO
Tennessee SERC, RFC Eastern None
Region: Southeast
Tennessee Population: 6,829,174 People/ Land Mile: 165.6
Square Miles: 42,144 Land Miles: 41,235 Water Miles: 909
Yearly Values:
Net Generation 81,554,917 MWH Retail Sales 102,911,183 MWH Gas 403.5 trillion Btu
Counties TN Zip Codes TN Utility Zip Codes
NERC Authority: SERC, RFC
FERC Authority: Southeast Natural Gas Region
Electric Retail Average: 9.6 cents/kWh (Ave)
Tennessee Power Mix
U.S. Commodity Sources 2019:
• Nuclear: 43.7%
• Coal: 22.9%
• Natural gas: 20.3%
• Hydro: 11.3%
• Solar PV: 0.4%
• Biomass: 1.1%
2013 U.S. Commodity Sources:
• Nuclear: 36%
• Coal: 41%
• Natural gas: 6%
• Hydro: 15%
TN Solar: Net Metering, Tax Credits, Solar Rebates
State Rebates:
State Contacts:
State Links:
State Authorities:
Tennessee Regulatory Authority
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