Tennessee Solar Overview
Tennessee is tricky because of TVA. Your local utility sets their own solar policies, even though they all buy power from the Tennessee Valley Authority. Nashville Electric, KUB in Knoxville, and MLGW in Memphis all do things differently. You really need to call your specific utility before assuming anything about solar in Tennessee.
Tennessee is unique—most of the state is served by local power companies that buy power from TVA (Tennessee Valley Authority). Solar policies vary by local utility, but TVA's Green Connect program provides a consistent option.
How Tennessee Power Works
- TVA: Generates/transmits power wholesale
- Local utilities: Buy from TVA, sell to you
- Examples: Nashville Electric, KUB, Memphis Light Gas & Water
- Solar policy: Varies by local utility
TVA and Local Utilities
Understanding the Structure
- TVA sets rates: Wholesale rates affect your costs
- Local utility delivers: They set retail rates and solar policies
- Green Connect: TVA program available through participating utilities
- Check your utility: Solar policies vary significantly
State Incentives
Tennessee Programs
- Property tax exemption: Some counties exclude solar value
- No state income tax: No state tax credit available
- Utility programs: Vary by local power company
- TVA Green Connect: Program for distributed generation
Federal Options
- Purchased systems: No federal credit (25D ended 2025)
- PPA/Lease: Still benefits from 30% credit through 2027
Solar Costs
| System Size | Gross Cost | After Incentives |
|---|---|---|
| 6 kW | $14,400-18,000 | $14,400-18,000 |
| 8 kW | $19,200-24,000 | $19,200-24,000 |
| 10 kW | $24,000-30,000 | $24,000-30,000 |
TVA Green Connect
How It Works
- Program type: Distributed generation program
- Compensation: Credit for solar generation
- Availability: Through participating local utilities
- Application: Apply through your local power company
Production Estimates
- Annual production: 1,300-1,450 kWh per kW installed
- 8 kW system: ~10,400-11,600 kWh/year
- Best months: April-September
- Nashville area: 4.6 peak sun hours average
The Bottom Line
Tennessee solar depends heavily on your local utility. Check with your power company about net metering and Green Connect availability. Good sunshine makes solar technically viable; local policy determines economics.
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