Battery Storage Cost in Tennessee
Home battery prices, incentives, and solar+storage savings for Tennessee homeowners in 2026.
Tennessee Battery Storage Overview
The average cost of home battery storage in Tennessee is $801 per kWh of storage capacity. A typical 10 kWh system costs approximately $8,010 before incentives, or $5,607 after the 30% federal Investment Tax Credit (ITC).
Tennessee receives 4.3 average peak sun hours daily, enabling solar-plus-storage homeowners to achieve 60-80% grid independence. Battery storage captures daytime solar overproduction for use during evening peak hours, reducing grid dependence year-round.
Popular Battery Systems in Tennessee
| Battery System | Capacity | Power | Installed Cost | Warranty |
|---|---|---|---|---|
| Enphase IQ Battery 5P | 5 kWh | 3.84 kW | $6,000 - $8,000 | 15 years |
| Franklin WholHome | 13.6 kWh | 5 kW | $13,000 - $16,000 | 12 years |
| SolarEdge Home Battery | 9.7 kWh | 5 kW | $10,000 - $13,000 | 10 years |
| Generac PWRcell | 18 kWh | 4.5 kW | $12,000 - $20,000 | 10 years |
Solar + Battery Storage in Tennessee
Solar Only
- Export excess to grid during the day
- Buy power from grid at night
- No backup during outages
- Savings depend on net metering rates
Solar + Battery
- Store excess solar for nighttime use
- Additional 14% savings vs solar alone
- 7+ hours backup power
- While Tennessee has relatively moderate electricity rates, battery storage still provides peak shaving value of $15-$40/month for homeowners on time-of-use plans, plus the added benefit of backup power during outages.
Battery Storage FAQ - Tennessee
The average cost of home battery storage in Tennessee is $801 per kWh. A typical 10 kWh system costs $8,010 before incentives, or $5,607 after the 30% federal tax credit.
Popular battery systems in Tennessee include Enphase IQ Battery 5P, Franklin WholHome, SolarEdge Home Battery, Generac PWRcell. The best choice depends on your backup needs, budget, and whether you have existing solar panels. The Tesla Powerwall 3 is the most popular choice nationally due to its high power output and competitive pricing.
Tennessee does not currently have a dedicated state battery incentive program, but the 30% federal Investment Tax Credit applies to all battery installations with 3+ kWh capacity, reducing your cost by nearly a third.
A typical home battery in Tennessee can provide 7+ hours of backup power for essential loads like lights, refrigerator, WiFi, and phone charging. For whole-home backup during extended outages, you may need multiple batteries or a larger system like the Generac PWRcell.
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