Home Batteries in Franklin: What to Know
Franklin averages about 7 hours of grid outages a year, which is the main reason homeowners here install storage. A standard 13.5 kWh battery runs your essentials (fridge, lights, internet) for roughly 15 hours and installs for around $13,500.
On bills, a battery in Franklin saves about $172 a year by storing cheap power and using it at peak times (a $0.04/kWh local peak-to-off-peak gap), or roughly -$10,308 over 15 years. Note: the 30% federal battery tax credit expired at the end of 2025, so Tennessee state and utility programs are now the main incentives. The local utility is Nashville Electric. Most homeowners buy storage for resilience first — the bill savings are a bonus.
Cost & Backup Breakdown
Standard 13.5 kWh battery in Franklin
15-Year Bill Savings Projection
Time-of-use arbitrage only — the backup/resilience value is on top of this.
Available Rebates
Common Questions
How much does a home battery cost in Franklin?
A standard 13.5 kWh home battery in Franklin, Tennessee costs about $13,500 installed. The federal 25D battery credit expired December 31, 2025.
How much backup power does a battery give in Franklin?
A 13.5 kWh battery runs a Franklin home's essentials for about 15 hours. Franklin averages roughly 7 hours of grid outages a year, so a single battery covers most events.
Will a battery save money in Franklin?
On time-of-use bills, a 13.5 kWh battery saves about $172 per year in Franklin — around -$10,308 over 15 years. Most Franklin homeowners buy a battery primarily for backup power; the bill savings are a bonus.
Planning other home-energy upgrades?
Solar, batteries, heat pumps and EV chargers all work together. Run the numbers on the rest of your electrification plan: