Solar Panel Cost in Nashville, TN
Estimated costs and savings for ZIP code 37204 — updated for 2026
Urgent tax credit deadlines
- Section 48E phase-out completes December 31, 2027 — projects must be placed in service by then (469 days left).
Gross Cost
$17,570
7kW system
Annual Savings
$1,540
$128/month
Payback Period
11.4 yrs
Break-even
Peak Sun Hours
4.9
hrs/day avg
Solar System Cost Breakdown — Nashville, TN
Estimated costs and savings for different residential solar system sizes in ZIP 37204. Costs based on TN average of $2.51/W and utility rate of $0.14/kWh.
| System | Cost | Savings/yr | Payback |
|---|---|---|---|
| 4 kW | $10,040 | $880 | 11.4 yrs |
| 5 kW | $12,550 | $1,100 | 11.4 yrs |
| 6 kW | $15,060 | $1,320 | 11.4 yrs |
| 7 kW(typical) | $17,570 | $1,540 | 11.4 yrs |
| 8 kW | $20,080 | $1,760 | 11.4 yrs |
| 10 kW | $25,100 | $2,200 | 11.4 yrs |
Solar Production in Nashville, Tennessee
Average Peak Sun Hours
4.9 hours/day
Good solar resource — solid investment
Est. Annual Production (7kW)
10,642 kWh
Based on 4.9 PSH × 7kW × 365 days × 85% efficiency
Average Utility Rate
$0.14/kWh
Above-average rates — good solar savings potential
Cost Per Watt in TN
$2.51/W
Below national average — competitive market
Solar Panel FAQ — Nashville, TN
How much do solar panels cost in Nashville, TN?
A typical 7kW solar system in Nashville, TN (ZIP 37204) costs approximately $17,570 before any incentives. This works out to about $2.51 per watt installed. Smaller systems start around $10,040, while larger 10kW systems can cost up to $25,100.
How long is the solar payback period in Nashville?
The average solar payback period in Nashville, TN is approximately 11.4 years for a 7kW system. With estimated annual savings of $1,540, the system pays for itself and then generates free electricity for the remaining 15-20+ years of its lifespan.
How much can I save with solar panels in 37204?
Homeowners in Nashville, TN (ZIP 37204) can save approximately $128 per month or $1,540 per year with a standard 7kW solar system. Over 25 years, total savings can exceed $38,500, depending on utility rate increases.
How many peak sun hours does Nashville get?
Nashville, TN receives an average of 4.9 peak sun hours per day. This is near the national average, making solar a solid investment in this area.
What size solar system do I need for my home in Nashville?
The average home in Nashville, TN needs a 7kW solar system to offset their electricity usage. The exact size depends on your monthly electric bill, roof orientation, and available space. A 7kW system would produce approximately 10,642 kWh annually in ZIP 37204.
Solar Tools for Tennessee
Looking for another area? Browse all ZIP codes →