Solar Panel Savings in Erwin, TN
Calculate how much you can save with solar panels in Erwin, Tennessee. Based on 4.4 peak sun hours/day and 11.1¢/kWh average electricity rate.
4.4
Peak Sun Hours/Day
11.1¢
Avg Rate (¢/kWh)
13.8 yr
Payback Period
$29k
25-Year Savings
Erwin Solar Overview
Calculate Your Erwin Solar Savings
Erwin average: $99/mo
South-facing roofs produce the most energy
Add $8,000-$12,000 for whole-home battery backup
Annual Production
kWh/year
Annual Savings
per year
Net System Cost
after 30% ITC
Payback Period
break-even time
25-Year Total Savings
$29,102
Monthly Savings
$71
Federal Tax Credit
$4,932
Cumulative Savings vs System Cost
Cost Breakdown
| Item | Erwin | National Avg |
|---|---|---|
| Gross System Cost (6kW) | $16,440 | $17,100 |
| Federal Tax Credit (30%) | -$4,932 | -$5,130 |
| Net System Cost | $11,508 | $11,970 |
| Cost Per Watt | $2.74/W | $2.85/W |
Solar Potential in Erwin
Sun Hours vs National Average
Erwin gets 2% less sun than the national average, but high-efficiency panels compensate.
Climate Advantages
- 211 sunny days per year
- Average temperature: 57°F — cooler temps actually improve panel efficiency
- Average roof size: 1,733 sq ft — enough for a 96-panel system
Erwin Solar Incentives & Programs
Federal Investment Tax Credit (ITC)
30% of total system cost deducted from federal taxes. For a $16,440 system, that's a $4,932 credit. Valid through 2032.
Tennessee State Incentives
Federal 30% ITC; check local utility for additional rebates.
Net Metering — TVA
TVA does not currently offer standard net metering in Erwin. Alternative buyback programs may be available — contact them for details.
Environmental Impact in Erwin
3.2
Tons CO2 Offset/Year
53
Equivalent Trees Planted
0.7
Homes Worth of Energy
Based on 7,709 kWh annual production with a 6kW system. EPA average: 0.417 metric tons CO2 per MWh, 10,632 kWh per US home.
Solar Energy in Erwin, Tennessee
Erwin, Tennessee receives an average of 4.4 peak sun hours per day, offering adequate solar resources for homeowners looking to reduce their electricity bills. With electricity rates averaging 11.1¢ per kWh from TVA, below the national average, but with rates rising 2-3% annually, the long-term savings are still meaningful.
A typical 6kW solar system in Erwin produces approximately 7,709 kWh per year, saving homeowners an estimated $852 annually. The system pays for itself in about 13.5 years, after which you enjoy essentially free electricity for the remaining 11+ years of the system's warranty life.
Erwin has a solar penetration rate of 3.8% — indicating early-stage solar adoption with tremendous growth potential as prices continue to fall. The cost of living index of 85.1 (national average: 100) reflects a lower cost of living, keeping installation costs competitive.
Other Cities in Tennessee
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Clarksville, TN
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Memphis, TN
Murfreesboro, TN
Nashville, TN
Frequently Asked Questions
How much do solar panels cost in Erwin, TN?
The average cost of a 6kW solar panel system in Erwin is approximately $16,440 before incentives ($2.74/watt). After the 30% federal Investment Tax Credit, the net cost is about $11,508. Federal 30% ITC; check local utility for additional rebates.
How many peak sun hours does Erwin get?
Erwin, TN receives an average of 4.4 peak sun hours per day and approximately 211 sunny days per year. This is near the national average, providing good conditions for residential solar panels.
What is the solar payback period in Erwin?
The average solar payback period in Erwin is approximately 13.8 years. After payback, your solar panels generate essentially free electricity for the remaining 15-20 years of their warranty. Over 25 years, total savings can reach $29,102.
Does Erwin have net metering?
Erwin does not currently have standard net metering. However, TVA may offer alternative solar buyback programs. Contact them for current rates and policies.
Is solar worth it in Erwin, TN?
Yes, solar is a solid investment in Erwin. While the 13.8-year payback is moderate, you'll still save $29,102 over 25 years. The 30% federal tax credit and local incentives help make solar financially attractive.