Solar ROI Calculator for Knoxville, TN

Stop guessing. See exactly how much the 30% Federal Credit saves you in 37901.

Calculate Savings for Knoxville (37901)

$150

Fetching NREL Solar Data for Knoxville...

25-Year Savings

$57,563

Break-Even

10.1 Years

Net Cost

$19,992

Get 3 Official Quotes for 37901 →

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Is Solar Worth it in Knoxville?

Residents of Knoxville look to solar primarily for stability. Locking in your energy costs now protects you from future rate hikes that are expected to hit the region in the coming years.

Homeowners in Knoxville are currently paying an average of 13.0 cents per kWh. Solar in Tennessee is currently a lifestyle choice for energy independence rather than a purely short-term financial play.

With the Federal Solar Investment Tax Credit (ITC) currently set at 30%, a typical 6kW to 10kW residential system in the 37901 area can typically pay for itself in just 9.2 to 9 years. After this "break-even" point, your system generates effectively free electricity for the remainder of its 25-year lifespan.

Key Knoxville Statistics

  • Avg Rate: 13.0¢ / kWh
  • Sun Exposure: High (Southern US)
  • Est. Payback: 9.2 Years
  • Incentive: 30% Federal ITC

State Incentives for TN

Beyond the federal credit, residents of Knoxville should check for local net metering policies offered by their specific utility provider. These policies determine how much you get paid for sending excess energy back to the grid.

Frequently Asked Questions in Knoxville

Is solar worth it in Knoxville, TN?

Yes. With electricity rates in Knoxville currently averaging 13.0 cents/kWh, most homeowners see a break-even point between 6-9 years. This is significantly better than the national average.

Does the 30% Tax Credit apply to residents of TN?

Absolutely. Homeowners in Knoxville are eligible for the 30% Federal Investment Tax Credit (ITC). This is a dollar-for-dollar reduction in the income tax you owe.

How long do solar panels last?

Modern tier-1 solar panels are warrantied for 25 years but often last 30+ years. Our calculator accounts for a 0.5% annual degradation in efficiency.

What is Net Metering?

Net metering allows you to sell excess electricity back to the grid. Policies vary by utility company in your area, but it is a key factor in maximizing ROI.

Methodology: How We Calculated This

  • Irradiance: NREL PVWatts® V8 API data for coords 35.9606, -83.9207.
  • Escalation: Conservative 2.5% annual utility rate increase.
  • Degradation: 0.5% annual panel efficiency loss.

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