TN · Solar

Solar quotes in Knoxville, TN.

One real quote from a vetted local Knoxville installer, sized to your roof, your bill, and every federal + state rebate you qualify for.

One vetted local installer · no lead list

What you get

One vetted local Knoxville installer
Rebates checked for your exact address
No call-center spam, no lead list

7.5 kW
Average system size: $2.80/W
Average cost (USD): 12 yrs
Average payback: 90+
Local installers

Why solar in Knoxville

TVA maintains a network of Quality Contractors, trained and approved to install residential solar in its service territory, and access to that network is part of what TVA Green Connect provides. That is worth knowing in Knoxville for a practical reason: in a state where the incentive column is nearly empty, the quality and diligence of the installer is a larger share of your outcome than it would be somewhere with a thick stack of programmes to fall back on.

What Green Connect provides

Green Connect is the route TVA offers residential customers going solar. It connects you with your local power company to establish the interconnection agreement that Dispersed Power Production requires.

It also gives access to a network of Quality Contractors who have been trained and approved by TVA. That is a screening layer rather than a guarantee, but a screening layer is worth something.

Because an interconnection agreement is required for Dispersed Power Production, TVA advises applying for Green Connect as well where the option is available to you.

Ask your installer whether they are in the TVA Quality Contractor network and whether your project is going through Green Connect. If not, ask what route the interconnection agreement is taking instead.

Why the installer matters more in a lean market

In a state with generous rebates and a retail-rate net metering tariff, a mediocre design still produces a reasonable result, because the programmes carry it. Tennessee has neither.

There is no state solar tax credit, the federal residential credit ended for property placed in service after December 31, 2025, electricity is cheap at around 13 cents per kWh, and exports earn only avoided cost.

That means the return comes almost entirely from design decisions: how the system is sized against your daytime load, how well the production estimate reflects your actual roof, and whether the interconnection is handled cleanly.

Those are all things an installer either does well or does not. In Tennessee, choosing the right one is a larger part of the outcome than in most states.

How to tell a careful installer from a confident one

Ask for the production estimate in kilowatt hours per year, with the data source named and location-specific irradiance for your address rather than a regional average. East Tennessee terrain creates real variation between nearby properties.

Ask what shading analysis was done and what it assumed about tree growth over the system life. A wooded lot modelled on today canopy will underdeliver in ten years.

Ask what self-consumption share the savings model assumed, and ask to see a smaller system modelled alongside the proposal. An installer who has run that comparison already is working the Tennessee tariff properly.

Ask for references from projects on your own local power company, completed recently. Interconnection practice varies between utilities and recent local experience is the thing that actually speeds a project up.

Costing it out on TVA terms

The 30 percent federal Residential Clean Energy Credit under Section 25D expired for property placed in service after December 31, 2025, so a cash or loan purchase in Knoxville receives no federal tax credit, and Tennessee has no state solar tax credit.

Section 48E survives at 30 percent for third-party owners under leases and power purchase agreements, so ask what a provider claims and what reaches you in the rate.

What exists is the retail value of self-consumed generation, avoided-cost value on exports under Dispersed Power Production, and an interconnection agreement with your local power company.

Ask for a projection built on a location-specific production estimate, a stated self-consumption share, your own rate from a recent bill, and fixed charges included. In a lean market the quality of those four inputs is the return.

Incentives & rebates

Net metering: No net metering; TVA avoided-cost export purchase

Tennessee does not offer net metering. The Tennessee Valley Authority supplies effectively all electricity in the state through more than 150 local power companies and cooperatives, and residential solar exports are handled through TVA Dispersed Power Production, under which a customer may sell all or part of their generation to TVA at TVA avoided cost. Avoided cost is a wholesale-style measure of what the electricity would otherwise have cost TVA to supply, and it sits well below the retail rate a household pays. That produces a large gap between the two things a solar system can do with a kilowatt hour. Electricity you consume at the moment it is generated is worth the full retail rate, because you simply do not buy it. Electricity you export is worth avoided cost. Nothing accumulates as a retail-rate credit bank to draw down later. The practical consequences are that oversizing is penalised, that a system covering 70 to 80 percent of annual consumption frequently returns better than one covering 100 percent, and that shifting flexible loads into daylight hours is one of the few free improvements available. An interconnection agreement with your local power company is required, and because each of those 150-plus companies administers its own process and adds its own distribution charges, the specifics genuinely vary by address.

Related Tennessee resources

Tennessee solar incentives & rebates Full breakdown of federal, provincial, and utility programs.

How payback works in Tennessee

System cost: $21,000
Estimated net cost: $21,000
Estimated payback: ~13.0 years
25-year net savings: ~$19,500

These figures are illustrative; your actual quote reflects your roof, sun exposure, and local utility rates.

Frequently asked questions

What is TVA Green Connect?

The route TVA provides for residential customers going solar. It connects you with your local power company to establish the interconnection agreement Dispersed Power Production requires, and gives access to a network of Quality Contractors trained and approved by TVA.

Does using a TVA Quality Contractor guarantee a good job?

It is a screening layer rather than a guarantee, but a screening layer is worth something. Ask whether your installer is in the network and whether your project is going through Green Connect, and if not, what route the interconnection is taking.

Why does the installer matter so much in Tennessee?

Because there is little else carrying the result. No state credit, no federal residential credit since the end of 2025, cheap electricity and avoided-cost exports mean the return comes almost entirely from design decisions rather than from programmes.

What should I ask about the production estimate?

For it in kilowatt hours per year, with the data source named and location-specific irradiance for your address rather than a regional average, plus what shading analysis was done and what it assumed about tree growth over the system life.