TN · Solar

Solar quotes in Chattanooga, TN.

One real quote from a vetted local Chattanooga 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 Chattanooga 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 Chattanooga

Chattanooga is served by EPB, a municipal utility with an unusually instrumented grid, and that raises a question worth asking directly: what does your utility actually offer solar customers beyond the TVA framework. Local power companies in the TVA system add their own charges, run their own interconnection processes and sometimes run their own programmes, so the answer is specific to Chattanooga rather than general to Tennessee.

The local layer is where the variation lives

TVA sets the wholesale rate and the Dispersed Power Production framework under which exports are purchased at avoided cost. Everything below that is your local power company.

Each of the more than 150 local power companies in the TVA system adds its own distribution charges, which is why actual residential rates run a cent or more either side of the roughly 13 cent Tennessee average.

They also run their own interconnection processes, set their own application fees and timelines, and may offer their own programmes on top of what TVA provides.

So the useful questions are local ones. Ask EPB directly what it offers solar customers, what the interconnection process involves, what it costs, and how long it takes.

Storage, outages and honest expectations

Solar alone does not keep a house powered during an outage. A standard grid-tied inverter disconnects when the grid goes down, for the safety of line workers, which surprises more homeowners than any other fact about solar.

Backup requires a battery plus the right inverter and switching arrangement, specified in the quote as equipment rather than implied. Ask which circuits would be backed up and for how long under a realistic load.

There is also a modest economic case for storage in Tennessee, because a battery converts electricity that would have been exported at avoided cost into electricity consumed at the retail rate. That gap is real.

But with retail electricity around 13 cents per kWh, the absolute value of that arbitrage is smaller here than in a high-rate state. Ask for the system modelled with and without storage so the incremental value is a number rather than an impression.

The free version of what a battery does

Before buying storage, it is worth knowing that load shifting achieves part of the same thing at no cost. Any flexible load moved into daylight converts an avoided-cost export into a retail-rate offset.

Running the dishwasher, washing machine and dryer during the day rather than in the evening is the simplest version. So is running a pool pump on a midday schedule.

Pre-cooling the house in the afternoon on a hot Tennessee day, so air conditioning works harder while the sun is up and less after sunset, shifts a much larger load and costs nothing.

Charging an electric vehicle during the day rather than overnight is the single biggest shift available to a household that has one. Ask your installer to show what the projection looks like with and without these changes.

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 Chattanooga 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 retail value on self-consumed generation, avoided cost on exports under Dispersed Power Production, whatever your local power company offers on top, and the fixed charges it levies regardless.

Ask EPB directly what applies to you, then ask your installer to rebuild the projection from those answers rather than from a statewide template.

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

Does my local utility offer anything beyond TVA?

It may. Local power companies in the TVA system set their own distribution charges, run their own interconnection processes and sometimes run their own programmes, so ask EPB directly what it offers solar customers and what the process involves.

Will my solar work during a power outage?

Not on its own. A standard grid-tied inverter disconnects when the grid goes down, for line worker safety. Backup requires a battery plus the right inverter and switching arrangement, specified as equipment with a list of the circuits covered.

Does a battery save money in Tennessee?

Modestly. It converts electricity that would have been exported at avoided cost into electricity consumed at the retail rate, which is a real gap. But with retail power around 13 cents per kWh the absolute value is smaller than in a high-rate state.

What can I do without buying a battery?

Shift flexible loads into daylight. Run the dishwasher, laundry and pool pump during the day, pre-cool the house in the afternoon so air conditioning runs while the sun is up, and charge an electric vehicle during the day rather than overnight.