Solar in Nashville: NES, TVA Green Flex and city permits

Local market

Solar in Nashville by the numbers

Metro population

2,010K

Typical cost per watt

$2.75

Paid lead cost

$95.00 to $170.00

Installer density

Moderate

Climate for solar

How much sun does Nashville get?

Nashville gets around 4.6 peak sun hours per day with 207 sunny days per year, moderate for solar. Summer thunderstorms reduce afternoon production. Humidity year-round; marine-grade stainless hardware extends system life. Tornado-prone weather in spring requires proper structural attachment.

Who delivers power here

Utilities serving Nashville

Nashville Electric Service (NES), TVA distributor, serves all of Davidson County, Middle Tennessee Electric serves parts of surrounding counties (Williamson, Rutherford, Wilson), Various rural electric cooperatives serve outlying counties.

For how exports are credited and what the statewide rules look like, see the Tennessee solar market guide.

Permits and inspection

Pulling a residential solar permit in Nashville

Metro Nashville Department of Codes and Building Safety typically runs residential solar permits in 2 to 5 weeks. SolarAPP+ is in pilot for select contractors. Surrounding Williamson, Rutherford and Wilson county jurisdictions run their own permits with 2 to 4 week typical timelines. NES interconnection post-install typically runs 4 to 8 weeks.

Running a solar company here

Running a solar company in Nashville

Running a solar company in Nashville means working under TVA Green Flex, where exports earn only partial retail. The best Nashville operators size systems to self-consumption, understand NES-specific interconnection paperwork vs surrounding TVA distributors, and sell on long-term rate protection rather than fast payback. Lead costs run $95 to $170 on Google search.

Other cities in Tennessee

Other Tennessee cities covered

• Solar in Memphis
• Solar in Knoxville
• Solar in Chattanooga

Questions people ask

Solar in Nashville: FAQ

Does NES have net metering?

Not retail-rate 1-for-1. Nashville Electric Service follows the TVA Green Flex programme that replaced Green Power Providers in 2019. Residential solar generation credits at approximately $0.03 to $0.05 per kWh for 20 years, below the retail rate of about $0.11.

How long does a solar permit take in Nashville?

Metro Nashville Department of Codes and Building Safety typically runs residential solar permits in 2 to 5 weeks. SolarAPP+ is in pilot. Surrounding counties run 2 to 4 weeks typically. NES interconnection post-install adds 4 to 8 weeks.

How much does solar cost in Nashville?

Nashville runs about $2.75 per watt installed for residential, meaning a 7 kW system typically costs around $19,300 gross. After the 30 percent federal tax credit, net cost is approximately $13,500. Tennessee has no state solar tax credit (no state income tax).

Is solar worth it in Nashville?

For Nashville homes with high electricity use and south-facing roofs sized to self-consumption, yes but with longer payback than retail-NEM states: typically 11 to 15 years with the federal tax credit. The Green Flex compensation is substantially less favourable than pre-2019 Green Power Providers.