How much does a solar project cost in Tennessee?

Tennessee is at the national base for renovation pricing. A typical mid-range solar project of medium size in Tennessee runs about $24,310–$38,610, including labor, materials, permits, and a 10% contingency.

Are solar costs higher in Tennessee than the national average?

Tennessee sits at the national baseline. Costs are close to the U.S. average, though urban metros may run 5–10% higher than rural counties within the state.

Do I need a permit for a solar project in Tennessee?

Most Tennessee municipalities require a permit for any work involving plumbing, electrical, structural changes, or roof tear-offs. Cosmetic-only updates (paint, fixtures, hardware) typically don't need one. Contact your local building department to confirm — fees usually run $150–$600 in Tennessee.

How long does a solar project take in Tennessee?

Most residential solar installs take 1–3 days on-site once permits and utility approval clear (typically 6–12 weeks total project timeline). Tennessee permit-review timelines and contractor availability can add 1–2 weeks during peak season (spring and early summer). Booking in late fall or winter often shortens the schedule.

← Solar cost calculatorTennessee: At national base

Tennessee cost guide

Solar Panel Install cost in Tennessee

Tennessee runs ~7% below national — Nashville is pulling the state average up fast. Below are 2026 solar cost ranges adjusted for Tennessee, plus a state-specific estimator and FAQ.

Get a personalized Tennessee estimate

Why is Tennessee 7% cheaper than the U.S. average?

Tennessee renovation costs run about 7% below national. Here's the structural reason — lower trade-labor rates, simpler permitting, and minimal code overlays.

Read the Tennessee cost-driver breakdown

Solar cost in Tennessee vs. the U.S. average (2026)

Mid-range total cost (small / medium / large project sizes), state-adjusted vs. national baseline.

Small (4–6 kW)

≈ U.S. avg

~$100/mo electric bill

$14,300–$24,310

U.S. avg: $14,300–$24,310

Medium (8–10 kW)

≈ U.S. avg

~$150–$250/mo electric bill

$24,310–$38,610

U.S. avg: $24,310–$38,610

Large (12–15 kW)

≈ U.S. avg

~$300+/mo electric bill

$35,750–$57,200

U.S. avg: $35,750–$57,200

Cost ranges in Tennessee

Total project ranges (low–high) by size and quality tier. Includes labor, materials, permits, and 10% contingency.

Size	Budget	Mid-range	High-end
Small (4–6 kW) ~$100/mo electric bill	$11,000 – $18,700	$14,300 – $24,310	$24,200 – $41,140
Medium (8–10 kW) ~$150–$250/mo electric bill	$18,700 – $29,700	$24,310 – $38,610	$41,140 – $65,340
Large (12–15 kW) ~$300+/mo electric bill	$27,500 – $44,000	$35,750 – $57,200	$60,500 – $96,800

Ranges scope: Solar panels only. For other scopes (fixtures, layout changes, etc.) use the full solar calculator.

All ranges are built from publicly available contractor data and industry benchmarks, then adjusted for Tennessee using labor and material indices. Updated twice yearly. Always get 3+ written bids before committing.

What drives solar pricing in Tennessee

The three structural factors that make Tennessee cheaper than the national average for renovation projects in 2026.

Nashville in-migration premium

Nashville-metro trade rates have climbed 25–35% since 2020 — now $55–$78/hr. Knoxville, Chattanooga, and Memphis still run 10–15% under Nashville.

Simple permit structure

Tennessee permits average $200–$450 with fast 1–3 week reviews. Limited code amendments.

Memphis logistics hub

Memphis is one of the largest U.S. air-cargo and distribution hubs. Material lead times consistently match or beat national averages.

Full Tennessee cost-driver breakdown

Tennessee vs. neighboring states (solar cost)

Relative cost-index versus each bordering state. Useful if you're sourcing materials, vetting cross-border contractors, or weighing where to take on the project.

Virginia

Virginia +14%

View solar cost in Virginia →

Mississippi

Tennessee +11%

View solar cost in Mississippi →

Arkansas

Tennessee +9%

View solar cost in Arkansas →

Compare all 11 project types across Tennessee metrosSide-by-side 2026 pricing for kitchen, bathroom, roofing, solar, windows, and 6 more.Open metro hub