Solar Panel & Battery Backup Installation in Nashville for Homes & Businesses
The Solar Roofers is the solar panel and battery backup side of The Metal Roofers, a family-owned roofing contractor in Nashville, Tennessee, working across Middle Tennessee since 2003. We design and install rooftop solar, home battery backup (Tesla Powerwall 3 and Enphase), ground-mounted arrays, commercial solar, and Level 2 EV chargers, and we check the roof before a single panel goes up. Every system is sized for your own NES, Middle Tennessee Electric, or local TVA power company usage, not for export credits, and it is built by one crew under one warranty for the roof and the solar.
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Honest and Nashville-specific
The Numbers Behind Solar in Nashville
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4.8
peak sun hours a day, on average, in Nashville
13,500 – 14,500
kWh a year from a 10 kW rooftop array
1,075 kWh
a month for an average Nashville home, about $134 at roughly 12 cents per kWh
230,000
NES customers without power at the peak of Winter Storm Fern, January 2026
There is no one-for-one net metering in TVA territory, and the 30% federal homeowner credit ended for systems installed after December 31, 2025. Solar here works when it is sized to the power you use, and batteries earn their keep the night the grid goes down.
The Solar Roofers · 2026 Price Guide
Price of Solar Panels and Battery Backup in Nashville
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Installed · Before incentives · Middle Tennessee
| System | Installed price | Typical project |
|---|---|---|
| Residential rooftop solar | $2.85 – $3.50 per watt | 8 – 14 kW · $22,800 – $49,000 · 11,000 – 19,000 kWh a year |
| Commercial solar | $2.20 – $3.00 per watt | 50 – 700+ kW · warehouses, farms, churches, schools |
| Tesla Powerwall 3 battery | About $15,400 | 13.5 kWh per unit · 10-year warranty |
| Enphase IQ Battery | $12,000 – $18,000 | 5 or 10 kWh units · 15-year warranty |
| Roof + solar in one project | Saves $2,000 – $5,000 | Shared permits, wiring, crew and scaffolding |
A watt is the rated size of the panels: an 8 kW system is 8,000 watts. These are installed planning ranges for Middle Tennessee, not quotes. The 30% federal tax credit for homeowner-owned systems ended for anything installed after December 31, 2025, so these are the numbers a cash or loan buyer actually pays. Your price is set after we measure the roof, check your electrical panel and read 12 months of your NES or Middle Tennessee Electric usage. See the full Nashville solar cost guide.
Example in Donelson
1-story ranch · 8 kW rooftop solar
$22,800 – $28,000
About 10,800 to 11,600 kWh a year, close to the full yearly usage of an average Nashville household.
Example in Green Hills
2-story · 12 kW solar + one Powerwall 3
$49,600 – $57,400
About 16,200 to 17,400 kWh a year, with the fridge, lights, Wi-Fi and furnace blower backed up when NES goes down.
Actual pricing moves with roof complexity, shade, panel upgrades, battery count and whether roof work is part of the project. Financing is available for qualified homeowners. Every estimate is confirmed after an on-site assessment.
✦ Reviewed by The Solar Roofers Technical Team
Written and reviewed by the team that designs and installs our solar and battery systems, backed by The Metal Roofers, roofing Middle Tennessee since 2003. Licensed and insured · BBB A+ · Tesla Powerwall Certified Installer · TVA EnergyRight Preferred Partners Network · Reviewed October 2026
Residential & Commercial · Solar + Battery Storage
Complete Solar Roof Energy Systems
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When you work with The Solar Roofers, you’re not talking to a national call center that’s never seen your street, you’re working with a Nashville-based team that lives here, pays the same power bills, and knows how our storms and trees punish roofs and overhead lines. We spend our weeks designing and installing solar and battery systems on real Nashville roofs: older asphalt and metal roofs in East Nashville and Inglewood, tall infill homes in 12 South and Belmont, larger brick homes in Green Hills and Belle Meade, and family houses in Bellevue, Donelson, Hermitage, Madison, and the surrounding counties.
Our crews handle solar and battery work from start to finish: roof and structure review, electrical inspection, system design, permitting, panel and racking install, battery and main panel work, utility coordination, and monitoring setup. We design around the roof you actually have, standing seam metal, classic panel metal, or shingle, not some idealized drawing. We also design around your electrical reality: older 100A services in East Nashville, panel upgrades in mid-century homes in Donelson, or already-updated service equipment in newer builds.
Solar Panel Installation in Nashville
Our solar panel installation work in Nashville starts with your roof, your bills, and your house, not a template. We measure your roof in person, check the structure and decking, look for shade from trees and other buildings, and pull a year of usage from NES, Middle Tennessee Electric, or your co-op so we know what we’re designing for. From there, we lay out a solar array that fits your rooflines and actual sun exposure, using quality modules and racking that have a track record in Middle Tennessee, not whatever happened to be on sale. On standing seam metal roofs we clamp to the seams wherever possible; on shingle and classic panel roofs we use flashed, engineered mounts that are anchored into solid structure and detailed to keep water out for the long term. Conduit runs, inverters, disconnects, and labeling are planned so they pass inspection cleanly and don’t make your house look like a science project. When we turn the system on, you leave with monitoring set up on your phone, a simple drawing of how the system is wired, and a clear explanation of what your new Nashville solar array is doing for you on a sunny day, a cloudy day, and at night.
Battery Backup Installation in Nashville
Our battery backup installations are designed around one simple question: what do you want working when the rest of the street is dark? We start by walking your Nashville home and building a list of essential loads, fridge and freezer, kitchen outlets, Wi-Fi and office, bedroom circuits, furnace blower or mini-split, well pump or garage door, and then we build a backup panel that feeds only those circuits. That backup panel ties into batteries such as Tesla Powerwall, Enphase, Franklin WH, or similar, and into your solar if you have it, with a transfer mechanism that isolates your system from the NES or co-op grid the instant an outage is detected. We size battery capacity and wiring so you know, ahead of time, roughly how long those circuits can run in a typical Nashville outage and how quickly your solar can recharge them during the day. All of the heavy electrical work, service upgrades if needed, panel work, disconnects, and code-required labeling, is handled by our licensed electricians and inspected through the normal Metro or county process. At the end, you have a battery system that powers the parts of the house you actually care about, comes on automatically when the grid fails, and shows its status in a monitoring app you can check from anywhere.
In Middle Tennessee, most of your electricity use is cooling the house from May through September, especially on larger homes in Green Hills, Brentwood, Franklin, Bellevue, and Mt. Juliet. A properly sized solar array can offset a significant portion of that annual usage, flattening the impact of rate increases and giving you some control over a bill that traditionally only goes up. We size systems based on your real NES or co-op history, not an arbitrary number, so you see meaningful kWh offset, not just a small token system that looks good in a photo.
Storms, ice, wrecked poles, and grid work all knock out power in Nashville neighborhoods every year. A battery system paired with solar lets you pick what stays on during an outage: fridge and freezer, kitchen outlets, Wi-Fi and office, bedroom circuits, gas furnace blower or mini-split, maybe a well pump or garage door. When the street is dark, your critical loads keep working quietly. When the sun comes back up, your solar can recharge the battery instead of you trying to track down fuel for a portable generator. We design these backup panels and circuits with you, so you know exactly what will happen when the grid drops.
A lot of the worst solar stories start with panels bolted onto a roof that was already near the end of its life, or racks fastened into weak decking or bad flashing. Because we come from the roofing side, we don’t install solar on a roof that isn’t ready for it. On metal roofs, especially standing seam, we use clamp systems that do not require new penetrations through the metal. On shingle roofs, we use proper flashing, lagging, and layout that respect valleys, ridges, and hips. If the roof is due soon, we fold that into the plan instead of ignoring it. For Nashville homes, where roofs see real weather and complicated framing, treating the roof and the solar as one assembly keeps you from paying twice or chasing leaks later.
Whether you’re on NES, Middle Tennessee Electric, Cumberland EMC, or another co-op, there are rules about how solar interconnects, how net metering or credits work, and how batteries can interact with the grid. We design each system around those realities so your system plays nicely with your utility and passes inspection the first time. That means right-size inverters, proper disconnects, compliant labeling, and realistic expectations about what solar and batteries will do, both on sunny days and during outages. You get straight answers, not promises that ignore how our utilities actually treat small-scale solar.
What to Expect When You Hire a Nashville Solar Installer
How to Install Solar Panels and Battery Backup in Nashville
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From roof assessment to turn-on · The Solar Roofers, Nashville, TN
1
Day 1
Free Solar & Roof Assessment
We measure the roof, check the decking and its remaining life, model shade from trees and neighbors, open the main electrical panel, and read 12 months of your NES, MTE or co-op usage. Solar gets recommended because the house calls for it, not because it is the easiest thing to sell.
2
Week 1
Design & Written Proposal
You get a layout, a panel and battery selection, expected yearly production, and a line-item proposal that separates solar, batteries, roof work and electrical upgrades. The system is sized for the power you actually use, not for export credits TVA territory does not pay.
3
Weeks 1 – 6
Permits & Interconnection
We pull the Metro Codes or county permit and file the interconnection application with NES, Middle Tennessee Electric or your local power company. Paperwork usually takes 2 to 6 weeks, longer than the install itself, and we handle all of it.
4
Before install
Roof Work, If the Roof Needs It
A 25-year array does not belong on a roof with five years left. If the roof is due, The Metal Roofers replaces it first, often with standing seam so the panels clamp to the seams with no penetrations. One project, one crew, one warranty.
5
Install week
Solar & Battery Installation
Rooftop solar usually takes 1 to 3 days on site. Add batteries and panel work and it is 2 to 4 days, with power off only in planned windows while we tie equipment in. Driveways, walks and landscaping are protected and cleaned daily.
6
Completion
Inspection, Turn-On & Walkthrough
After inspection and utility permission to operate, we turn the system on, set up monitoring on your phone, and walk you through what happens on a sunny day, a cloudy day and during an outage. You get a simple wiring drawing and a local number to call.
Typical timeline
Rooftop solar only
1 – 3 days
on site, after 2 to 6 weeks of permits and interconnection.
Typical timeline
Solar + battery backup
2 – 4 days
on site, including the backup panel and main panel work.
Typical timeline
New roof + solar together
2 – 3 weeks
roof first, then solar, under one project and one warranty.
Frequently Asked Questions
Nashville Solar and Battery Questions, Answered
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Straight answers from the crew that installs the systems · Updated for 2026
How much do solar panels and batteries cost in Nashville in 2026?
Residential solar in Nashville runs about $2.85 to $3.50 per watt installed. Most homes we design land between 8 and 14 kW, which is roughly $22,800 to $49,000 installed and about 11,000 to 19,000 kWh of power a year. A Tesla Powerwall 3 runs about $15,400 installed for 13.5 kWh of storage, and Enphase IQ Batteries run $12,000 to $18,000 depending on how many units you stack.
Those are planning ranges before incentives, not quotes. The 30% federal tax credit for homeowner-owned systems ended for anything installed after December 31, 2025, so the numbers above are what a cash or loan buyer actually pays. If your roof also needs replacing, doing the roof and the solar as one project usually saves $2,000 to $5,000 in shared permits, wiring and crew time.
How do NES and Middle Tennessee Electric treat solar and the extra power my panels make?
Tennessee is TVA territory, and there is no traditional one-for-one net metering here. TVA retired its old Green Power Providers buyback. NES runs NESolar Connect and NESolar Savings, limited programs that buy eligible excess solar under specific terms and capacity caps. Middle Tennessee Electric and the area co-ops allow interconnection under TVA rules, but none of them credit exported power at the full retail rate.
That is why we size every system for self-consumption: the power you make should mostly be the power you use, especially on summer afternoons when air conditioning runs hardest. A system designed around 12 months of your actual NES or MTE bills pays off. A system designed around export credits from another state's sales deck does not.
How long will a home battery run during a Nashville power outage?
One Powerwall 3 (13.5 kWh) typically carries the essentials, a refrigerator and freezer, lights, Wi-Fi, a few outlets and a gas furnace blower or small mini-split, for roughly 12 to 24 hours. With solar on the roof, the battery recharges during the day, so an outage can stretch for days without a generator. Two or more batteries extend runtime or cover more circuits.
This is not a theoretical worry in Nashville. During Winter Storm Fern in January 2026, NES outages peaked at about 230,000 customers, roughly half the system, and NES needed about 13 days to restore nearly everyone. We build a backup panel around the circuits you choose, so you know before the next ice storm exactly what stays on.
Is the 30% federal solar tax credit still available in 2026?
Not for homeowners who buy their system. The Residential Clean Energy Credit (Section 25D) ended for systems installed after December 31, 2025, under the One Big Beautiful Bill Act signed July 4, 2025. Leases and power purchase agreements owned by a third party may still carry the business credit through 2027, and that savings shows up in the payment rather than on your tax return.
Businesses, farms and churches still have the commercial 48E credit, but solar projects that began construction after July 4, 2026 must be placed in service by December 31, 2027 to qualify. Battery storage is not held to that solar deadline. Tax rules depend on your situation, so confirm with your tax professional before you sign anything that depends on a credit.
Can solar panels go on a metal roof without drilling holes?
Yes, on standing seam. Panels attach with clamps that grip the raised seams, so there are no new penetrations in the roof at all. A typical array on asphalt shingles needs 40 to 80 flashed, lagged mounts drilled into the deck, and every one of them has to stay sealed for 25 years.
The bigger question is roof life. Solar panels last 25 years or more, and taking an array off and putting it back for a re-roof typically costs $3,000 to $6,000. If your roof has only a few years left, we will tell you, and we will plan the roof first through The Metal Roofers so both last together.
Do solar panels work in Nashville with our clouds, storms and tree cover?
Yes. Nashville averages about 4.8 peak sun hours a day, enough for a 10 kW array to make roughly 13,500 to 14,500 kWh a year. Panels still produce under clouds, just at lower output, and our yearly estimates already account for Middle Tennessee weather.
Shade is the real limit, not clouds. A big oak over your best roof plane in East Nashville or Sylvan Park is a different conversation than an open lot in Bellevue or Mt. Juliet. We model shade on site and will tell you plainly when a roof is not a good fit, or when a ground mount or a detached garage roof makes more sense.
Why Nashville Chooses The Solar Roofers
A Roofing Family First, a Solar Installer Second
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Nashville-Specific Solar and Battery Education
Nashville Solar Resources & Guides: Cost, Batteries, Roofs and TVA Rules
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Reference library · skimmable guides for Middle Tennessee homeowners
Guide No. 1
What Solar Panels Cost in Nashville
Installed pricing per watt, typical system sizes, and what changes the number on NES and MTE homes.
Cost analysis
Guide No. 2
What Home Batteries Cost
Powerwall, Enphase and the rest, priced for real Nashville homes, with or without solar.
Battery backup
Guide No. 3
What Size Battery You Need
Survival mode versus comfort mode, and how many kWh it takes to ride out an outage.
Sizing
Guide No. 4
How Much Solar Cuts Your Bill
Self-consumption, NES buyback programs, and realistic offset under TVA rules.
Savings
Guide No. 5
Solar Incentives in Tennessee for 2026
What ended, what still exists for homes and businesses, and what to verify before you sign.
Incentives
Guide No. 6
Will Solar Damage My Roof?
Penetrations, flashing, roof warranties, and why standing seam is the best roof under panels.
Roofing
Guide No. 7
How Long Solar Panels Last Here
Degradation, heat, storms and how roof life and panel life should line up.
Lifespan
Guide No. 8
Does Solar Work in Nashville Weather?
Peak sun hours, cloud cover, summer heat and the real limiter: shade.
Climate
Guide No. 9
Questions to Ask Before You Sign
What to verify about the roof, the utility, warranties, equipment and who answers the phone later.
Hiring
Nashville and Middle Tennessee
Areas We Serve
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The Solar Roofers installs solar panels and battery backup across Nashville and more than 20 Middle Tennessee communities from our shop at 935 E Trinity Lane, the same shop The Metal Roofers has worked out of for years. Pick your town to see how solar works with your utility, your roofs and your weather.
Our Trusted Energy Technology Partners
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