The Solar Roofers · 2026 Incentive Update
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Short version: homeowners lost the federal credit on January 1, 2026. Businesses, farms, churches and the owners of leased systems still have Section 48E, on a clock.
| Incentive | Who it is for | Status in 2026 |
|---|---|---|
| Section 25D residential credit (30%) | Homeowners who own their system | Ended for systems installed after December 31, 2025, including home batteries |
| Section 48E credit, solar | Businesses, farms, churches and other commercial owners | Available. Solar that began construction after July 4, 2026 must be placed in service by December 31, 2027 |
| Section 48E credit, battery storage | Business-owned and third-party-owned batteries | Available, and not subject to the 2027 solar deadline |
| Leased and other third-party-owned systems | Homeowners and businesses who do not own the equipment | The owner may claim 48E on systems placed in service by the end of 2027 |
| Business depreciation | Business-owned systems | Available. The 2025 law changed the schedules, so your CPA confirms them |
| USDA REAP grants | Farms and rural small businesses | Sharply restricted for solar; the new limits are being challenged in court |
| NESolar Savings and NESolar Connect | NES customers with solar | Limited buyback programs with specific terms and caps; no 1-for-1 net metering |
| TDEC Green Energy Production Facility certification | Businesses that get a facility certified by the state | Can apply for authority to make tax-exempt purchases of equipment used to produce electricity |
General information, not tax advice. Confirm every credit, deadline and schedule with your tax professional before you sign.

Straight Answer First
Here is the straight answer for 2026. Tennessee homeowners can no longer claim the 30% federal solar tax credit: the Section 25D credit ended for systems installed after December 31, 2025, and that includes home batteries. Businesses, farms, churches and the owners of leased systems can still use the Section 48E credit, but solar projects that began construction after July 4, 2026 must be placed in service by December 31, 2027, and battery storage is not held to that deadline. USDA REAP grants are sharply restricted for solar, and Tennessee has no traditional net metering, so NES and the other TVA power companies buy excess solar only through limited programs. The Solar Roofers, a family-owned solar and roofing company in Nashville, prices every system on what it saves first, then works with your CPA on whatever credits apply. Confirm every credit and deadline with a tax professional.
Federal and Farm Incentives





Home Solar Math in 2026
Without the 30% homeowner credit, home solar in Nashville has to stand on its own savings. A typical 8 to 14 kW home system runs $22,800 – $49,000 installed and makes about 11,000 to 19,000 kWh a year, against the average Nashville household's use of about 1,075 kWh a month.
Homeowners pay for solar with cash, a solar or home-improvement loan, or a lease where a company owns the equipment. Our solar financing page walks through how each one works in 2026.
Shop a solar loan like any other loan: compare the rate, the term, any dealer fee folded into the price, and whether it is secured by your home.
Those totals assume rates never rise, so treat them as the floor. At the Nashville average of about $134 a month, that is roughly $16,080 over 10 years and $40,200 over 25 years, which is the money a solar system competes with.
Who Gets What in 2026
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If you own a home in Davidson, Williamson or Rutherford County and buy a solar or battery system in 2026, there is no federal tax credit to claim. The Section 25D credit ended for systems installed after December 31, 2025, and it covered home batteries too. Here is what still matters for a homeowner:
When we design a system for a home in Donelson, Hermitage or Madison, the proposal shows the installed price, the expected production for Nashville's roughly 4.8 peak sun hours a day, and the bill offset against your own 12 months of usage. No phantom credits.
Offices in Green Hills, shops in 12 South, warehouses in La Vergne and farms outside Gallatin can still use federal incentives in 2026. For a business, the stack usually looks like this:
All of that sits on top of your real operating costs: demand charges, peak windows and rate changes from NES, Middle Tennessee Electric or your local TVA power company. For a Franklin church, a Brentwood medical office or a Lebanon light-industrial building, we treat roof, solar and incentives as one capital project that your CPA, banker and board can all follow.
Outside Metro Nashville, a lot of properties are part home, part farm and part business. A cattle operation in Wilson County, a greenhouse in Robertson County or a food producer outside Murfreesboro used to plan solar around a USDA REAP grant. In 2026 that grant is sharply restricted for solar and tied up in court.
What still works for a farm project:
We design the roof and the solar with clean, auditable scopes of work, so your banker, your CPA and any grant reviewer all work from one set of drawings and numbers.
Nashville is TVA territory. NES, Middle Tennessee Electric and the surrounding co-ops all operate under TVA rules, and that matters because:
So we size systems for self-consumption and outage protection, not for export. Every proposal we build for an East Nashville bungalow, a Belle Meade estate or a Bellevue ranch is modeled on current TVA and NES rules and your real bills, not on net metering from another state.
The Solar Roofers handles roofing and solar under one roof, so we design the roof and the solar together. That matters for your money:
For a homeowner in Donelson or Franklin, that can mean a new standing seam metal roof, where panels clamp to the seams with no roof penetrations, plus a right-sized array and a battery. For a commercial building in Antioch or a campus in Hendersonville, it can mean phasing roof, solar and electrical work so the solar is in service before the end of 2027.
You should not have to research tax law on your own, and you should not take tax advice from a sales script. Here is how we handle it:
During design we show payback on realistic Nashville production, about 1,350 to 1,450 kWh per kW of panels a year, against your own bills. Then we hand you and your CPA the paperwork.
48E, REAP and Elective Pay
Start with the owner, equipment and dates, not a promised percentage. A commercial quote should separate the installed price from any tax benefit. Use this screening checklist with your tax adviser before a contract, then update it before filing. Sources checked October 29, 2026. General education, not a determination of eligibility.
Keep one version-controlled folder containing ownership documents, cost allocations, invoices and proof of payment, equipment and supplier records, construction-start evidence, permits, commissioning records, capacity calculations, labor-compliance records where applicable, and each proposed bonus determination. Ask the CPA which facts establish placed-in-service status; an invoice date is not enough evidence by itself.
Use three budget columns: contract price before incentives, tax benefits approved by the adviser, and benefits still unverified. Put unverified benefits at zero in the financing stress test. See the financing comparison worksheet and nonprofit elective-pay checklist.
Do not subtract an assumed REAP grant from a solar contract. As checked October 29, 2026, USDA says it is not accepting REAP grant applications; guaranteed-loan applications may be submitted. A loan guarantee supports qualifying lending and is not a grant paid to the owner. Start with the Tennessee program official and the current application notice. USDA application status and contacts.
The October 1 final rule, effective October 16, changes the grant pathway to completed, performance-documented projects. It requires at least 75% cost sharing, with renewable-energy grant requests capped at $500,000. Project-period completion generally must fall 12–24 months before application; the first window permits 12–36 months. Applicants provide pre-installation and post-installation energy records covering 12 months. Ground-mounted solar on cropland is ineligible, and component-origin restrictions also apply. These are screening points, not the complete eligibility test. Final rule, §§4280.121–125 and 4280.131.
Budget rule: an eligible project is not a promised award. The working cash plan should stand without a grant; any later award needs its own approval and accounting. Keep the 48E tax-credit analysis separate from the USDA application.
Elective pay can make an eligible clean-energy credit refundable, but it is not an installer rebate at signing. The organization must qualify, the project must earn an eligible credit, and the entity must complete registration and filing. Certain projects face domestic-content-related payment reductions unless an exception applies. Check the IRS elective-pay overview. Sources checked October 29, 2026; obtain project-specific tax advice.
| Step | Owner to assign | Decision or evidence |
|---|---|---|
| Entity and property ownership | Board and tax adviser | Identify the entity claiming the credit and who will own the equipment. A third-party-owned lease changes this analysis. |
| Credit eligibility | Tax adviser, with contractor records | Complete the 48E checklist for timing, size, labor, sourcing and proposed bonuses. |
| Cash available before reimbursement | Treasurer and lender | Document construction cash, reserves, loan terms and a delay/no-payment contingency. |
| Project records | Facilities lead | Collect cost breakdowns, contracts, invoices, payment evidence, commissioning and ownership records. |
| Pre-filing and return | Authorized finance representative and preparer | Complete IRS registration and reconcile registration numbers, credit forms and the annual return. |
| After filing | Treasurer | Retain filing acceptance and correspondence; reconcile any payment to the books and loan plan. |
The IRS requires ownership of the credit property for this type of claim. Its process includes pre-filing registration and a valid election on a timely original return, with applicable extensions. An entity that normally files no annual income-tax return generally uses Form 990-T with the required credit forms and Form 3800. Payment generally follows processing; plan for uncertainty rather than treating a projected date as cash in hand. IRS elective-pay FAQ, Q11, Q19–25 and Q28.
Suppose a board approves a hypothetical $100,000 installed project. If its adviser independently confirms a $30,000 eligible payment, the organization still needs a plan to cover the full $100,000 construction obligation before that payment arrives. The arithmetic is $100,000 minus $30,000 equals $70,000 after payment, before financing and operating costs. If the payment is delayed, reduced or unavailable, the construction obligation does not shrink. This example assumes the credit amount solely to show timing; it does not establish a 30% entitlement.
For financing comparison, use cash versus financed total-cost math. For utility economics, use the Tennessee solar billing guide. Neither a utility estimate nor a contractor proposal substitutes for tax approval.
Commercial and Farm Projects
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With REAP grants restricted and the 48E clock running, the order of the work matters more than the paperwork.
We start with what you are building: a shop in La Vergne adding rooftop solar, a cattle farm in Wilson County putting in a ground mount, or a food producer outside Gallatin tying solar into cold storage. Location, utility, ownership and load profile decide which incentives are realistic. For commercial solar in 2026 the first question is simple: can this system be placed in service by December 31, 2027? If the answer is no, we talk about battery storage, phasing or a different plan before you spend money on design.
We pull 12 to 24 months of power bills and break out how your operation uses power by season. Then we design the roof and solar system, plus batteries if needed, around that usage: array size, inverter layout, mounting, structure and single-line diagrams. A greenhouse outside Murfreesboro means fans, pumps and winter heat. A cattle operation in Robertson or Wilson County means well pumps, barns and cold storage. A warehouse in Mt. Juliet means lighting, dock equipment and HVAC. You get production estimates for our climate and cost breakdowns that separate roof, solar, batteries and electrical, so your CPA, your lender and any grant reviewer read the same numbers.
Your CPA maps the credit and the depreciation. Your lender lines up the financing. We hold the schedule. Permits and utility interconnection take weeks on a home and can take longer on a large commercial system, so we start that paperwork early and phase the install around planting and harvest or production shutdowns. The goal is a system that is built, inspected and turned on inside the 48E window, not one that is approved on paper and late in the field.
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Before You Sign
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Six checks that keep a 2024 sales pitch out of a 2026 tax year.
Check 1
Owners claim credits. A homeowner who buys a system in 2026 has no federal credit to claim, and with a lease the leasing company claims it. Get ownership in writing.
Check 2
Any 2026 proposal that subtracts 30% from a homeowner's price is wrong. A business proposal should name Section 48E and the credit rate it assumes.
Check 3
Commercial solar that began construction after July 4, 2026 must be placed in service by December 31, 2027. Get the schedule, including utility interconnection, in writing.
Check 4
New foreign-entity sourcing rules apply to many 48E projects, and USDA bars panels made by foreign adversaries in REAP projects. Ask for the make and origin of the panels, inverters and batteries.
Check 5
Removing and reinstalling an array for a later re-roof typically costs $3,000 – $6,000. If the roof has only a few years left, plan the roof first.
Check 6
There is no 1-for-1 net metering here and NES buyback runs through limited programs, so tie any savings figure to your real 12 months of bills. Ask your county assessor how the system will be treated for property tax.
Tax Credit Questions
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No. The Section 25D residential clean energy credit ended for systems installed after December 31, 2025, under the One Big Beautiful Bill Act signed July 4, 2025, and that includes home batteries. With a lease, the company that owns the system may still claim the business credit, so ask how much of it is reflected in your price.
Yes, through the Section 48E credit, but on a deadline. Solar projects that began construction after July 4, 2026 must be placed in service by December 31, 2027, while battery storage is not subject to that solar deadline. Confirm your eligibility, credit rate and dates with a tax professional.
Not in a way you should count on. USDA restricted solar in REAP starting in 2025, including a 50 kW cap on ground-mounted systems and limits on cropland projects and foreign-made panels, and farm and solar groups sued over the changes in September 2026. We do not promise REAP funding; if a grant comes through, treat it as a bonus.
Only through limited programs. NESolar Savings buys excess energy from systems under 250 kW with an average monthly surplus of at least 50 kWh, and NESolar Connect buys all the output of systems larger than 200 kW, both under specific terms and caps. There is no traditional 1-for-1 net metering in TVA territory, so we size systems for self-consumption.
Check who owns the system, which credit the price assumes, and the date the system will be placed in service. Get the cost breakdown in writing for your CPA, and get any promise about credits, grants or buyback rates written into the contract. If anyone still quotes a 30% homeowner credit in 2026, walk away.
✦ Reviewed by The Solar Roofers Technical Team
Written and reviewed by the team that designs and installs our solar and battery systems, roofing Middle Tennessee since 2003. Tax and incentive details are general information current as of October 2026, not tax advice. Licensed and insured · BBB A+ · Tesla Powerwall Certified Installer · TVA EnergyRight Preferred Partners Network · Reviewed October 2026