US residential solar · 2026 data

Solar Cost for a Mobile Home

SAVE

$0+

Over 25 Years

$9,600 Cost after ITC
11.0 yrs Payback
4.6 kW System size

Most homeowners need:

  • 10–15 panels
  • 4.6 kW system
  • $9,600 after tax credits
  • 11.0 year payback
✓ Updated monthly ✓ NREL data ✓ Reviewed by solar experts ✓ IRS tax credit included
· 8 min read ·By ·Reviewed by Green Energy Calculators Editorial Team

Without solar vs with solar

25-year cost comparison for a $300/month US electric bill.

Without solar

25-year utility cost

$36,800

Rates rise ~3% per year (EIA avg.)

With solar

Net system cost

$9,600

After 30% federal ITC

Your savings

Difference

+$27,100

Estimated lifetime advantage

500,000+
calculations completed
25,000+
users monthly

Trusted by US homeowners · Data sourced from

NREL EIA Energy.gov DSIRE IRS / SEIA
Author Mark Sullivan
Reviewed by Green Energy Calculators Editorial Team
Last updated
Sizing formula kW = Annual kWh ÷ (Peak Sun Hours × 365 × 0.82)

Disclosure: This article contains affiliate links to Shop Solar Kits. If you purchase through our links, we may earn a commission at no extra cost to you. This does not affect our recommendations.

Solar panels for a mobile home cost between $3,000 and $12,000 in 2026, with most single-wide owners spending around $5,500 and double-wide owners closer to $8,500 after the federal Investment Tax Credit (ITC). That’s well below the $25,000–$35,000 typical for a site-built house — partly because mobile homes use less electricity, and partly because smaller systems need fewer panels and less inverter capacity. Three factors drive most of the price variation: whether your home is grid-tied or off-grid, the condition and load capacity of your roof structure, and which state you live in, since utility rates and local incentives shift the payback math significantly.

How Much Do Solar Panels Cost for a Mobile Home in 2026?

The average mobile home uses 750–1,100 kWh per month — about 30% less than a standard house, according to the U.S. Energy Information Administration (EIA). That lower consumption means you typically need a 3 kW to 6 kW system rather than the 8–12 kW arrays sized for site-built homes, which cuts your upfront cost substantially.

In 2026, installed solar costs roughly $2.50–$3.80 per watt before incentives. The 30% ITC, extended through 2032 by the Inflation Reduction Act, then shaves nearly a third off that figure for eligible homeowners. Here’s what the math looks like across common system sizes:

Mobile Home Solar Panel Cost by System Size (2026)

System SizeGross CostAfter 30% ITCBest For
2 kW$5,000–$7,600$3,500–$5,320Small single-wide, low usage
3 kW$7,500–$11,400$5,250–$7,980Average single-wide
4 kW$10,000–$15,200$7,000–$10,640Large single-wide / small double-wide
6 kW$15,000–$22,800$10,500–$15,960Double-wide with central AC

The IRS requires the home to be your primary residence to claim the credit on Form 5695. The credit is nonrefundable but any unused portion carries forward to future tax years. Use our solar tax credit calculator to estimate your exact credit based on system cost and your annual tax liability.

Horizontal bar chart showing mobile home solar system costs after 30 percent ITC for 2 through 6 kW systems
Mobile Home Solar Cost After 30% ITC (2026). A 3 kW system — right for most single-wides — costs $5,250–$7,980 after the federal credit. Source: SEIA installer data, IRS ITC guidance 2026.

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Solar vs utility company · 25-year comparison

Total cost of staying on the grid vs owning solar for a $300/month bill (national average assumptions).

Total utility payments

$36,800

Total solar cost (after ITC)

$9,600

Net savings

+$27,100

Avg. monthly difference

+$73/mo

See my savings →

Mobile Home Solar Installation Costs: What’s Different From a Standard Roof

Installing solar on a manufactured or mobile home differs from a standard rooftop job, and those differences typically add $500–$2,500 to your quote. Understanding them upfront prevents surprise change orders.

Roof load capacity. Most mobile home roofs are engineered to support the structure’s own weight plus local snow loads — not the added 2–4 lbs per square foot of solar panels. A structural engineer review costs $300–$600 and may be required by your installer or permitting office. Skipping this step creates both safety and warranty risk.

Roof material. Mobile homes commonly have metal roofs, rubber membrane (TPO or EPDM), or thin shingles. Each requires different mounting hardware. Metal roofs often use non-penetrating clamps that eliminate penetration risk; rubber roofs need adhesive ballast systems. Specialty mounts run 20–40% more than standard asphalt-shingle hardware, which raises the installed cost per watt.

Age and wiring. Homes built before the mid-1990s may have aluminum branch circuit wiring or undersized electrical panels that need upgrading before a solar inverter can safely connect. A panel upgrade costs $1,500–$3,500 depending on amperage and local labor rates — budget for it if your home predates 1995.

Park rules. If your home sits in a mobile home park, check your lease before requesting quotes. Many parks prohibit rooftop modifications or require written landlord approval. Ground-mounted systems are a viable alternative when roof installation isn’t permitted. Homeowners in Florida and Texas — two states with large manufactured home populations — often find ground mounts easier to permit on rural parcels due to flat terrain and fewer local restrictions.

People often ask whether mobile home solar requires special permits. The answer is yes: most jurisdictions require both a building permit and an electrical permit, which your installer should pull. Confirm this before signing a contract, since unpermitted systems can create title problems at resale.

How Long Until Solar Panels Pay Off on a Mobile Home?

For most mobile home owners in 2026, the payback period runs 7–12 years — comparable to or slightly faster than site-built homes — because the smaller system cost offsets the lower electricity bill. Your specific payback hinges on three numbers: what you currently pay per kWh, how many peak sun hours your location receives annually, and whether your utility offers net metering at retail rates.

NREL’s PVWatts data shows that a 3 kW system in Phoenix produces about 5,400 kWh per year, while the same system in Seattle produces roughly 3,300 kWh. At the national average electricity rate of $0.17/kWh (EIA, 2025), that’s $918/year in Arizona versus $561/year in Washington — a $357 annual difference that compounds over a 25-year panel lifespan. Panel degradation averages 0.5% per year per NREL benchmarks, meaning your Year 25 output is about 88% of Year 1. For more on this topic, see our guide to Solar Panel Cost for a 3,500 sq ft Home in 2026. For more on this topic, see our guide to Solar Panel Cost for a 4,500 sq ft Home in 2026.

Net metering accelerates payback significantly. States like California and New Mexico require utilities to credit excess solar generation at retail rates, effectively turning your meter into a two-way billing system. States without strong net metering laws — or those crediting you at wholesale rates — extend your payback by two to four years. Check your state’s current net metering rules at the DSIRE incentive database before finalizing your budget.

Is solar worth it without net metering? Often still yes, as long as your self-consumption rate is high. A mobile home where occupants are home during daylight hours — retired residents, remote workers — will consume most of their solar output directly, reducing dependence on net metering credits.

Line chart showing 25-year cumulative cash flow for a 3 kW mobile home solar system breaking even around year 8
25-Year Cash Flow: 3 kW Mobile Home Solar After ITC. Break-even falls around Year 8 at $0.17/kWh with net metering; total 25-year gain reaches approximately $13,750. Source: NREL PVWatts, EIA average electricity rate 2025.

Use our solar payback calculator to model your specific electricity rate, local sun hours, and financing scenario.

Off-Grid vs. Grid-Tied Solar for a Mobile Home: Which Costs Less?

Many mobile home owners weigh off-grid solar — either because they live in a rural area without reliable grid access, or because they want full energy independence. The upfront cost is higher, but there’s no monthly utility bill and no net metering dependence to worry about.

Grid-tied system (3 kW): $5,250–$7,980 after ITC. Requires a utility connection and net metering to maximize savings. No battery backup unless added separately. Works well in areas with reliable grid power and strong net metering policies.

Off-grid system (3 kW + battery bank): $12,000–$22,000 after ITC, depending on battery capacity. A 10 kWh lithium battery bank — enough for one to two days of average mobile home usage — adds $6,000–$10,000 to the base system. You’ll also need a charge controller, an off-grid inverter, and a generator for extended cloudy periods. Depth of discharge matters here: lithium iron phosphate (LFP) batteries support 80–90% usable capacity versus 50% for older lead-acid banks.

Hybrid system: Grid-tied with battery backup. Costs $15,000–$25,000 after ITC but delivers grid savings plus outage protection. Popular in states with frequent storm outages like Louisiana and North Carolina.

For owners who want a plug-and-play path to off-grid power, pre-built off-grid solar kits from Shop Solar Kits range from 200W portable setups to complete 10 kW cabin systems — use code WAYSENG101 at checkout for an additional discount. These kits bundle panels, inverter, charge controller, and wiring, eliminating component compatibility guesswork and often reducing sourcing costs versus buying parts separately.

Which is cheaper — off-grid or grid-tied? Grid-tied wins on upfront cost by a wide margin ($6,000–$14,000 less), but off-grid eliminates ongoing utility bills entirely. In areas where electricity costs $0.20/kWh or more, off-grid systems in Hawaii and parts of the Northeast can match or beat grid-tied payback timelines within 10–14 years.

How to Get the Best Solar Price for a Manufactured Home

Solar quotes vary by 20–40% for the same system, so shopping correctly matters more than almost any other decision in this process. Here’s how mobile home owners can reduce their installed cost without sacrificing quality.

Get at least three quotes. SEIA data consistently shows that homeowners who collect three or more competing bids save an average of $2,000–$5,000 on their final installed cost. Make sure each quote specifies the same system size in kW and the same panel wattage so you’re comparing like for like.

Benchmark on price per watt. In 2026, a fair all-in price for a quality grid-tied installation is $2.60–$3.50 per watt before incentives. Any quote above $4.00/watt deserves a competing bid or a line-item explanation.

Stack state incentives on top of the ITC. Many states layer additional credits on top of the 30% federal credit. Arizona offers a 25% state tax credit capped at $1,000. New York provides a 25% credit up to $5,000. Several utilities also pay cash rebates of $0.10–$0.50 per watt. The DSIRE database lists every active state incentive by zip code and is updated regularly.

Confirm installer experience with manufactured homes. Ask specifically how many mobile or manufactured home installations the company has completed in the past 12 months. An installer unfamiliar with HUD-code roof structures, TPO membrane mounting, or mobile home electrical panels is a genuine liability.

Avoid long-term solar leases if you may relocate. A lease tied to the property creates complications at sale or if you need to move the home. A loan or cash purchase gives you the full ITC benefit and keeps the asset transferable. Why are solar quotes so different? Installer overhead, panel brand, warranty terms, and permit fees all vary — which is why comparing the per-watt price strips out the noise.

Use our solar savings calculator to verify that the quoted system size matches your actual usage and that the payback timeline the installer promises is realistic for your location.

Frequently asked questions

Direct answers for US homeowners — sized for a 1,200 sq ft home.

A properly sized 3 kW system saves most mobile home owners $60–$120 per month on electricity, depending on local rates and peak sun hours. At the national average of $0.17/kWh and 5 peak sun hours per day, a 3 kW system produces roughly 375 kWh per month — enough to offset 40–60% of the typical mobile home electricity bill. Annual savings run $720–$1,440 before accounting for rate increases.

Popular utility companies

Solar rules and net metering vary by utility — not just by state.

Methodology & data sources

Calculation method: System size uses NREL PVWatts derate factor (0.82). Costs based on SEIA 2026 installed cost ($2.75–$3.20/W). Payback uses net cost after 30% federal ITC (IRC Section 25D). Savings assume full-retail net metering unless noted.

Official sources: EIA state electricity rates · NREL PVWatts · Energy.gov ITC guide · DSIRE incentives · SEIA market data · IRS Publication 5695.

All figures are estimates for educational purposes — not tax, legal, or investment advice. Consult a licensed installer and CPA for your situation.

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