Can you put solar on a mobile home? Short answer: yes, and payback's often faster than on a site-built house. Approximately 22.4 million Americans live in manufactured housing (U.S. Census Bureau, 2021), paying some of the highest energy costs per square foot of any housing type. A double-wide's typical 4-5 kW system runs $14,000-$18,000 gross. Note that the 30% federal Section 25D credit ended December 31, 2025, so a system bought or financed by an owner in 2026 gets no federal offset, check DSIRE for state programs that still stack. Honestly, when I run the math, ground-mount almost always edges out roof-mount. My advice? Pull your HUD Data Plate first, then quote both options before you decide. This guide covers the whole job: HUD-code structure, mounting hardware, sizing, inverters, permitting, and what it all costs.
TL;DR: Solar works on mobile and manufactured homes, and payback is often faster than site-built houses given how high their energy costs run per square foot. A double-wide's 4-5 kW system costs $14,000-$18,000 gross in 2026 (no federal credit applies). Ground-mount usually beats roof-mount on value once you factor in structural review costs, check your HUD Data Plate first.
What Makes Manufactured Home Solar Different from Site-Built?
A manufactured home is built to the HUD Code (24 CFR Part 3280) rather than local building codes, and that shows up in three places:
1. Roof structure: HUD-code roofs meet minimum load standards that leave little margin for a 2.5 - 4 psf array. Many single-wide roofs are light-gauge metal with limited reinforcement, so an engineer has to confirm the roof before any rooftop mount. Don't skip this step.
2. Foundation type: The home sits on a permanent (real property) foundation or a temporary chassis (chattel). That drives financing, since most mortgage-based loans require real-property status, but it doesn't change the technical install.
3. Roof type: Standing-seam metal, low-slope modified bitumen, and composition shingle each need different hardware: clamp mounts (no penetration) for metal seams, lag-bolt flashing for shingles, ballasted or tilted frames for low-slope.
Does Roof Strength Affect the Cost of Mobile Home Solar?
Yes, and it's the line item with the widest cost swing. A roof-mounted system on a HUD Windzone I single-wide often needs a $200 - $500 structural review before quoting and may still need reinforcement, while a Windzone II or III double-wide is usually approved without extra work. Ground-mount skips the assessment and adds $1,000 - $2,000. Plan for one of three scenarios:
- Strong roof (Windzone II/III double-wide): $0 added, panels go on the roof.
- Borderline roof (single-wide, HUD minimum): $200 - $500 review, maybe $500 - $1,500 in reinforcement, or pivot to ground-mount.
- Ground-mount default: $1,000 - $2,000 above the roof baseline, no review.
How Does Rooftop Installation Work on a Manufactured Home?
Rooftop solar on a manufactured home is feasible when all of these hold:
- The roof is structurally sound, with no soft spots, damaged rafters, or existing leaks
- The roof material is standing-seam metal, composition shingle, or newer asphalt
- The pitch is 2:12 or steeper, since low-slope installs need specialized mounting
- The installer obtains a structural engineering letter confirming load capacity
- The local AHJ (Authority Having Jurisdiction) permits the install under HUD-code provisions
For standing-seam metal, S-5! clamps grip the seam without penetrating it, which is the most common approach and sidesteps waterproofing worries entirely. Composition roofs use the same rail-and-lag systems as site-built installs. Wood-truss roofs added in a HUD-standard renovation are usually stronger than the original metal frame and often take standard racking without modification.
Which Mounting Option Gives the Best Value for Mobile Home Owners?
So why default to the roof at all? You're not limited to it. For many manufactured homes, a ground-mount or carport system is the better choice - lower structural risk, optimal panel angle, and no roof penetrations that could void your HUD warranty. In my experience, the homeowners who paid the extra $1,000 - $2,000 for ground-mount almost never regretted it.
- Roof-mount: Brackets attach to roof rafters, 10 - 15% cheaper than ground-mount. Improper penetrations can void the HUD warranty, so the installer must use an approved method.
- Ground-mount: A racking frame on your lot, structurally independent of the home. Optimal tilt angle and easy cleaning access, but needs lot space and park approval on leased land.
- Carport mount: Panels over a parking area generate power and provide shade at once - popular where roof conditions vary.
- Community solar: If your park bans individual installs, a subscription earns bill credits from a shared offsite array. Availability varies by state.
The land requirement is the one thing that rules ground-mount out: roughly 100 sq ft per kW, so a 5 kW array needs about 500 sq ft of flat, unshaded ground near the home. The $1,000 - $2,000 premium also buys something back, because it avoids the $300 - $600 structural engineering report a rooftop install needs. In a community, a ground mount may need park approval and an easement on top of that.
How Much Does Solar Cost for a Manufactured Home?
NREL's analysis of solar costs in manufactured housing contexts (NREL, 2021) found that system costs run 5 - 15% higher than equivalent site-built installations, reflecting the additional structural assessment, specialized racking, and smaller-batch purchasing that manufactured home work requires.
| System Size | Typical Application | Gross Cost (2026, no federal credit) |
|---|---|---|
| 2 - 3 kW (6 - 10 panels) | Single-wide, low usage | $8,000 - $12,000 |
| 4 - 5 kW (12 - 16 panels) | Double-wide, average usage | $14,000 - $18,000 |
| 5 - 7 kW (16 - 22 panels) | Large double-wide + EV or A/C | $18,000 - $25,000 |
The 30% Residential Clean Energy Credit (IRS Form 5695) applied to manufactured homes used as a primary residence, regardless of whether you own or lease the land, through December 31, 2025. The One Big Beautiful Bill Act ended Section 25D on that date with no phase-down, so a homeowner buying or financing in 2026 gets $0 back federally, the gross cost above is what you actually pay. State programs like California SASH and New York EmPower+ still apply and can meaningfully offset the gap.
Budget reality: Electrical panel upgrades are a common hidden cost. Manufactured homes built before 1990 frequently have 100-amp service. Upgrading to 200 amps costs $1,500 - $3,500 and is often required before a grid-tied inverter can be connected. Ask each installer for an itemized quote that includes electrical work.
How Much Energy Does a Manufactured Home Use?
The U.S. Energy Information Administration's Residential Energy Consumption Survey (EIA RECS, 2020) reports average manufactured home electricity consumption of 1,045 kWh per month - higher per square foot than most site-built homes due to older insulation standards, single-pane windows, and HVAC inefficiency common in homes built before the 1994 and 2000 HUD energy standards updates.
A 4 kW solar system in an average-sun US location (Atlanta, Dallas, Denver) generates approximately 4,800 - 5,800 kWh/year, covering roughly 38 - 46% of a double-wide's annual average demand. Upgrading to 5 kW reaches 60 - 70% offset. Pairing solar with insulation improvements, a mini-split heat pump, and LED lighting can reduce total consumption by 20 - 30% before you size the solar system - dramatically improving your payback period.
Two sources disagree here, and it's worth knowing why before you size anything. That EIA figure works out to about 12,540 kWh/year, while NREL's manufactured-housing research puts the average nearer 11,800 kWh/year.
Which is right? Both, and the gap between them is the useful part. EIA RECS surveys occupied manufactured homes of every vintage; NREL's manufactured-housing work leans toward the stock that solar programs actually reach. A home with electric resistance heat lands at the top of that spread, and one with a heat pump and post-2000 insulation lands at the bottom. That's why sizing off your own utility bills beats sizing off square footage:
| Home Type | Typical Annual Use | Recommended System |
|---|---|---|
| Single-wide (800 - 1,000 sq ft) | 6,000 - 9,000 kWh/yr | 2 - 5 kW |
| Double-wide (1,200 - 2,000 sq ft) | 9,000 - 14,000 kWh/yr | 4 - 8 kW |
| Triple-wide / park model | 12,000 - 18,000 kWh/yr | 7 - 12 kW |
| Older unit with electric heat | 14,000 - 22,000 kWh/yr | 8 - 15 kW |
Homes with electric resistance heating or an aging HVAC unit burn disproportionately more electricity, so swapping to a heat pump before you size solar shrinks the array you need and improves the economics twice over.
When sizing a string, match your panel design to your inverter and service panel capacity - see our explainer on solar panel voltage. On a low-pitch manufactured roof where partial shade is likely, panel-level electronics matter: the SolarEdge P370 optimizer stops one shaded panel dragging down the whole string, and the section below weighs that against microinverters and plain string inverters. Weight matters too - our best solar panels for 2026 ranking includes weight-per-watt data relevant to HUD-code roof limits.
Which Inverters Work Best?
For rooftop systems, microinverters like the Enphase IQ8A get specified for two reasons:
- Partial shading tolerance: Manufactured home lots often have mature trees the owner can't remove. Microinverters let each panel work independently, so one shaded panel doesn't drag down the whole string.
- Smaller string sizes: A 3 - 5 kW system may carry 8 - 14 panels, too few for optimal string sizing on some string inverters. Microinverters work efficiently at any array size.
For ground-mounted systems with clear unshaded exposure, a string inverter like the SMA Sunny Boy 6.0-US or Growatt MIN 6000TL-XH is the cost-efficient pick. The SolarEdge SE6000H with P730S optimizers adds per-panel monitoring, which earns its keep on a remote system nobody inspects by hand.
Battery storage, whether that's the Tesla Powerwall 3 or the Enphase IQ Battery 5P, makes particular sense where the grid drops often or a time-of-use tariff applies, and where the home is hard to heat or cool without power.
What Financing Constraints Should the Plan Account For?
Two technical decisions feed straight into which loans you can actually use, so settle them early:
- Foundation type drives loan eligibility. Real-property homes can use FHA Title I, Fannie Mae MH Advantage, and PACE where it's offered. Chattel-titled homes are limited to FHA Title I and unsecured loans, since PACE isn't available for personal property in most states. Confirm title status before signing, because refinancing once the panels are up is genuinely hard.
- Mounting choice changes the loan ceiling. Ground-mount adds $1,000 - $2,000, and that can push a project past FHA Title I's $25,000 cap. Plan the mount against the financing route, not after it.
Do You Need Permits and Community Approval?
In a manufactured home community (MHC), you'll need four things:
- Park or community approval: Most MHC leases require written consent for permanent modifications. Some communities ban solar outright; others are permissive.
- Local AHJ permits: Required either way. Manufactured homes sometimes fall under a state housing agency rather than the local building department.
- Utility interconnection agreement: Required for any grid-tied system, occasionally with an extra inspection.
- HOA rules: Some subdivisions carry aesthetic restrictions.
On land you own, permitting follows standard residential procedure. The manufactured classification gets noted and rarely changes the outcome.
What State Programs Support Mobile Home Solar?
The federal credit is the floor, not the ceiling. Many states run specific programs targeting solar access for manufactured housing residents:
- California SASH (Single-family Affordable Solar Homes): Provides $3/W upfront incentive for qualifying low-income manufactured home owners
- New York EmPower+: Combines insulation, weatherization, and solar for income-qualifying residents
- New Mexico: Manufactured Housing Improvement Program includes solar grant funding
- Oregon: Manufactured Home Park Program supports community solar access
Search DSIRE using the "manufactured housing" filter to find programs in your state. Once installed, our guide to increasing solar PV yield helps you get the most from the array.
Summary
Solar is a practical, cost-effective upgrade for a mobile or manufactured home, and the HUD-code details decide most of the plan. The key step is a roof load assessment - most HUD-code roofs built after 1976 can carry solar after a $200 - $500 engineering check, and ground-mount is an excellent fallback where they can't. A typical double-wide project runs $14,000 - $18,000; the 30% federal Residential Clean Energy Credit that used to cut that to $9,800 - $12,600 ended December 31, 2025, so 2026 buyers pay the full gross cost unless they route through a lease or PPA, or stack state programs like SASH or EmPower+. Microinverters suit shaded rooftop arrays; a string inverter or optimizers fit a ground mount with clear southern exposure. Sort out title status before financing, and get park approval in writing before anyone climbs on the roof.