Plug-In Solar for Houses: Yards, Patios, Shed Roofs and HOAs

Short answer: a house is the easy case for plug-in solar. You usually have a yard, a patio or a deck with sun, and room to tilt the panels toward the sky on a stand instead of hanging them flat on a railing. In our numbers for 55 US cities, an 800 W kit on a south-facing stand tilted at 30° makes about 1.2 to 2.2 times what the same kit makes hung vertically. Three things still decide whether you can do it: your state’s law and your utility, the outlet you plug into, and, if you have one, your HOA. A shed or garage roof is a special case: roof-mounted panels fall outside the plug-in standard’s scope.

Most US homes are houses: 77.1 million of the 123.5 million homes in the EIA’s 2020 housing survey, or 62%, were single-family detached (RECS 2020, Table CE2.1). This guide is for them. Renters in apartments have different rules, set by the lease and the landlord: see our guide to plug-in solar for renters.

Check your state and your utility first

Plug-in solar only has its own rules in the states that passed a law for it, and most of those laws start between 2026 and 2027. Everywhere else, your utility’s interconnection rules for rooftop solar apply, which usually means applying and waiting for approval before you connect anything. Our plug-in solar laws by state shows what each law allows, the cap (mostly 1,200 W) and whether you have to tell your utility. Read it before you buy.

Where to put the panels

The best spot is the one with the most direct sun through the day, facing as close to south as you can, with no shade from trees, the house or a fence.

• A stand in the yard or on a patio: this is where a house wins. Panels on a stand can be tilted toward the sun. Across the 55 cities in our savings by state, 800 W facing south at 30° makes about 770 to 1,480 kWh a year, against 600 to 930 kWh hung vertically. The gap is largest in sunny, southern places (more than double in Honolulu) and smallest in the far north (about 20% more in Anchorage).
• A deck or porch railing, or a wall: the same as a balcony. It’s simpler, but a vertical panel makes less.
• A shed or garage roof: see the next section before you plan on it.

Wherever it goes, follow the kit maker’s instructions for securing it against wind and snow. UL 3700 covers those instructions, but it doesn’t evaluate the structure you fix the panels to (UL 3700 scope). Our calculator shows what a stand or a railing makes where you live, and how shade changes it.

Can you put plug-in solar on a shed roof?

Be careful here. The scope of UL 3700, the safety standard written for plug-in solar, says it does not include roof mounted PV, building-integrated PV, or systems permanently connected to your wiring (UL 3700 scope). Systems connected to the wiring, it adds, fall under local building codes such as the National Electrical Code and fire codes. So a kit on a roof is outside what the standard evaluates. The state laws also have movable devices in mind: Vermont’s, for example, says a device must be temporarily but securely attached to the ground or a structure.

If a low, flat shed roof is your only sunny spot, ask the seller whether the kit’s instructions and listing cover that mounting, and ask your building department or a licensed electrician before you put anything on a roof. A ground stand next to the shed avoids the question.

The outlet you plug into

Home wiring was designed for power to flow one way, from the breaker panel to your appliances. UL Solutions’ safety paper on plug-in PV names two problems that matter at a house:

• Outdoor GFCI outlets. Ground-fault protection is a critical safety feature outdoors and in wet areas, and plug-in systems can compromise it: GFCI standards assume current flows one way.
• Hidden overloads. When solar feeds a circuit that’s also powering appliances, the combined current can exceed what the wiring is rated for without tripping the breaker.

That’s why UL 3700 applies only where every part of the circuit, outlets and GFCIs included, is listed for current in both directions. Use a kit that is certified as a complete system (our UL 3700 guide shows how to check the lab’s own listing), follow its instructions for the outlet, and ask a licensed electrician about anything beyond plugging in, such as a new outdoor outlet or circuit. The electrical code has no definition of plug-in solar, say the six proposed amendments that would add one.

What your HOA can say

If your house is in a homeowners association, its rules on what you put outside still apply in most states. Plug-in solar laws change what your utility can ask of you, and most don’t mention HOAs at all. Four do, as of October 29, 2026:

Bill

S.202

Cap

1,200 W combined inverter capacity per electric meter

Takes effect

July 1, 2026

Checked

October 29, 2026

Vermont’s Act 149 extends the state’s existing protection for solar collectors: deed restrictions, covenants and similar agreements can’t prohibit, or have the effect of prohibiting, a plug-in device appurtenant to your building.

Bill

HB26-1007

Cap

1,920 W to the grid; one system per address

Takes effect

August 12, 2026

Checked

October 29, 2026

Colorado’s law took effect on August 12, 2026, but its HOA rule starts on January 1, 2027. From then, no one can unreasonably prohibit a device, and a covenant or restriction that does is void. A property owner can still set reasonable restrictions, including prior notice, rules against fire or overloading the wiring, and where the device goes. In a common-interest community you may have to secure it to your unit or your own patio, deck or balcony, and take on the costs and liability.

Bill

S2368

Cap

1,200 W per service address, or per dwelling unit in multi-family housing

Checked

October 29, 2026

New Jersey’s law was approved on September 1, 2026 and takes effect six months later. Under the text that passed both houses, an HOA, condo association or co-op can’t enforce a rule that bans a device on the exterior of your premises; it can set reasonable restrictions on size and placement, and it can ask you to indemnify it for injury or damage caused by negligent installation, maintenance or use.

Bill

HB 395

Cap

1,200 W per customer, or per unit in multi-family housing

Takes effect

January 1, 2027

Checked

October 29, 2026

Virginia goes the other way. Its law (Chapter 1052) stops localities from prohibiting devices on residential structures that meet zoning height and setback rules and any local historic district rules, but it says it doesn’t limit recorded covenants, condo instruments or property owners’ association declarations. Your HOA’s rules still decide.

Everywhere else, read your HOA’s covenants and architectural rules before you buy, and ask in writing if they don’t mention solar or plug-in devices.

Bottom line

A house gives plug-in solar what an apartment often can’t: space, sun and a choice of where to put it. A tilted stand in the sunniest part of the yard is the setup that makes the most. Before you buy, check your state’s law and your utility, choose a kit certified as a complete system, and read your HOA’s rules. Skip the roof unless the kit’s instructions and your building department say yes, and leave new outlets or circuits to a licensed electrician.

How we checked this

The production figures come from our savings by state: PVGIS models for 800 W facing south with no shade, in one city per state plus five in California, vertical (90°) versus a 30° stand. The ratio is stand kWh divided by railing kWh for each city. We read the UL 3700 scope on UL Standards & Engagement’s site and UL Solutions’ safety paper on October 29, 2026. For the four states, we read each bill’s status and enacted or as-passed text on the legislature’s own site on October 29, 2026: Vermont’s Act 149, Colorado’s session law (Chapter 127), New Jersey’s S2368 and its bill history, and Virginia’s Chapter 1052.