Plug-in solar: the plain-English guide
Plug-in solar is any small solar system that connects to your home through a normal wall outlet instead of being wired in by an electrician. On a balcony people call it balcony solar. On a patio, fence or garage wall it’s the same thing. State laws call it a “portable solar generation device” or something close.
Updated October 2026
It’s not just for balconies
Anywhere a panel gets sun and a cable can reach an outlet works:
- Balcony railing. The classic spot. Panels hang upright, which costs some output. Mounting options.
- Patio or yard. A ground stand lets you tilt the panel toward the sun. That can make 50% more power than hanging it straight up.
- Fence or wall. Good if it faces south, east or west and isn’t shaded.
- Flat garage roof or shed. Often the sunniest spot on a property.
Plug-in solar vs. the alternatives
| Plug-in solar | Rooftop solar | Power station + panels | |
|---|---|---|---|
| Typical size | 400–1,200 W | 6,000 W and up | A few hundred watts of panels |
| Typical price | $600–$1,500 | Many thousands | Hundreds to thousands |
| Who installs it | You | An installer, with permits | You |
| Feeds your home wiring | Yes, through an outlet | Yes, wired in | No, devices plug into it |
| Works in a blackout | No | Only with a battery | Yes |
| Good for renters | Yes | Rarely | Yes |
Plug-in solar saves money every day but does nothing in a blackout. A power station gives you backup but saves very little on your bill, because you have to move devices onto it. Which setup fits you.
The laws in one paragraph
Ten states have plug-in solar laws: Utah, Vermont, Maryland, Maine, Colorado, Connecticut, Virginia, New Hampshire, California and New Jersey. Most cap systems at 1,200 W, require a certified kit, and stop the utility from demanding an interconnection agreement. Few say anything about landlords, and most say nothing about paying you for extra power. What the laws actually say.
The numbers
A typical 800 W kit on a south-facing railing makes about 650 to 850 kWh a year in most of the US. What that’s worth depends on your power price: about $207 a year in California, $143 in New York, under $100 where power is cheap. Run your numbers.
Common questions
Is plug-in solar worth it?
In states with high power prices, usually yes: a well-placed 800 W kit pays back in roughly 3 to 6 years. Where power is cheap it can take 8 years or more. Payback by state.
Is a portable power station with solar panels the same thing?
No. A power station is a big battery. Your devices plug into it, and it never sends power into your home’s wiring. A plug-in solar kit does the opposite: it plugs into your wall and feeds your home directly. Some newer products combine both.
Do I need my utility's permission?
In the ten states with a plug-in solar law, a qualifying kit doesn't need an interconnection agreement. Elsewhere, the utility's normal solar rules apply, which usually means asking first.
Can I use plug-in solar in a house, not an apartment?
Yes. The laws cover homes, apartments and condos. In a house, a fence, garden stand or garage wall often gets more sun than a balcony would.
Sources
- Solar.com, 2026 Guide to Balcony & Plug-In Solar (state law table, updated October 1, 2026).
- pv magazine USA, Newsom signs California plug-in solar bill, October 1, 2026.
- Production and savings: our calculation method.