There's a bill moving through the Minnesota Legislature right now that's getting a lot of attention — and generating a fair amount of confusion. HF3555 and its Senate companion SF3873 would allow homeowners to connect small solar panels directly to a standard wall outlet without filing an interconnection agreement with their utility. No approval process. No waiting.
Sounds simple. And in some ways it is. But there's more to the story.
What Is Plug-In Solar?
Plug-in solar (also called balcony solar or plug-and-play solar) is exactly what it sounds like. A kit typically includes:
- One to four solar panels (400 to 1,200 watts total)
- A micro-inverter that converts the panels' DC output to AC power synchronized with your home's grid
- A cable that connects to a standard outlet
- Mounting hardware for a deck, balcony, backyard, or fence
The micro-inverter synchronizes with your home's electrical current and feeds power into your circuits automatically. Appliances draw from the solar output first before pulling from the grid. When the sun goes down — or if grid power goes out — the unit shuts off automatically. No batteries, no net metering, no complexity.
It's popular in Europe. Germany alone has over four million installations.
What the Minnesota Bill Would Do
HF3555, introduced by Rep. Larry Kraft (DFL-St. Louis Park) with over 20 co-sponsors, and SF3873, authored by Sen. Rob Kupec (DFL-Moorhead) in the Senate, would:
- Define a plug-in solar device as one with a maximum output of 1,200 watts
- Prohibit utilities from charging fees or requiring approval before a customer installs one
- Allow utilities to request notification as a courtesy — but not require permission
- Require devices to carry UL certification from a nationally recognized testing lab
The bill's local connection is worth noting: Sen. Kupec represents Moorhead. This legislation directly affects our market.
What Plug-In Solar Can and Can't Do
Let's be honest about the numbers. A 1,200-watt plug-in system will offset roughly 5 to 25 percent of a typical home's electricity use, saving an estimated $35 to $55 per month. Payback period: three to seven years on a system costing $500 to $2,000.
That's meaningful. But it's not the same as a full rooftop system.
A properly sized residential solar installation — typically 7 to 12 kilowatts — can cover most or all of your home's usage, qualifies for net metering (getting credit for excess power you send to the grid), and adds measurable value to your property. Plug-in solar does none of those things. It doesn't feed back to the grid, doesn't qualify for net metering credits, and won't affect your home's appraisal.
What it can do is provide an accessible, low-cost entry point — especially for renters, condo owners, or anyone who isn't ready to commit to a full installation.
The Electrician Question
This is where it gets nuanced. The National Electric Code has historically required that anything adding power to a circuit be wired through the panel. Plug-in solar bypasses that by adding current to a circuit from the outlet side — which means a circuit can carry more load than its breaker is rated to detect.
The Minnesota Department of Labor has indicated no electric code changes are needed for devices meeting UL standards. The bill contemplates that most installations won't require a licensed electrician — provided the outlet is already properly wired on its own circuit.
In practice: if you have a properly wired outdoor GFCI outlet on a dedicated circuit, you may be able to install a certified plug-in system without any additional electrical work. If you don't, an electrician would need to install the outlet first. Either way, it's significantly less involved than a full rooftop system.
One Catch: No Products Are Certified Yet
UL Solutions released the UL 3700 certification standard for plug-in solar in December 2025. As of early 2026, no products had completed certification under that standard. The market is catching up to the regulatory framework — which means even if the bill passes, buying a properly certified unit will take some time.
What About North Dakota?
There is no pending plug-in solar legislation in North Dakota. Under current state rules, utilities can require interconnection agreements for any device that connects to a home's electrical system. Whether a co-op or municipal utility would flag a small plug-in system as requiring an agreement depends on the utility — it's not standardized.
If you're in North Dakota and curious about plug-in solar, the honest answer is: check with your utility before buying anything.
The Bigger Picture
The Minnesota bill represents a shift in thinking about who solar is for. Full rooftop systems remain the best long-term investment for homeowners who own their property and want to make a meaningful dent in their energy costs. But plug-in solar opens the door for a lot of people who've been locked out of that conversation — renters, apartment dwellers, anyone dealing with a challenging roof or HOA restrictions.
Both paths are worth understanding. If you're a homeowner trying to figure out which one makes sense for your situation, that's exactly the kind of conversation we have every day.
Have questions about solar in North Dakota or Minnesota? Contact our team — we're happy to talk through what makes sense for your home or business.