Plug-In Solar in Utah

Yes, it is. Under Utah law, plug-in solar kits of up to 1,200 watts can run on a standard 120-volt outlet. You need no utility approval, no fee, and no interconnection agreement.

A home with a plug-in solar panel on the porch railing, the kind of kit Utah's rules apply to

Legal in Utah todayHB 340
Up to 1,200 W, which is the cap per home.
13.2 centsEIA's average home price per kWh from Jan to Aug 2026.
$160 per year.In Salt Lake City, an 800 W kit, with no utility solar fee counted in.

Choose your Utah kit at or under 1,200 W before connecting, and make sure its inverter stops sending power when the grid fails.

Utah Law Explained

Signed on Mar 25, 2025, HB 340 takes effect on May 7, 2025. The bill appears in the 2025 General Session laws of Utah, at Chapter 250.

Size listed: 1,200 W

For safety: Certification from Underwriters Laboratories or a comparable nationally recognized testing laboratory (NRTL) is required, along with meeting the current National Electrical Code. It must include a feature that keeps it from energizing the wiring in the building if the power goes out.

Utility approval: Not needed. The utility, which the law calls an electrical corporation, may not require approval before you install or use the device. It is exempt from both the interconnection requirements and the interconnection agreement.

Telling the utility: No notice step applies under the law to customers.

Fees: The utility can't require any device-related fee or charge, or any extra controls or equipment beyond what's built in.

Net metering: The device sits outside the net metering program requirements, so any exported power brings in no net metering credit.

It has to go into a standard 120-volt outlet for alternating current, and it is meant to offset part of the electricity the home uses.
The utility isn't liable for damage or injury that a portable solar generation device causes.
On January 1, 2036, the whole chapter on Net Metering of Electricity (Title 54, Chapter 15) is set for repeal, if the legislature doesn't extend it. That chapter holds the plug-in rule.

View the bill

Bigger Systems and the Rules That Come Before This Law

Hooking up: Ordinary rooftop setups (over 1,200 W, residential sizes up to 25 kW) count as customer generation systems. Your utility might require an interconnection agreement. Rocky Mountain Power handles an online application that includes a meter photo. A plug-in device that qualifies under the law needs none of that.

Net metering: Rocky Mountain Power places new solar customers under Schedule 137 Net Billing, and that schedule pays an export credit rate for the power sent to the grid rather than classic net metering.

How Much a Kit Saves in Utah

Panels in Salt Lake City: PVWatts shows 1,521 kWh a year for each 1 kW. Utah households pay 13.2 cents for each kWh in 2026 so far. For an 800 W kit, it depends on where you put it:

Where the panels go	kWh a year	Saved a year
Tilted south on a stand	1,217	$160
Upright on a railing	767	$101
Facing east or west	973	$128

Each Month in Salt Lake City

Jan67
Feb80
Mar106
Apr108
May124
Jun127
Jul129
Aug127
Sep112
Oct102
Nov74
Dec60

kWh a kit of 800 W makes when tilted south.

Kits That Stay Under the 1,200 W Cap

Kit	kWh a year	Saved a year	Pays back in	Price
US Solar Supplier 1180 W EZ1 Kit	1,795	$237	3.8 years	$899
Bright Saver 360 W Balcony Kit	548	$72	5.7 years	$414
EcoFlow STREAM 800 W Kit	1,217	$160	6.8 years	$1,099

Tilted south, all of it used at home. Compare all the kits

Utah Facts Worth Knowing

Utah's plug-in law has applied since May 7, 2025, which is longer than in most states, and buyers don't have any notice step to follow.
Power in Utah costs little. Homes paid an average of 12.22 cents/kWh in 2024, so payback on a kit comes more slowly than in high-rate states.
Most homes in Utah get their power from Rocky Mountain Power (PacifiCorp), the only investor-owned utility in the state.

Do You Rent or Have a Balcony?

The mount isn't covered by Utah's law, but the hookup is, so ask your landlord or HOA before you start. Read about balcony solar and solar for apartments.

Key Utilities

Rocky Mountain Power (PacifiCorp)
Provo City Corporation
City of St George
Dixie Escalante R E A

Next Steps for You in Utah

Select a kit rated at or under 1,200 W. Of the 7 kits we compared, all 7 meet that cap, and each must have the listing named by law. Compare the kits.
Check the notice rule above, then let your electric utility know if it applies in your case. File the kit's spec sheet alongside your other documents.
Use a grounded outlet on a circuit that has little else on it; a power strip is never an option.

Sources

See all states at a glance or a neighboring state: Idaho, Nevada, Colorado.