Plug-in solar in Utah
Law in effect Checked November 10, 2026
Utah was the first state to pass a plug-in solar law. Since May 7, 2025, a device of up to 1,200 watts that plugs into a standard 120-volt outlet and is certified by UL or an equivalent lab needs no utility approval, fee or interconnection agreement. It must shut off during a power outage.
Effective date: May 7, 2025
The law
| Bill | Stage | Last action | Dates |
|---|---|---|---|
| H.B. 340 Solar Power Amendments Laws of Utah 2025, Chapter 250 | Signed into law | Governor Signed (March 25, 2025) | Signed: March 25, 2025 Effective: May 7, 2025 |
The rules
| Rule | What the law says | Source |
|---|---|---|
| Maximum size (output) | 1,200 W A "portable solar generation device" has a maximum power output of not more than 1,200 watts (Utah Code 54-15-102(13)(a)). | Source |
| Panel (DC) limit | No limit set The law sets an output limit only; it does not cap panel (DC) wattage. | Source |
| Plug-in batteries | Not mentioned in the law The law does not mention batteries. | Source |
| Tell your utility? | No The law contains no notice requirement. Utilities may not require approval, fees or extra equipment (54-15-601(3)). | Source 1 Source 2 |
| Utility approval needed? | No An electrical corporation may not require a customer to obtain its approval before installing or using the device (54-15-601(3)(a)(i)). | Source |
| Renters and landlords | Not mentioned in the law The law says nothing about landlords or tenants. | Source |
| HOAs and condo associations | Not mentioned in the law The law says nothing about HOAs or covenants. | Source |
| Safety certification required | Certified by UL or an equivalent lab Device must be certified by Underwriters Laboratories or an equivalent nationally recognized testing laboratory, meet the most recent National Electrical Code, and connect through a standard 120-volt outlet (54-15-102(13)). No specific standard is named. | Source |
| Net metering | Excluded A qualifying device "is not subject to the net metering program requirements" (54-15-601(1)(b)). | Source |
What's next
The law has not been amended since 2025. It is silent on renters, HOAs and batteries, so lease and HOA rules still apply.
Kits in Utah
| Kit | AC output | UL 3700 | Fit in Utah |
|---|---|---|---|
| APsystems EZ1-LV plug-in microinverter | 900 W | Certified (certificate seen), component only | Likely compatible: confirm with seller certificate |
| EcoFlow STREAM Microinverter | 1,200 W | Unknown | Listing claimed, no certificate seen maker’s claim |
| EcoFlow STREAM Microinverter + 2 x 400W Rigid Solar Panels | 1,200 W | Unknown | Listing claimed, no certificate seen maker’s claim |
| Hoymiles HiFlow Pro LV HMS-391-1WM-LV | 391 W | Claimed by maker, not verified | Listing claimed, no certificate seen maker’s claim |
| Hoymiles HiFlow Pro LV HMS-420-1WM-LV | 420 W | Claimed by maker, not verified | Listing claimed, no certificate seen maker’s claim |
| Bright Saver Balcony Solar Kit, 180 W | Not stated | Not certified | Listing claimed, no certificate seen maker’s claim Output not stated, but its panels total 180 W, so it cannot exceed the limit. |
| Bright Saver Balcony Solar Kit, 360 W | Not stated | Not certified | Listing claimed, no certificate seen maker’s claim Output not stated, but its panels total 360 W, so it cannot exceed the limit. |
| CraftStrom 800 Watt Plug&Play Solar | 700 W (estimated) | Unknown | Listing claimed, no certificate seen maker’s claim |
| CraftStrom 1200 Watt Plug&Play Solar | 1,050 W (estimated) | Unknown | Listing claimed, no certificate seen maker’s claim |
| EcoFlow STREAM Ultra | 800 W | Unknown | No certification evidence found |
What these labels mean
- Likely compatible: confirm with seller
- Within the size limit, and we have seen a lab certificate for the kit’s inverter. The law asks for lab certification without naming a standard, so confirm with the seller that the whole kit qualifies.
- Listing claimed, no certificate seen
- The maker says the product is lab-listed (for example to UL 1741), but we have not seen a certificate.
- No certification evidence found
- We found no certificate and no claim for the certification this state requires.
What could it save?
For an 800 W panel kit at Utah's average residential price of 13.26¢/kWh (September 2025 – August 2026 (12 months)):
- Ideal tilt (20°, south)
- 1,194 kWh a year: about $109 typical (69% used at home), up to $158 best case (100%)
- Vertical railing (90°, south)
- 796 kWh a year: about $73 typical (69% used at home), up to $106 best case (100%)
"Typical" uses HTW Berlin's model for an 800 W system without a battery; exports are assumed to earn nothing. Solar data: NREL PVWatts for Salt Lake City (capital). Try your own numbers · Is it worth it? · Railing vs tilted
Price source: EIA residential average, September 2025 – August 2026 (12 months).
Questions
Is plug-in solar legal in Utah?
Yes. Utah was the first state to pass a plug-in solar law. Since May 7, 2025, a device of up to 1,200 watts that plugs into a standard 120-volt outlet and is certified by UL or an equivalent lab needs no utility approval, fee or interconnection agreement. It must shut off during a power outage.
How big can a plug-in solar system be in Utah?
A "portable solar generation device" has a maximum power output of not more than 1,200 watts (Utah Code 54-15-102(13)(a)).
Do I have to tell my utility in Utah?
No. The law contains no notice requirement. Utilities may not require approval, fees or extra equipment (54-15-601(3)).
Can my landlord stop me from using plug-in solar in Utah?
The Utah law does not mention landlords, so your lease still governs. The law says nothing about landlords or tenants.
What certification does a kit need in Utah?
Device must be certified by Underwriters Laboratories or an equivalent nationally recognized testing laboratory, meet the most recent National Electrical Code, and connect through a standard 120-volt outlet (54-15-102(13)). No specific standard is named.
Which kits are confirmed to qualify in Utah?
None yet. We have not seen a certificate covering a complete kit, so no kit is marked compatible in Utah.
Neighbouring states
- Arizona: Status not yet confirmed
- Colorado: Law in effect
- Idaho: Bill failed or died
- New Mexico: Bill failed or died
- Nevada: No bill found
- Wyoming: Bill failed or died
Related: is it worth it? · railing vs tilted panels · renters guide · all kits · Certification watch · how we verify
Sources
- Utah Legislature: H.B. 340 (2025 General Session) bill page and status (Legislature bill page; accessed November 10, 2026)
- H.B. 340 Solar Power Amendments, Enrolled Copy (Law text; accessed November 10, 2026)
- Utah Code 54-15-601 (current text) (Law text; accessed November 10, 2026) Shows "Enacted by Chapter 250, 2025 General Session"; no later amendment.
This page is general information, not legal or electrical advice. Laws change and utilities differ. Check the linked official sources, your lease or HOA rules, and your utility before you buy or install anything. Full disclaimer.