What the law says
HB 340 defines a portable solar generation device and sets a maximum power output of 1,200 W; the statute text does not say whether that 1,200 W refers to AC or DC output. The legislature records the Governor’s signature on March 25, 2025, and the enrolled bill took effect on May 7, 2025.
The law exempts these portable devices from the usual interconnection requirements and from entering an interconnection agreement. The legislature's text says an electrical corporation may not require customer approval before installation, and may not charge fees or require additional equipment beyond what is integrated into the system.
HB 340 requires the system to be certified by Underwriters Laboratories or an equivalent nationally recognized testing laboratory, to meet the National Electrical Code and to include a feature that prevents the device from energizing the building during a power outage. The statute also says the device is designed to connect through a standard 120-volt AC outlet. Bright Saver notes the bill does not require landlord permission and gives no answer on whether an HOA can prohibit systems.
- Cap: 1,200 W (statute text does not specify AC or DC)
- No utility approval, interconnection agreement or related fees required
- Must be UL-certified (or equivalent) and meet the NEC
- Must include anti-islanding/outage protection
- Designed to connect via a standard 120-volt AC outlet
- Bright Saver: landlord permission not required by the bill; no answer on HOA bans
Before you buy in Utah
Check three things before you buy: the product label for the required certification and safety features, your lease or HOA rules, and the kit's expected production at your location using the calculator. Confirm the full system is certified by Underwriters Laboratories or an equivalent lab and that anti-islanding/outage protection is included as the statute requires.
Several kits in official stores meet the 1,200 W cap. Examples from sellers: EcoFlow STREAM with a 400 W panel and inverter output up to 1,200 W ($799 on the official store, checked October 14, 2026), EcoFlow STREAM with 2 × 400 W panels (800 W of panels, inverter up to 1,200 W; $1,099 on the official store, sold out on October 14, 2026), and Mango Power S 1200W (1,200 W of panels and inverter up to 1,200 W; $2,698 on the official store, checked October 14, 2026). EcoFlow lists UL 1741; UL 3700 status is not published for those listings.
The calculator gives site-specific estimates. For Utah's population-center area it shows an 800 W kit mounted vertically and facing south produces 804 kWh a year; 448 kWh (56%) is used at home and 356 kWh is exported, and at 13.16 cents/kWh the used power is worth $59 a year (exports paid $0). Tilted 30° the same 800 W kit produces 1,222 kWh and saves $70 a year. A 1,200 W kit vertical south produces 1,207 kWh and saves $64 a year. Individual years vary by about 4%.
- Confirm system-level UL (or equivalent) certification and anti-islanding/outage protection
- Check your lease and HOA restrictions before buying
- Run your address in the calculator and compare kits on the kits list
