2026 Utah Solar ROI & Electric Rate Breakdown by County (12 Counties)
Intermountain West TOU & Net Billing Export Credit; pairing a 14.3kWh LFP home battery eliminates 4 PM–9 PM Peak TOU demand charges and provides off-grid mountain storm autonomy.. Cache County enforces NEC 690.12 rapid shutdown and ASCE 7 wind/snow load engineering; ranches, orchards, and rural businesses qualify for the 50% USDA REAP Solar Grant.
| County | Primary Electric Utility | Avg Rate ($/kWh) | Peak Sun Hours | Est. Yr-1 Savings | Cash Payback | County Teardown |
|---|---|---|---|---|---|---|
| Cache County | Rocky Mountain Power / Logan City Light & Power | $0.13/kWh | 5.4 hrs/day | $2,050/yr | 8.9 yrs | View Math → |
| Tooele County | Rocky Mountain Power | $0.14/kWh | 5.6 hrs/day | $2,289/yr | 8 yrs | View Math → |
| Box Elder County | Rocky Mountain Power / Brigham City Public Power | $0.13/kWh | 5.5 hrs/day | $2,088/yr | 8.8 yrs | View Math → |
| Iron County | Rocky Mountain Power / Dixie Power | $0.14/kWh | 6.1 hrs/day | $2,494/yr | 7.4 yrs | View Math → |
| Summit County | Rocky Mountain Power | $0.14/kWh | 5.5 hrs/day | $2,248/yr | 8.2 yrs | View Math → |
| Wasatch County | Heber Light & Power / Rocky Mountain Power | $0.13/kWh | 5.5 hrs/day | $2,088/yr | 8.8 yrs | View Math → |
| Uintah County | Moon Lake Electric Association / Rocky Mountain Power | $0.14/kWh | 5.7 hrs/day | $2,330/yr | 7.9 yrs | View Math → |
| Sanpete County | Rocky Mountain Power / Garkane Energy | $0.14/kWh | 5.8 hrs/day | $2,371/yr | 7.7 yrs | View Math → |
| Salt Lake County | Rocky Mountain Power (PacifiCorp) / Murray City Power | $0.13/kWh | 5.5 hrs/day | $2,145/yr | 6.2 yrs | View Math → |
| Utah County | Rocky Mountain Power / Provo Power / Spanish Fork Power | $0.13/kWh | 5.6 hrs/day | $2,184/yr | 6 yrs | View Math → |
| Davis County | Rocky Mountain Power / Bountiful City Light & Power | $0.13/kWh | 5.4 hrs/day | $2,106/yr | 6.3 yrs | View Math → |
| Washington County | Dixie Power / St. George Energy Services / Rocky Mountain Power | $0.13/kWh | 6.2 hrs/day | $2,418/yr | 5.4 yrs | View Math → |
Recommended Home Battery & Hybrid Inverter Kits for Utah
Turnkey solar salespeople routinely charge $3.60–$4.80/W by bundling 30% loan dealer fees and $12,000+ battery margins. Buying Tier-1 UL9540 hardware directly—either DIY or hiring a local licensed electrician ($1,500–$2,500)—cuts total cost by 50–65%.
EG4 18kPV Inverter + 14.3kWh PowerPro WallMount
The gold-standard UL9540 all-in-one hybrid system. Pair an 18kW PV input hybrid inverter (200A pass-through) with an indoor/outdoor IP65 14.3kWh LiFePO4 WallMount battery—saving $12,000+ vs turnkey quotes.
- 18kW PV Input / 12kW Continuous AC Output (200A Pass-Through)
- 14.3kWh LiFePO4 (8,000+ cycles @ 80% DoD)
- UL9540 & UL1741-SB Certified for Permit Approval
EcoFlow Delta Pro Ultra (6kWh–30kWh Modular)
Skip the $30,000 contractor quote and 6-month utility interconnection wait. Delivers 7.2kW–21.6kW continuous 120V/240V split-phase output and 5.6kW Solar Input right out of the box—expandable up to 90kWh.
- 7,200W–21,600W 120V/240V Split-Phase Output
- 6.1kWh LFP Stackable Battery (scales to 30kWh–90kWh)
- 5,600W Solar Input — Zero Roof Permit Required for Portable PV
Renogy 48V Off-Grid & Hybrid LFP Solar Kit
Complete modular 48V architecture combining high-efficiency N-type bifacial panels, a 48V 3,500W–5,000W MPPT inverter-charger, and smart modular LiFePO4 storage at ~$1.15/W hardware cost.
- 48V High-Efficiency Bus (75% lower copper wire loss)
- Modular 48V 50Ah / 100Ah Smart LiFePO4 Battery Bank
- Complete Plug-and-Play MPPT All-in-One Controller
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