How solar panels permits work in Herriman
The permit itself is typically called the Residential Building Permit + Electrical Permit (Solar PV).
Most solar panels projects in Herriman pull multiple trade permits — typically building and electrical. Each is reviewed and inspected separately, which means more checkpoints, more fees, and more coordination between the trades on the job.
Why solar panels permits look the way they do in Herriman
Herriman sits in an Earthquake-Prone zone on the Wasatch Front requiring SDC-D seismic design on most new residential structures. Expansive bentonite clay soils in many subdivisions require engineered foundations — grading and soils reports are routinely required. Rapid subdivision growth means many lots are still platted as new developments, requiring project-specific dry-utility coordination with Rocky Mountain Power and Dominion. Wildland-Urban Interface (WUI) fire codes apply across much of the city's southern and western foothills.
For solar panels work specifically, wind, snow, and seismic loads on the roof structure depend on local conditions: the city sits in IECC climate zone CZ5B, frost depth is 30 inches, design temperatures range from 8°F (heating) to 95°F (cooling).
Natural hazard overlays in this jurisdiction include earthquake seismic design category D, expansive soil, radon, wildfire, and FEMA flood zones. If your address falls within any of these overlay zones, the solar panels permit application picks up an extra review step that can add days to the timeline and specific design requirements to the plans.
HOA prevalence in Herriman is high. For solar panels projects this matters because HOA architectural review committee approval is a separate process from the city building permit, and the two have completely different rules. The HOA reviews materials, colors, and aesthetics; the city reviews structural, electrical, and code compliance. You generally need both, and the HOA approval typically takes 2-4 weeks regardless of how fast the city is.
What a solar panels permit costs in Herriman
Permit fees for solar panels work in Herriman typically run $200 to $600. Typically valuation-based (project value × fee schedule rate); electrical permit often a separate flat fee of $75–$150; plan review fee may be charged separately at ~65% of permit fee
Utah imposes a state-level building permit surcharge; Herriman may also charge a technology/records fee; confirm current fee schedule at herriman.utah.gov or by calling (801) 446-5323.
The fee schedule isn't usually what makes solar panels permits expensive in Herriman. The real cost variables are situational. RMP net billing at avoided-cost (~3–4¢/kWh) makes oversizing uneconomic, so battery storage (adds $8K–$15K) is often needed to capture full value of generation. HOA architectural review fees, required module color/frame matching, and potential redesign rounds add $500–$1,500 and 2–4 weeks before permit submittal. Structural engineering letter or full roof loading calc required by inspector on many fast-built post-2010 tract homes with non-standard trusses, adding $400–$900. Module-level rapid shutdown devices (optimizers or microinverters) required under NEC 2023 Article 690.12, adding $500–$1,200 vs string inverter-only systems.
How long solar panels permit review takes in Herriman
5–15 business days for plan review; expedited review may be available for simple residential rooftop arrays. There is no formal express path for solar panels projects in Herriman — every application gets full plan review.
The Herriman review timer doesn't run until intake confirms the package is complete. Anything missing — a survey, a contractor license number, an HIC registration — sends the package back without a review queue position.
The specific codes that govern this work
If the inspector cites a code section, this is the list they'll most likely be referencing. These are the live code references that Herriman permits and inspections are evaluated against.
NEC 2023 Article 690 (PV systems — adopted by Utah effective 2023)NEC 2023 Article 705 (interconnected power production sources)NEC 690.12 (rapid shutdown — module-level power electronics now standard at Herriman's AHJ)IFC 605.11 (rooftop access pathways: 3 ft from ridge, valleys, and array borders)IECC 2021 + Utah amendments (does not restrict solar but informs roof assembly R-values that affect racking penetration sealing requirements)Utah Code 57-8a-211 (HOA solar access protection — HOA may not prohibit but may require reasonable aesthetic compliance)
Utah has adopted the 2023 NEC statewide; Herriman enforces module-level rapid shutdown (NEC 690.12) strictly. Utah amended the 2021 IECC primarily on energy compliance paths — no known solar-specific local amendments, but confirm at herriman.utah.gov.
Three real solar panels scenarios in Herriman
What the rules look like in practice depends a lot on the specific situation. These three scenarios cover the common shapes of solar panels projects in Herriman and what the permit path looks like for each.
Utility coordination in Herriman
Rocky Mountain Power (1-888-221-7070 or via wattsmart.com) requires a formal interconnection application for all grid-tied systems; RMP's net billing tariff (Schedule 135) applies in Herriman — excess generation is credited at avoided-cost (~3–4¢/kWh), not retail rate, so system sizing must be carefully matched to on-site consumption.
Rebates and incentives for solar panels work in Herriman
Some solar panels projects qualify for utility rebates, state energy program incentives, or federal tax credits. The most relevant programs in this jurisdiction are listed below — eligibility depends on equipment efficiency ratings, contractor certification, and post-installation documentation, so verify specifics before purchasing.
Federal Investment Tax Credit (ITC) — 30% of installed system cost as tax credit. New residential PV systems; credit applies to equipment and installation labor; claimed on IRS Form 5695. irs.gov/credits-deductions/residential-clean-energy-credit
Rocky Mountain Power Wattsmart / Net Billing — Ongoing bill credit at avoided-cost rate (~3–4¢/kWh for exports). All RMP interconnected residential solar customers in Utah; Schedule 135 net billing, not full retail net metering. wattsmart.com
Utah Renewable Energy Systems Tax Credit — Up to $1,600 (25% of cost, capped). Utah state income tax credit for residential solar PV; verify current cap and eligibility at tax.utah.gov as program details may have changed. tax.utah.gov
The best time of year to file a solar panels permit in Herriman
Spring (March–May) and fall (September–October) are optimal install windows — shoulder season avoids summer thunderstorm delays and winter roof-ice conditions; winter installs are feasible given Herriman's moderate snowfall, but snow removal of panels during inspection access can add cost; summer backlog at Herriman's building department is highest (May–August) due to new-construction volume, so plan review can push toward 15 business days.
Documents you submit with the application
For a solar panels permit application to be accepted by Herriman intake, the submission needs the documents below. An incomplete package is returned without going into the review queue at all.
- Site plan showing array location, setbacks from roof edges, and access pathways (3-ft min per IFC 605.11)
- Electrical single-line diagram stamped by licensed Utah S210/S220 electrical contractor showing inverter, rapid shutdown, disconnect, and interconnection point
- Structural/racking manufacturer cut sheets and, for roofs over 10 years old or flagged by inspector, engineer-stamped roof loading calculation
- Rocky Mountain Power interconnection application approval letter or confirmation of application submittal
- HOA architectural approval letter (if applicable — required before city permit in most Herriman subdivisions)
Who is allowed to pull the permit
Homeowner on owner-occupied with signed owner-builder acknowledgment form; however, electrical work must be performed by or directly supervised by a Utah-licensed electrical contractor (S210/S220) — most solar installers pull the permit themselves
Utah DOPL Electrical Contractor license S210 (master) or S220 (journeyman under master) required for all electrical scope; solar contractor should also carry Utah Division of Corporations registration; verify at dopl.utah.gov
What inspectors actually check on a solar panels job
A solar panels project in Herriman typically goes through 3 inspections. Each inspector has a specific checklist, and the difference between a same-day pass and a re-inspection (which costs typically $75–$250 in re-inspection fees plus another scheduling delay) usually comes down to one or two items on these lists.
| Inspection stage | What the inspector checks |
|---|---|
| Rough Electrical / Racking | Roof penetrations sealed and flashed, racking properly attached to structural rafters, conduit routing per plans, rapid-shutdown initiation device installed at service entrance |
| Electrical Rough-In | DC and AC wiring separated or in separate conduits, conductor sizing per NEC 690, inverter location and clearances, grounding/bonding per NEC 690.47 |
| Final Building + Electrical | Array matches approved plan, module-level rapid shutdown functional, AC disconnect labeled and lockable, utility interconnection agreement in hand, all conduit and junction boxes properly covered and labeled |
When something fails, the inspector documents specific code references on the correction sheet. You correct the items, request a re-inspection, and pay any associated fee. The solar panels job stays in suspended state until the re-inspection passes — which is why catching things on the first walkthrough saves both time and money.
The most common reasons applications get rejected here
The Herriman permit office sees the same patterns over and over. These specific issues account for most first-pass rejections, and most of them are entirely preventable with a few minutes of double-checking before submission.
- Rapid shutdown non-compliant — older microinverter or optimizer firmware not meeting NEC 690.12 module-level requirements as enforced under 2023 NEC
- Roof access pathways insufficient — array layout does not preserve 3-ft clear path from ridge and eave per IFC 605.11 (common on smaller Herriman rooflines)
- Structural calculations missing or inadequate — inspector flags older or non-standard truss systems in fast-built tract homes for engineer review before approval
- Rocky Mountain Power interconnection agreement not finalized — final inspection cannot close without RMP approval documentation in hand
- HOA approval letter absent from permit packet — city may flag application as incomplete if subdivision is known HOA community
Mistakes homeowners commonly make on solar panels permits in Herriman
The patterns below come up over and over with first-time solar panels applicants in Herriman. Most of them are rooted in assumptions that work fine in other jurisdictions but don't here.
- Assuming HOA approval is optional — Utah Code 57-8a-211 protects solar rights but does not eliminate HOA aesthetic review; skipping HOA approval before permitting causes costly restarts
- Oversizing the array to 'bank' credits under what they believe is net metering — RMP's Schedule 135 net billing pays exports at ~3–4¢/kWh, so a 12 kW system on a 6 kW load home generates hundreds of dollars in wasted overcapacity annually
- Signing a solar lease or PPA contract without understanding that RMP interconnection approval (not just city permit) controls the energization date — RMP processing can add 4–10 weeks
- Ignoring rapid shutdown compliance — some door-to-door solar contractors in the SLC metro are still quoting string-only systems that do not meet NEC 2023 690.12 as enforced by Herriman's AHJ, causing failed inspections
Common questions about solar panels permits in Herriman
Do I need a building permit for solar panels in Herriman?
Yes. Any rooftop or ground-mounted PV system requires a Herriman City building permit plus a separate electrical permit. Utah state law (Utah Code 57-8a-211) limits HOA restrictions on solar but cannot waive city permitting requirements.
How much does a solar panels permit cost in Herriman?
Permit fees in Herriman for solar panels work typically run $200 to $600. The exact fee depends on the project valuation and which trade subcodes apply. Plan review and re-inspection fees are sometimes assessed separately.
How long does Herriman take to review a solar panels permit?
5–15 business days for plan review; expedited review may be available for simple residential rooftop arrays.
Can a homeowner pull the permit themselves in Herriman?
Yes — homeowners can pull their own permits. Utah allows owner-builders to pull their own permits for owner-occupied single-family residences, with signed owner-builder acknowledgment forms typically required. Subcontractors (electrical, plumbing, HVAC) must still be licensed.
Herriman permit office
Herriman City Building Department
Phone: (801) 446-5323 · Online: https://herriman.utah.gov
Related guides for Herriman and nearby
For more research on permits in this region, the following guides cover related projects in Herriman or the same project in other Utah cities.