City of Mendota

A city address is usually permitted by the city, not the county — but not always, and some authorities keep building and hand electrical to someone else. Getting this wrong costs the whole submittal, because every requirement below belongs to whoever actually holds jurisdiction. Check the overlays in the same pass: an HOA, a historic district, a windstorm certification or a system-size cap can reshape the design, and all of them are cheaper to find now than after the array is laid out.

• Is this authority the AHJ for residential solar at this address? Yes 95% · department page
• What does this authority permit itself, and what does it delegate? Both 85% · permit application (own document)
• Is a permit required for a residential rooftop PV system? Yes 92% · department page
• Is there a separate electrical permit, or is it combined? Combined 80% · permit application (own document)
• Is a wind or windstorm certification required? No — California does not use a Texas-DOI/TDI-style windstorm certification scheme for residential construction, and no Mendota-specific analog (e.g. a wind-speed engineering certificate) was found in any of the city's solar or building documents. 60% · published checklist (absence) + general CA practice
• Is a Specific Use Permit or Council approval ever required? Not for a standard residential rooftop PV system. Nothing in the city's Planning Master Application, SolarAPP+ page, or Solar Standard Plan documents routes rooftop solar to a Conditional/Specific Use Permit or City Council hearing; the Planning Master Application's CUP/Variance/Rezone checkboxes are generic development-review categories with no solar carve-in or carve-out mentioned. This is consistent with the statewide ministerial-permitting mandate for small residential rooftop solar under Gov. Code §65850.5/§65850.52. 60% · published application (absence, inferred)
• Is there a system-size cap on residential generation? No absolute cap on residential system size is published. The city's own pre-approved 'Solar PV Standard Electrical Plan' templates (both Central Inverter and Microinverter versions) are scoped to systems not exceeding 10kW AC output on a 3-wire, ≤225A, 120/240V service — beyond that scope (or with batteries, power optimizers, or transformer-less/micro inverters mismatched to the wrong template), the document states 'Electrical Plan review is required,' i.e. routed to full plan check rather than prohibited. The SolarAPP+ eligibility page separately states 'No maximum size limit is stated in this document; see help.solar-app.org for details.' 82% · published checklist (own document)

Several authorities require the electrical permit to be pulled by a licensed electrician, or require the contractor to be registered with them BEFORE applying. Registration is not same-day. This is second on the list rather than fourth because it is the step most likely to stop the job before the drawings matter.

• Who is allowed to pull the electrical permit? Either 82% · permit application (own document)
• Is a homeowner permitted to self-install and self-permit? Yes 80% · permit application (own document)

Almost everywhere wants a site plan, a one-line or three-line electrical diagram, equipment cut sheets with listings, and a structural attachment detail. Build it against the published checklist rather than the last jurisdiction you worked in — the checklist is what the reviewer marks against.

• What documents make up a complete submittal? For the standard (non-SolarAPP+) rooftop path: the city's own 'Solar PV Standard Electrical Plan' (Central Inverter or Microinverter version, chosen by system type), filled in with module/inverter nameplate data, string/conductor counts and sizing calculations, plus 'ALL system installation instructions' to be provided alongside it, plus a roof plan showing equipment/disconnect locations and clearances, plus the general Building Permit Application with owner/contractor/valuation information. For SolarAPP+-eligible systems: the SolarAPP+ online submittal (contractor license, project and system data) plus the resulting Approval Document/Inspection Checklist emailed to the Building Department. 90% · published application/checklist (own document)
• Is a site plan required, and what must it show? Yes. For general building permits, the city's Plot Plan Sample (Building Permit Application, p.4) requires: lot lines and measurements, all existing/proposed structures and any to be demolished, easements, dimensions and distances between structures and to property lines, driveway location/changes, north arrow, and frontage/adjacent street labels for corner lots. For rooftop PV specifically, the Solar Standard Plan documents additionally require a roof plan 'showing location of all equipment, disconnecting means and required clearances.' 92% · published checklist (own document)
• Is a one-line / three-line diagram required? Yes 88% · published checklist (own document)
• Are string and conductor calculations required? Yes 95% · published checklist (own document)
• Is an electrical PE stamp required, and at what threshold? No explicit PE-stamp threshold is published. Systems that fit within the scope of the city's own pre-engineered 'Solar PV Standard Electrical Plan' (≤10kW AC output, ≤225A 120/240V 3-wire service, crystalline modules, central or micro-inverter, no batteries/power optimizers) can be permitted using that template without an engineer's stamp. The documents state only that systems exceeding this scope require 'Electrical Plan review' — that phrase is not defined as requiring a PE stamp specifically, just full plan check. 55% · published checklist (own document, inferred)

Most authorities now take the whole application through a portal, and several states cap or constrain what a residential solar permit may cost. Check whether plan check is billed separately before you quote the job.

• Which permit portal does this authority use? SolarAPP+ (gosolarapp.org) for eligible residential rooftop PV; for non-eligible or standard submittals, applicants go through the Building Department directly by email (buildingdepartment@cityofmendota.com) or in person at 643 Quince St. No separate general e-permitting portal (e.g. Accela, OpenGov) was found anywhere on the city's site. 90% · portal landing page (own document)
• Can the whole application be completed online? Yes, for SolarAPP+-eligible systems (fully online via gosolarapp.org, per the city's own 4-step process). Non-eligible systems route through email/in-person submittal to the Building Department, which is not a self-service online application. 85% · portal (own document)
• What does a residential solar permit cost? No PV-specific flat fee is published. The city's only located fee document — the 2010 Planning, Engineering & Building Fee Schedule (Ord. Res. 10-07, rates effective 24 Apr 2010) — has no solar/PV line at all; a residential PV permit would be charged off its general 'New Construction' valuation table (e.g., a system valued at $20,000 would fall in the '$2,000.01–$25,000.00' tier: $69.25 for the first $2,000 plus $14.00 per additional $1,000 ≈ $321.25), plus a separate plan-review fee. 50% · fee schedule (own document, OCR'd)
• How is the fee calculated? Valuation 65% · fee schedule (own document, OCR'd)
• Is there a separate plan-check fee? Yes 80% · fee schedule (own document, OCR'd)

Interconnection is a separate process from the permit and usually the longer pole. Where the utility does not depend on the permit being issued, running both at once is the single biggest saving available on a residential job.

• What is the stated plan-review turnaround? Not stated for the standard path. For SolarAPP+-eligible systems, review is effectively automated/near-instant once the online eligibility and contractor-license checks pass (per the platform's normal operation and the city's own 4-step SolarAPP+ process, which moves straight from submittal to emailing the Building Department the approval document). 62% · department page (partial)
• Which utility handles interconnection here? Pacific Gas and Electric Company (PG&E) 82% · utility tariff / service territory map
• Where does the utility sit in the sequence? After permit 70% · utility process page

The NEC edition a jurisdiction enforces is often a cycle behind the newest one published, and local amendments sit on top of it. Rapid shutdown, conductor sizing and labelling all change between editions, so the edition in force is the first thing to establish, not the last.

• Which fire code edition is in force? 2025 California Fire Code (Cal. Code Regs. Title 24, Part 9) 75% · adopting ordinance (fire AHJ's own document)
• Are there local amendments to any of the above? Yes, on the fire side: FCFPD's Ordinance 2025-04 amends nine sections/appendices of the 2025 CFC (§101.1 jurisdiction name, §104.9.2 policy-compliance clause, §113.4 penalty amounts, §507.2.3 reservoir standards, §5704.2.9.6.1/§5706.2.4.4/§6104.2 tank-storage-limit language, Appendix A board-of-appeals procedure, and Appendix R — a utility-scale photovoltaic/battery-energy-storage fire-impact mitigation fee schedule for grid-scale solar farms, not residential rooftop PV). None of these amendments touch residential rooftop-PV ridge setbacks, pathways, or rapid shutdown. Whether the City of Mendota's own building/electrical code adoption carries local amendments could not be confirmed (Municode inaccessible, as in Q29/Q30). 68% · adopting ordinance (fire AHJ's own document)
• What is the installation judged against? A residential PV installation in Mendota is judged against: (1) the city's own 'Solar PV Standard Electrical Plan' (Central Inverter or Microinverter version) for systems within its 10kW AC / 225A scope, or full Electrical Plan review otherwise; (2) whatever edition of the California Building/Residential/Electrical Code the city has adopted by reference (not independently confirmed this session — see Q29/Q30); and (3) for fire, the 2025 California Fire Code as adopted and locally amended by Fresno County Fire Protection District (Ord. 2025-04). 58% · composite (own documents + fire AHJ ordinance)

Ridge setbacks and roof access pathways are fire-service requirements and they constrain the array layout. They are the most common cause of a redesign after the fire department comments on a plan set.

• What ridge setback and access pathways are required? Not established by either potential AHJ for residential rooftop PV. The city's own solar documents are purely electrical and contain no ridge-setback or fire-access-pathway language, and Fresno County Fire Protection District — which serves Mendota by name for fire — has zero PV/solar/battery category anywhere in its current (1 Jul 2026) Protection & Planning Fee Schedule or its Fire Permit Application submittal-type list, and its 2025 CFC local amendments (Ord. 2025-04) do not touch residential PV pathways/setbacks at all. 68% · fire AHJ's own documents (control-proven absence)

Which rapid-shutdown rule applies follows directly from the NEC edition in force, and the initiation device has to be at a location the fire service can reach and identify. This is inspected, and it is labelled.

• Is rapid shutdown required, and to which NEC edition? Not addressed in the city's own current solar documents, which predate rapid shutdown. Both the 'Solar PV Standard Electrical Plan – Central Inverter' and '– Microinverter' documents state verbatim that they address 'only the requirements of the 2010 California Electrical Code (CEC)' and contain zero occurrences of 'rapid shutdown' or CEC/NEC §690.12 (grep'd across the full OCR'd text of both 9-page documents, with a passing positive control of 26 hits on other '690.x' section citations and 0 hits on a fabricated 'zzqqx' control). The 2010 CEC predates NEC/CEC §690.12 rapid-shutdown provisions entirely (first introduced in the 2014 NEC / 2016 CEC), so these are stale templates on this point. Whatever edition of the CEC the city has actually and currently adopted (not independently confirmed — see Q29) would still require rapid shutdown as a matter of state law regardless of what these handouts say; field inspectors likely still enforce it even though the department's own written guidance has not been updated. 68% · published checklist (own document, control-proven)

The NEC sets a baseline for permanent markings at the service equipment and the disconnecting means. On top of that, an authority may specify its own wording, and the utility may specify more again. Where any of them writes its own text, a generic off-the-shelf label set will not pass — this is the detail most often fixed on a return visit.

• Which placards does this authority require at the service equipment? At the PV DC disconnecting means: a permanent label showing rated max power-point current, rated max power-point voltage, maximum system voltage, and PV short-circuit current (CEC §690.53 wording, on a 'phenolic plaque with contrasting colors'). At/near the AC output/interconnection point: a 'PV SYSTEM AC DISCONNECT' placard (rated AC output current, AC normal operating voltage, §690.54), a 'DUAL POWER SOURCES' warning placard, an 'ELECTRIC SHOCK HAZARD' warning at the inverter, and (where the backfed OCPD is not at the opposite end of the main breaker) a 'WARNING INVERTER OUTPUT CONNECTION – DO NOT RELOCATE THIS OVERCURRENT DEVICE' label (§690.64(B)(7)/705.12(D)(7)). A permanent exterior-mounted directory/plaque is also required showing the location of the service disconnect and the PV system disconnect if not co-located. 90% · published checklist (own document)
• Does the authority specify placard wording of its own? Yes 92% · published checklist (own document)
• Does it specify letter height, colour or material? Letter height: minimum 20-point type (≈⅜ inch), stated for both the DC-disconnect power-source label and the exterior directory/plaque. Colour/material: 'a phenolic plaque with contrasting colors between the text and background' meets the intent of the code — i.e. high contrast is required but no single mandated colour scheme (e.g. red/white) is specified in the text. 85% · published checklist (own document)
• Is a site plan / facility map placard required, and what must it show? Yes. A permanent plaque or directory must be installed (mounted on the exterior of the building) providing the location of the service disconnecting means and the PV system disconnecting means, if not installed at the same location. 85% · published checklist (own document)
• Where must the labels be placed? DC disconnect label: at the PV DC disconnecting means. AC/system labels: at the PV system AC disconnect / point of interconnection, and (for the exterior directory/plaque) mounted on the exterior of the building, at the same location as the main service disconnect where possible. The AC wiring sequence in the city's own document runs inverter(s) → [solar load center] → utility performance meter (if required) → utility safety disconnect switch → house electrical panel, which is where the corresponding placards attach. 80% · published checklist (own document)

Where the AC disconnect must sit relative to the meter is usually the utility's rule, not the building department's. Battery storage frequently carries its own permit, its own inspection and its own fire conditions.

• Where must the AC disconnect be, relative to the meter? Downstream of the utility's performance meter and upstream of the house's main electrical panel. The city's own Standard Electrical Plan describes the sequence: inverter(s) output → (a 'solar load center' collecting multiple central-inverter circuits, if applicable) → utility performance meter (if required by the local utility) → utility safety disconnect switch (if required) → point of interconnection at the house electrical panel; 'No electrical loads shall be connected between the output of the inverter and the connection to the house electrical panel.' 80% · published checklist (own document)
• Must equipment be on a specific approved list? Yes 90% · published checklist (own document)
• Are batteries permitted, and under what conditions? Batteries are not addressed by any dedicated Mendota ordinance or fee line found; they are explicitly excluded from the scope of the city's own pre-approved Standard Electrical Plan templates ('This plan is NOT intended... for systems containing batteries or power optimizer' / 'This plan is not intended for systems containing batteries'), meaning a battery-equipped system cannot use the streamlined standard-plan path and instead requires full Electrical Plan review. No separate city or Fresno County Fire Protection District battery/ESS ordinance, fee, or permit type was found (FCFPD's current fee schedule and fire-permit submittal-type list both control-checked with zero battery/ESS/energy-storage hits, apart from an unrelated fire-alarm-panel battery-backup line). 75% · published checklist (own document) + fire AHJ absence
• Is there a separate ESS permit or inspection? No dedicated ESS permit or inspection type is published by either agency. The City's Standard Electrical Plan documents simply exclude battery systems from their scope (routing them to ordinary Electrical Plan review, not a distinct ESS permit), and Fresno County Fire Protection District's own Fire Permit Application submittal-type checklist (Plans for Fire Apparatus Access/Site Water Supply, Building Final, Underground Water Delivery, Fire Pump, Commercial/Residential Fire Sprinkler, Clean Agent System, Hood Suppression, Fire Alarm, Other) has no battery/ESS category at all. 72% · fire AHJ's own document (control-proven absence) + city documents

Booking is a portal, a phone call or an email depending on the authority, and the notice required is rarely zero. Book before the work is finished rather than after — the lead time, not the work, is usually what sets the date.

• How is an inspection booked? Phone or Portal 88% · department page (embedded booking form, own document)
• How much notice is required? Effectively next business day. The city's own online inspection-request form states: 'Please note any inspection requests made after 12:00 a.m. will be for the following business day' — this phrasing is almost certainly intended as a cutoff time (compare Madera's near-identical 4:00 p.m./next-business-day pattern) but is quoted here exactly as published, since the literal text is ambiguous. 68% · department page (embedded booking form, own document)
• Are same-day or AM/PM windows offered? Yes — AM/PM windows are offered but no same-day guarantee. The online inspection-request form lets the applicant choose 'Morning' (8:00 a.m.–12:00 p.m.) or 'Afternoon' (1:00 p.m.–5:00 p.m.); its own help text states 'The Building Inspector will arrive within the selected time frame, based on their availability.' 90% · department page (embedded booking form, own document)

Some authorities inspect their own solar work; some delegate it, and a few do not inspect the PV equipment itself at all. Who is coming determines what they will look at.

• Does this AHJ perform its own final solar inspection? Yes 90% · department page (own document)
• If delegated, to whom? N/A — not delegated; the City of Mendota's own Building Inspector performs the final solar inspection. 90% · department page (own document)

A rough-in or mid-roof inspection, where one is required, has to happen before the work it covers is closed up. Missing a stage means opening something back up, and it is the most expensive kind of correction.

• Which inspections are required, and in what order? The city's general 'Required Inspections' handout lists the standard sequence for new construction (plumbing underground, foundation/setback, slab/under-floor, roof deck & shear sheathing, frame, lath/gypsum-board, wall insulation, final), but a straightforward rooftop PV retrofit on an existing home would not trigger most of those (no new foundation, framing, etc.). Consistent with that, the Solar Central Inverter and Microinverter Standard Electrical Plan documents describe only a single site visit — 'Provide this document to the inspector along with ALL system installation instructions' — implying one consolidated final electrical inspection for a standard rooftop PV job rather than a staged sequence. 55% · published checklist (own document, inferred for solar)
• Is a rough-in or mid-roof inspection required? No, for a standard rooftop PV retrofit — no dedicated rough-in or mid-roof inspection stage is described anywhere for solar specifically; the general Required Inspections list's 'roof deck and shear sheathing' step applies to new roof construction, not an existing-roof PV overlay. 50% · published checklist (absence, inferred)

The approved plan set, the permit, and the equipment listings should be on site and reachable. Inspectors routinely verify that installed equipment matches what was approved, and that the labels are the ones the plan set promised.

• Is there a published inspection checklist? Yes 85% · published checklist (own document)
• What must be on site at inspection? The completed Solar PV Standard Electrical Plan (Central Inverter or Microinverter version, as applicable) together with all manufacturer system-installation instructions, plus the standard building-permit inspection card/approved plans; for a SolarAPP+ job, the printed SolarAPP+ Approval Document and Inspection Checklist. 85% · published checklist (own document)
• Does the inspector verify labels and listings? Likely yes, though not stated as an explicit checklist item. The field inspector is handed the completed Solar Standard Electrical Plan (with filled-in module/inverter make, model, and listing-dependent fields) 'along with ALL system installation instructions,' which would put listed-equipment identification directly in front of the inspector at the time of inspection, and the plan itself repeatedly requires equipment to be listed/labeled by a recognized testing agency. 55% · published checklist (own document, inferred)

Passing gives you a final or an equivalent sign-off. That is not the same as permission to operate: PTO comes from the utility, and who tells the utility the inspection passed varies. A system left switched off for weeks is usually waiting on this handover.

• What is issued on pass? Final (sign-off on the building-permit inspection card) 45% · published checklist (own document, inferred)
• Who notifies the utility for PTO? Installer 78% · utility process page
• Is there a re-inspection fee? $65.00 per hour, $100.00 minimum 70% · fee schedule (own document, OCR'd)