Del Norte County

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 — Del Norte County is the AHJ for residential solar on parcels in the unincorporated area (not Crescent City, which is a separate incorporated city with its own building department) 92% · fee schedule
• What does this authority permit itself, and what does it delegate? Both — the Building Inspection Division of the Community Development Department issues both building and electrical permits itself; nothing is delegated to a separate agency 92% · department page
• Is a permit required for a residential rooftop PV system? Yes 95% · ordinance / department page
• Is there a separate electrical permit, or is it combined? Effectively combined — one PV permit fee line ('plan check & inspection') covers the system, though the expedited page refers to 'the building and electrical permits' (plural) being issued together as one package 60% · fee schedule
• Is a HOA or architectural approval required first? No 92% · ordinance (OCR'd, image-only PDF)
• Is there a historic-district review? Conditional — only for parcels within the county's Historic (H) overlay zone, where exterior alterations require Historic Review Board approval before a permit can issue; not a countywide requirement for solar generally 55% · secondary source describing zoning overlay
• Is a wind or windstorm certification required? No 80% · department page (absence)
• Is a Specific Use Permit or Council approval ever required? Conditionally — only if the Building Inspection Division makes written findings, based on substantial evidence, that the proposed system could have a specific adverse impact on public health and safety, in which case a use permit under Title 20 (inland) or Title 21 (coastal) is required; not required for a routine expedited-eligible system 88% · ordinance (OCR'd, image-only PDF)
• Is there a system-size cap on residential generation? No absolute countywide cap — but the streamlined/expedited review path only applies to systems 'no larger than 10 kilowatts alternating current nameplate rating or 30 kilowatts thermal' on a single/duplex dwelling; larger residential systems are still permittable but must go through standard (non-expedited) plan review 85% · ordinance (OCR'd, image-only PDF)

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 — a licensed contractor, or the homeowner as owner-builder 80% · permit application form
• Must the contractor be registered with this authority before applying? No 55% · department page
• Is a homeowner permitted to self-install and self-permit? Yes 80% · permit application form

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? Building Permit Application; Building Permit Checklist (items relevant to project); Eligibility Checklist for Expedited Residential Solar Photovoltaic Permitting; Solar Panel PV Standard Plan for 1- and 2-Family Dwellings (with manufacturer spec sheets for inverter/modules/combiner boxes/racking, single-line diagram, and roof layout diagram) 92% · department page + checklist
• How many copies, and in what format? General Building Permit Checklist calls for 3 complete sets of construction plans and 4 copies of an 8.5x11 plot plan; County Code §14-17.40(A) separately authorizes electronic submittal (email) with e-signatures accepted in lieu of a wet signature 70% · published checklist
• Is a site plan required, and what must it show? Yes — a plot plan showing distances to property lines/existing structures (general checklist), plus a PV-specific roof layout diagram showing panel/module locations, clear access pathways, and approximate locations of electrical disconnects and roof access points 88% · checklist / standard plan
• Is a one-line / three-line diagram required? Yes 95% · standard plan
• Are string and conductor calculations required? Yes 95% · standard plan
• Is a structural PE stamp required, and at what threshold? Discretionary, no published numeric threshold — the Building Inspection Division 'may require' new foundation/structural plans to be stamped by a CA-licensed engineer or architect for residential work (mandatory only for commercial); the Eligibility Checklist separately calls for 'Structural Criteria and supporting documentation... if required' without stating a size trigger 60% · published checklist

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? No dedicated online permit portal identified — applications are submitted by email or in person to the Building Inspection Division (building@co.del-norte.ca.us) 75% · department page
• Can the whole application be completed online? No — there is no self-service online portal (no online payment or status tracking found), though electronic submittal by email with e-signatures is explicitly authorized 75% · ordinance (OCR'd, image-only PDF)
• What does a residential solar permit cost? $130 flat (plan check & inspection combined) for residential roof-mounted PV up to 20 kW AC; $260 flat for 21 kW AC and over 88% · fee schedule
• How is the fee calculated? Tiered — a flat fee per kW-AC tier (not valuation-based, unlike the general building-permit fee table) 88% · fee schedule
• Is there a separate plan-check fee? No 75% · fee schedule

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? Usually 1 to 3 days for expedited-eligible systems 88% · department page
• How long is an issued permit valid before it expires? 180 days — the permit becomes null and void if work does not commence within 180 days, or is abandoned for 180 days with no inspections 92% · permit application form
• Which utility handles interconnection here? Pacific Power (PacifiCorp) 80% · utility source
• Where does the utility sit in the sequence? Parallel / No dependency at the county-permit stage — the county issues the building/electrical permit independent of utility approval, but the applicant must separately obtain the utility's interconnection approval before energizing 70% · ordinance (OCR'd, image-only PDF)

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 NEC edition is in force? 2023 NEC (as the California Electrical Code, Title 24 Part 3) applies by default statewide adoption — the California Building Standards Commission's list of locally filed ordinances shows NO amendment ordinance on file for Del Norte County for the 2022 code cycle, meaning the county has not opted out of or delayed the state's standard code cycle 55% · state code-adoption filing list
• Which building code edition is in force? By default, the current state code cycle applies (2022 CBC effective 2023, transitioning to the 2025 CBC effective 1 Jan 2026) because no local amendment ordinance is on file with CBSC for Del Norte County — HOWEVER the county's own Building Inspection Division webpage text still explicitly states '2019 California Building Code,' which predates the current mandatory cycle by two full code cycles. This is flagged as a stale-page finding, not a confirmed local adoption of 2019. 50% · department page (stale, per own text)
• Are there local amendments to any of the above? No local amendment ordinance is on file with the state for the current building code cycle 65% · state code-adoption filing list
• What is the installation judged against? The state-adopted California Building Standards Code parts as codified into the county's own fee schedule: California Building Standards Administrative Code (Title 24 Pt.1), CBC (Pt.2), CEC/California Electrical Code (Pt.3), Mechanical (Pt.4), Plumbing (Pt.5), Energy (Pt.6), Historical Building Code (Pt.8), Building Conservation (Pt.10), Reference Standards (Pt.12), plus the Uniform Housing Code 80% · fee schedule

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.

Nothing recorded for Del Norte County on this step yet — 1 question checked and found unpublished. The guidance above is general.

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? Rapid shutdown is not separately addressed in the county's own Solar PV Standard Plan text; it would be governed by whichever NEC/CEC edition is in force (NEC 690.12 rapid-shutdown has been mandatory since the 2017 NEC), which per q29 is inferred rather than confirmed locally 50% · standard plan

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? Per the Standard Plan's Markings page: (1) WARNING - inverter output connection / do-not-relocate OCPD label (CEC 705.12(D)(7)); (2) WARNING - DC conductors ungrounded/may be energized (CEC 690.35(F), ungrounded systems only); (3) WARNING: PHOTOVOLTAIC POWER SOURCE marking on junction/combiner boxes and conduit every 10 ft (CRC R331.2, CFC 605.11.1); (4) WARNING - dual power sources / PV rated AC output plaque (CEC 690.54, 705.12(D)(4)); (5) PV System AC Disconnect rating placard (CEC 690.54); (6) WARNING - ground-fault shock hazard (CEC 690.5(C)); (7) WARNING - do not touch terminals, both sides may be energized (CEC 690.17); (8) PV System DC Disconnect rating placard (CEC 690.53); (9) a permanent plaque/directory denoting all electric power sources on the premises (CEC 705.12) 90% · standard plan
• Does the authority specify placard wording of its own? No — the placard text reproduced in the standard plan is the wording required by the referenced CEC/CRC/CFC sections themselves, not custom county-authored wording 80% · standard plan
• Does it specify letter height, colour or material? Advisory only, not mandatory: the Standard Plan's informational note cites ANSI Z535.4 and suggests 'a phenolic plaque with contrasting colors between the text and background' and '20 point (3/8") should be considered the minimum' letter height — explicitly framed as guidance ('informational note'), not a mandatory county spec 85% · standard plan
• Is a site plan / facility map placard required, and what must it show? Yes — a Roof Layout Diagram is required showing the roof layout of all panels/modules, clear access pathways, and approximate locations of electrical disconnecting means and roof access points 88% · standard plan
• Where must the labels be placed? At the inverter output OCPD, the AC and DC disconnects, junction/combiner boxes, and along exposed conduit runs (marked at least every 10 feet) 85% · standard plan

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.

• Must equipment be on a specific approved list? Yes, in the general sense required by code — equipment must be listed and labeled for its application (CEC 690.4(D)) and installed per its listing/labeling instructions (CEC 110.3); this is a code requirement carried into the standard plan, not a distinct county-maintained approved-products list 75% · standard plan
• Are batteries permitted, and under what conditions? Systems WITH battery storage are excluded from the expedited/streamlined review path and must go through standard (non-expedited, comprehensive) permitting; no separate county-published battery/ESS submittal package was found 82% · published checklist
• Is there a local rule on service upgrades or busbar sizing? For the EXPEDITED review path only: system must interconnect to a single-phase 120/240 Vac service panel with a bus bar rating of 225 A or less, connected to the load side of the utility distribution equipment; this is an eligibility threshold for the streamlined process, not a blanket county-wide busbar rule for all PV installs 85% · published checklist

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.

Nothing recorded for Del Norte County on this step yet — 3 questions checked and found unpublished. The guidance above is general.

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 — the county performs its own final inspection and does not delegate it 90% · ordinance (OCR'd, image-only PDF)
• If delegated, to whom? Not delegated for the primary building/electrical inspection — county Building Inspection Division staff perform it directly. A separate fire-safety inspection MAY be performed by the local fire authority only if no interagency agreement exists for that authority to perform inspections on the county's behalf (implying that where such an agreement exists, fire items are covered within the county's own single inspection) 78% · ordinance (OCR'd, image-only PDF)

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? One combined final inspection is required for expedited-eligible small residential rooftop solar systems; a subsequent (re-)inspection is authorized if the system fails; a separate fire inspection may occur only absent an interagency agreement 82% · ordinance (OCR'd, image-only PDF)
• Is a rough-in or mid-roof inspection required? No 80% · ordinance (OCR'd, image-only PDF)

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.

Nothing recorded for Del Norte County on this step yet — 3 questions checked and found unpublished. The guidance above is general.

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.

• Who notifies the utility for PTO? Installer/applicant — the county's approval of the permit does not authorize grid connection; the applicant is responsible for obtaining that approval directly from the utility 85% · ordinance (OCR'd, image-only PDF)
• Is there a re-inspection fee? $61/hour, plus $61/hour beyond the first hour (fee schedule item 108.8) 80% · fee schedule
• How are corrections issued and cleared? A written correction notice detailing all deficiencies and any additional required information/documentation is sent to the applicant for resubmission 88% · ordinance (OCR'd, image-only PDF)