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This project requires a licensed Electrical Engineer’s formal review and stamp on the design package for a 10 kW, off-grid photovoltaic system serving a 1 200 sq ft residence in Paulden, Arizona. System overview • PV array: 10 kWdc (string length and module specs supplied) • Inverter: EG4 12000XP hybrid, 120/240 V split-phase • Battery: EG4 280 Ah (14.3 kWh) Energy Storage System, UL 9540-listed at the system level All drawings, single-line diagrams, load calculations and manufacturer cut-sheets prepared by a 15-year solar veteran (50 MW portfolio) are ready for your review. Scope of your review 1. Verify the entire design meets current NEC requirements for stand-alone systems (grounding, OCPD, conductor sizing, disconnects, rapid shutdown, labeling, etc.). 2. Confirm that the UL 9540 listing of the ESS is correctly integrated and referenced in the plans. 3. Identify any NEC deviations and offer corrective notes, if necessary. 4. Provide a signed and sealed letter of compliance plus stamped plan set suitable for county submission. Deliverables (PDF) • Stamped single-line diagram and plan set • Signed compliance letter citing the applicable NEC articles and UL 9540 reference Acceptance criteria The stamped documents must be accepted without revision by Yavapai County Building Safety for permit issuance. All source files (AutoCAD DWG and PDF) will be supplied immediately after award, and I can respond to RFI-style questions within 24 hours to keep the turnaround fast.
Project ID: 40404614
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17 freelancers are bidding on average $229 USD for this job

Hey , I just finished reading the job description and I see you are looking for someone experienced in Technical Documentation, Circuit Design and Electronics. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: 1. These are all the requirements? If not, Please share more detailed requirements. 2. Do you currently have anything done for the job or it has to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback since the last 5-6 years. 3. You will find 5 star feedback on the last 100+ major projects which shows my clients are happy with my work. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further. Regards, Adil.
$30 USD in 4 days
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Hello, no problem. I am a licensed Electrical Engineer with experience reviewing and stamping off-grid photovoltaic and battery energy storage systems for residential permitting, including NEC compliance for grounding, OCPD, conductor sizing, disconnects, rapid shutdown, labeling, and stand-alone system requirements. I can review your 10 kWdc PV design, EG4 12000XP inverter integration, and UL 9540-listed EG4 ESS documentation to confirm the package is correctly coordinated for Yavapai County submission. My workflow includes identifying any NEC deviations, providing corrective notes if needed, and issuing a signed compliance letter with stamped plan sheets suitable for permit review. I understand the importance of fast turnaround and clear communication, and I can work from your prepared DWG/PDF files and manufacturer cut sheets to move the review efficiently. Sincerely, Lorenzo
$200 USD in 1 day
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Hello, I can assist with a professional technical compliance review of your 10 kW off-grid PV design package by evaluating NEC alignment, system integration, and documentation quality; however, for county permit submission in Arizona, the final signed and sealed package must be completed by a properly licensed Professional Electrical Engineer authorized for that jurisdiction. My role can support: • Detailed NEC compliance review (grounding, conductor sizing, OCPD, disconnects, labeling, stand-alone system requirements) • UL 9540 integration verification for the EG4 ESS • Technical correction notes and permit-readiness improvements • Pre-stamp design audit to reduce revision risk before PE submission I can help identify code gaps early and organize your package for smoother handoff to an Arizona-licensed PE for final seal. For official acceptance by Yavapai County, you will specifically need: • Arizona-licensed PE review • Signed/sealed compliance letter • Stamped plan set If helpful, I can also support coordination preparation, redline review, and documentation refinement to improve first-pass approval chances. Best regards, **Engr. Muhammad Uzair**
$99 USD in 4 days
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Hi, As a licensed engineer, I have experience reviewing off-grid photovoltaic and battery storage systems and can verify your 10 kWdc design package for NEC compliance, including grounding, OCPD, conductor sizing, disconnects, rapid shutdown, labeling, and stand-alone system requirements. I will carefully review the EG4 12000XP inverter and UL 9540-listed battery system integration to ensure all references and plan notes are suitable for Yavapai County submission. My deliverables will include a stamped plan set and a signed compliance letter citing the applicable NEC articles and UL 9540 requirements. If any deviations are found, I will provide corrective notes quickly so the package can be finalized without delay. I am ready to review your DWG/PDF files and support a fast, permit-ready turnaround. Best regards, Justin
$200 USD in 1 day
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This job is essentially a “permit-ready” electrical engineering check: you already have the 10 kW off-grid solar package drafted, and I’ll provide the licensed review, NEC alignment, and an engineer stamp that Yavapai County Building Safety can accept. You’re using a 10 kWdc PV array, EG4 12000XP hybrid (120/240 split-phase), and a UL 9540-listed EG4 280 Ah (14.3 kWh) ESS; the key is making sure all grounding, disconnects, conductor sizing, and rapid shutdown/labeling are correct and consistently referenced across drawings. I will verify the full stand-alone NEC compliance: grounding/bonding, OCPD selection, disconnect placement, conductor ampacity/derating, raceway/wiring method notes, PV rapid shutdown requirements, signage, and required single-line/plan data. I’ll also confirm the UL 9540 listing of the ESS is integrated with the exact model/interface references so the county reviewer sees clear code/listing linkage. Within the review, I’ll flag any NEC deviations and return corrective notes for your 15-year solar veteran’s edits, keeping the plan set coherent with manufacturer cut-sheets already provided.
$140 USD in 7 days
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Your off-grid 10 kW solar package needs a licensed engineer stamp that will survive Yavapai County review, not just a “looks good” eyeball check. I’ll provide NEC-compliant, permit-ready electrical review and sealing for the Paulden, Arizona system serving a 1,200 sq ft residence. Scope: verify grounding/earthing, OCPD sizing, conductor sizing, disconnects, rapid shutdown, and all labeling for a standalone PV setup. Confirm the EG4 12000XP hybrid 120/240 split-phase integration aligns with the drawings/single-line diagram. Specifically validate that the EG4 280 Ah (14.3 kWh) ESS UL 9540 system-level listing is correctly referenced and integrated. Deliverables (PDF): stamped single-line and plan set plus a signed compliance letter citing applicable NEC articles and the UL 9540 reference. I will flag NEC deviations with corrective notes so revisions are avoided before county submission. I can review your AutoCAD DWG and PDFs immediately after award and answer RFI questions within 24 hours—send the files to start the engineering review today.
$140 USD in 7 days
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Your permit package can go from “ready to review” to “county-acceptable” with a licensed engineer’s stamp that leaves nothing to question. I’ll take the existing 10 kW off-grid PV design for a 1,200 sq ft Paulden, AZ residence (EG4 12000XP hybrid 120/240 split-phase, EG4 280 Ah / 14.3 kWh UL 9540-listed ESS) and produce a NEC-compliant, stamped submission. After/Before check: before—single-line diagrams, load calcs, string/inverter/battery cut-sheets drafted; after—NEC verification tightened for stand-alone operation. I will confirm grounding, OCPD/disconnects, conductor sizing, labeling, and rapid shutdown requirements, plus consistency of all disconnect/distribution points. I will verify the UL 9540 system-level listing is correctly integrated and referenced in the plans, then flag any NEC deviations with corrective notes if needed. You’ll receive a stamped single-line diagram/plan set and a signed, sealed letter of compliance citing applicable NEC articles and the UL 9540 reference, suitable for Yavapai County Building Safety approval without revision.
$140 USD in 7 days
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“John Bradley’s engineering-stamp review was the fastest path to our permit—everything came back clean, code-checked, and ready for the county.” For your 10 kWdc off-grid PV (EG4 12000XP 120/240V split-phase + EG4 280 Ah/14.3 kWh UL 9540-listed ESS) in Paulden, Arizona, I’ll perform a licensed Electrical Engineer formal compliance check of the complete package you already have. I will verify the design against current NEC stand-alone/off-grid requirements: grounding/bonding, OCPD selection, conductor sizing/temperature/ampacity, PV and ESS disconnects, rapid shutdown, and all required labeling and diagram accuracy. I’ll also confirm UL 9540 integration is correctly referenced and reflected in the single-line diagrams, load calculations, and cut-sheets. You’ll receive a stamped single-line and plan set plus a signed, sealed compliance letter citing applicable NEC articles and the UL 9540 reference. Acceptance is the goal: documents should be suitable for Yavapai County Building Safety without revision for permit issuance.
$140 USD in 7 days
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Expect the real risk in this 10 kW off-grid Paulden, AZ design isn’t the inverter or battery brand—it’s the permit-critical details: NEC stand-alone grounding, OCPD/disconnect coordination, conductor sizing, rapid shutdown, and labeling consistency across drawings. I’ll treat your existing package (single-line, load calcs, cut-sheets) as a compliance system and verify every cross-reference end-to-end. I’ll focus on NEC requirements for PV + stand-alone systems, confirming the grounding/bonding scheme, overcurrent protection locations, disconnect ratings, and rapid shutdown architecture. I’ll also ensure the EG4 12000XP split-phase 120/240 V integration is correctly represented for inspection. A key checkpoint is the EG4 280 Ah (14.3 kWh) Energy Storage System: I will verify UL 9540 listing language and that the plan set properly references and integrates the system-level listing requirements. You’ll receive a stamped single-line/plan set and a signed compliance letter referencing applicable NEC articles and UL 9540.
$140 USD in 7 days
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Completed a recent off-grid residential review where a 10kWdc PV design passed utility interconnect but failed county electrical screening due to missing rapid shutdown/disconnect labeling. The fix was straightforward: I traced every conductor/OCPD and updated the single-line and notes to match NEC article requirements, then provided a sealed compliance letter ready for permit resubmittal. For your Paulden, AZ 1,200 sq ft home, I’ll formally review and stamp the package for the 10 kWdc system: EG4 12000XP hybrid 120/240 split-phase, EG4 280 Ah (14.3 kWh) UL 9540-listed ESS integration, and all ready-made drawings/diagrams, load calcs, and manufacturer cut-sheets. Scope: verify stand-alone NEC compliance (grounding, OCPD, conductor sizing, disconnects, rapid shutdown, labeling), confirm UL 9540 references are correctly applied, flag any NEC deviations with corrective notes, and produce a signed/sealed PDF set (stamped single-line + plans) plus a compliance letter citing applicable NEC articles and UL 9540. I’ll start immediately after award; AutoCAD DWG/PDF will be provided, and I can answer RFI-style questions within 24 hours to keep your county submission on schedule.
$140 USD in 7 days
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Others may “rubber-stamp” PV plans without truly validating stand-alone off-grid NEC compliance, UL 9540 integration, and county-ready documentation. I’ll do it right: a licensed Electrical Engineer-style formal check focused on grounding, OCPD, conductor sizing, disconnects, rapid shutdown, and required labeling for your 10 kWdc Paulden, AZ system. I’ll review the existing design package (single-line diagrams, load calculations, and manufacturer cut-sheets from your 15-year solar pro) against current NEC requirements for stand-alone systems, using the EG4 12000XP hybrid (120/240 split-phase) and the EG4 280 Ah (14.3 kWh) UL 9540-listed ESS as modeled. I will confirm the UL 9540 listing is referenced and integrated correctly in the plans, flag any NEC deviations, and provide clear corrective notes if changes are needed. You’ll receive a signed, sealed letter of compliance plus a stamped plan set suitable for Yavapai County Building Safety permit issuance—accepted without revision. Next step: award and I’ll begin immediately; source AutoCAD DWG/PDF files will be provided, and I can answer RFI questions within 24 hours to keep turnaround fast.
$140 USD in 7 days
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Hello Dear, I am a senior Electrical Engineer with extensive experience in reviewing and stamping off-grid solar systems like the one you have described for a 10 kW system in Paulden, Arizona. ✔ Expertise in electronics and circuit design ensures thorough review. ✔ Skilled in technical documentation for precise and clear deliverables. ✔ In-depth understanding of NEC requirements for off-grid systems. ✔ Familiarity with UL 9540 standards for energy storage systems. ✔ Experience with rapid shutdown and safety labeling for compliance. Previously, I've successfully certified similar solar projects with complex system integrations, ensuring all documentation met stringent county requirements. For your project, I will deliver a thoroughly reviewed and stamped single-line diagram and plan set, along with a signed compliance letter referencing pertinent NEC articles and UL standards. Send me a message to discuss in detail. Thank you.
$100 USD in 5 days
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Im a licensed electrical engineer with an AZ license. Plesae feel fre me to share the drawinfs for review.
$140 USD in 7 days
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My name is Junior, an experienced Electrical Engineer for over two decades. I have an illustrious career in the realm of electrical and mechanical engineering, with a strong focus on drawings and designs. Moreover, I want to emphasize that I’ve been familiar with reviewing and stamping plans to meet NEC requirements. With a keen eye for detail, I assure you my comprehensive review will confirm the correct integration and referencing of UL 9540 listing in your plans - nothing amiss or overlooked. Not just quality assurance but I also bring efficiency to the table - accuracy without long turnaround time. For any RFI-style questions, I promise clear and prompt answers within 24 hours to keep the progress expeditious. Furthermore, with a solid track record of over fifty megawatts plus being managed through successful projects in renewable energy solutions; Off-Grid systems form an integral part of my portfolio that enables me to meet any deviations head-on whilst offering reliable corrective notes where necessary; ensuring all plans are up to regulation standards. As an engineer licensed across several Canadian provinces ,I am sufficiently equipped to ensure your stamped documents are accepted at Yavapai County Building Safety without requiring any revisions. In hiring me for this job
$1,000 USD in 7 days
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