- Who Issues the PV System Inspector Credential
- Exam Format at a Glance
- Fees, Eligibility and Scheduling Mechanics
- The Four Weighted Domains
- Domain 1 Deep Facts: Electrical Inspection
- Storage, Mechanical/Structural and Documentation Facts
- Reference Materials and Calculator Rules
- Passing Score: 65 on a Scaled 0-99 Range
- Validity and Renewal Facts
- Sequencing Your Review Around the Weights
- What the Issuer Sources Do Not Tell You
- Frequently Asked Questions
- The exam has 45 multiple-choice items in 2 hours: 40 scored, 5 unidentified unscored pilot questions.
- Passing is 65 on a scaled 0-99 scale, not 65 percent correct.
- Inspecting Electrical Components and Systems carries 44% of the exam; storage and mechanical/structural carry 21% each.
- The exam reference is the 2017 NEC, with limited reference access, not unrestricted open book.
Who Issues the PV System Inspector Credential
PVSI in this article means exactly one thing: the PV System Inspector (PVSI) Board Certification from the North American Board of Certified Energy Practitioners (NABCEP). The exam is delivered through Meazure Learning, and the PVSI-specific instructions call for live remote proctoring (LRP). If you want the plain-language orientation first, start with What Is PVSI Certification?; this page is the compressed review sheet you can come back to in the final days before your sitting.
One point to settle up front: certification does not replace a state license. Whatever your jurisdiction requires to perform inspections on its own authority is a separate matter from this credential.
Exam Format at a Glance
| Item | PVSI Fact |
|---|---|
| Question count | 45 multiple-choice items |
| Scored vs. pilot | 40 scored; 5 unidentified unscored pilot questions |
| Answer choices | Four per question |
| Time limit | 2 hours |
| Delivery | English-language, computer-delivered; live remote proctoring per PVSI-specific instructions |
| Passing score | 65 on a scaled 0-99 scale |
| Calculator | On-screen scientific calculator only |
| Nature of exam | Knowledge test, not a practical on-site inspection assessment |
Because five of the 45 items are unscored pilot questions and you cannot tell which ones, treat every question as if it counts. With 45 items in 120 minutes you have roughly two and a half minutes per question on average, which is generous for recall items but tighter for code-lookup and calculation items.
Fees, Eligibility and Scheduling Mechanics
Fee Sheet (USD)
- Application: $0
- Examination: $150
- Retake: $150
- Recertification: $150
- Testing vendor surcharge: an additional $75 outside the United States and Canada
For the full cost picture, see PVSI Certification Cost 2026: Complete Pricing Breakdown.
Who May Apply
Prerequisites are lean: you must be 18 or older, submit the application, accept the ethics agreement, and pay the exam fee. Handbook section 10.2 states there are no specific education, training or experience prerequisites. However, the exam presumes familiarity with PV systems, applicable codes and inspection work. Do not read the absence of formal prerequisites as a sign that the exam is introductory, and do not carry over requirements from other credentials. The details live in PVSI Requirements 2026: Eligibility, Prerequisites & How to Qualify.
Eligibility Window
Once approved, you have one year of examination eligibility. The scheduling page also states a six-month scheduling deadline, but it anchors that deadline inconsistently (approval in one place, the Notice to Schedule in another). Use the date printed on your candidate notice as the controlling deadline, and confirm timing questions with the issuer. For testing-window logistics, see PVSI Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
The Four Weighted Domains
The official examination specifications define four weighted performance domains containing 15 tasks in total, with weights summing to 100%. These are exam objectives, not chapters of any particular course. The 15 subordinate tasks do not change the four-domain count.
| Domain | Weight | Approx. Scored Items* |
|---|---|---|
| 1. Inspecting Electrical Components and Systems | 44% | about 18 of 40 |
| 2. Inspecting Energy Storage Components and Systems | 21% | about 8 of 40 |
| 3. Inspecting Mechanical/Structural Components and Systems | 21% | about 8 of 40 |
| 4. Documentation for the System Inspection | 14% | about 6 of 40 |
*Rounded illustration of weight applied to 40 scored items; actual item distribution on any form can vary slightly.
The arithmetic matters for planning: electrical inspection alone is nearly half the exam, while energy storage and mechanical/structural together are another 42%. Documentation is the smallest slice but is usually the most learnable. A deeper walk-through of each area is in PVSI Exam Domains 2026: Complete Guide to All 4 Content Areas.
Domain 1 Deep Facts: Electrical Inspection
Domain 1: Inspecting Electrical Components and Systems (44%)
This is the domain that decides most outcomes. The exam is anchored to the 2017 NEC, so your fluency should be in how that edition's PV and related provisions apply to what an inspector observes in the field.
- Know where to find the PV-specific requirements in the 2017 NEC quickly, since reference access is limited and time is finite.
- Practice the inspector's viewpoint: given a described installation, what is compliant, what is not, and what would you flag?
- Expect calculation-style items that you can handle with the on-screen scientific calculator.
- Be able to reason about conductors, overcurrent protection, grounding and bonding, disconnecting means, and labeling as an inspector verifies them, not as an installer designs them.
Storage, Mechanical/Structural and Documentation Facts
Domain 2: Inspecting Energy Storage Components and Systems (21%)
Storage is a full domain on its own, not a footnote to the electrical material. Inspectors with a purely PV-array background often underinvest here.
- Review inspection of battery and storage equipment, its installation conditions, protection and disconnection, and relevant code provisions.
- Be ready to evaluate whether described storage arrangements conform to the 2017 NEC.
- Practice distinguishing what an inspector verifies visually from what requires documentation review.
Domain 3: Inspecting Mechanical/Structural Components and Systems (21%)
This domain carries the same weight as storage and covers the physical side of an installation.
- Review mounting and racking inspection, attachment, roof or ground conditions, and weatherproofing concerns an inspector would evaluate.
- Understand how structural observations feed into pass/fail or correction decisions.
- Remember the exam is knowledge-based and computer-delivered, so expect scenario questions rather than hands-on tasks.
Domain 4: Documentation for the System Inspection (14%)
The smallest domain, and a high-return one because the material is procedural.
- Know what an inspector documents, how findings are recorded, and how documentation supports the result of an inspection.
- Be able to identify what information a complete inspection record should contain.
- Do not skip it: 14% is roughly six scored items, enough to swing a borderline result.
Reference Materials and Calculator Rules
PVSI is not an unrestricted open-book exam. It is better described as limited NEC reference access:
- An electronic PDF of the NEC is supplied during the exam.
- The current issuer FAQ permits compliant physical codebooks: softbound or spiral-bound, any year, pre-highlighted only.
- No notes, tabs, loose additions or photocopies are allowed in a physical book.
- Only the on-screen scientific calculator is permitted; no personal calculator.
The 2025 handbook contains a generic prohibition on books, and the current FAQ's reference permission qualifies it for this exam. Because rules like these can be updated, re-read the FAQ and your Notice to Schedule before test day, and test your workspace against the live-proctoring requirements. Approved accommodations are available through the issuer.
Key Takeaway
Reference access shortens lookups; it does not replace knowledge. Practice finding provisions in the 2017 NEC under time pressure, in both PDF and clean highlighted-book formats, so navigation is automatic on exam day.
Passing Score: 65 on a Scaled 0-99 Range
The passing score is 65 on a scaled 0-99 scale. A scaled score is not the same as percent correct, so you cannot convert it into a number of questions you may miss. You may encounter a third-party claim of 70; that figure came without a source and was not independently verified. The current issuer FAQ controls, and it states 65. For more on how to interpret this, read PVSI Passing Score 2026: Exactly What You Need to Pass.
Likewise, the retrieved issuer sources do not establish a credential-specific pass rate, so any specific percentage you see quoted should be treated skeptically. The discussion in PVSI Pass Rate 2026: What the Data Shows covers what can and cannot be said, and How Hard Is the PVSI Exam? Complete Difficulty Guide 2026 frames difficulty without invented numbers.
Validity and Renewal Facts
| Renewal Element | PVSI Requirement |
|---|---|
| Validity period | Three years |
| Continuing education | At least 8 hours of NEC-related CE during the cycle |
| Application | Recertification application |
| Fee | $150 |
| Ethics | Ethics compliance |
| Timing | Apply during year three |
Note that the 30-hour recertification requirement associated with specialist credentials does not apply to PVSI. If you are weighing long-term value, see Is the PVSI Certification Worth It? Complete ROI Analysis 2026; the issuer sources retrieved do not establish a certification-only salary premium, so the PVSI Salary Guide 2026 treats earnings qualitatively.
Sequencing Your Review Around the Weights
This is the only methodology section in this sheet, and it is tied directly to the domain weights. The principle: spend time roughly in proportion to weight, but front-load the domain where you are weakest.
Electrical Inspection (Domain 1, 44%)
- Set up your 2017 NEC reference and practice locating PV provisions.
- Work inspector-viewpoint scenarios on conductors, protection, grounding and labeling.
Electrical continued plus Storage (Domain 2, 21%)
- Finish remaining electrical topics and calculation practice with an on-screen-style calculator.
- Cover energy storage inspection and the related code provisions.
Mechanical/Structural (Domain 3, 21%) and Documentation (Domain 4, 14%)
- Review physical installation inspection concepts.
- Learn what a complete inspection record contains.
Timed Mixed Practice
- Take full-length timed sets of 45 questions in 120 minutes.
- Review misses by domain and revisit the heaviest-weighted gaps first.
For a fuller plan, see PVSI Study Guide 2026: How to Pass on Your First Attempt, and use the PVSI practice tests to rehearse the timing and question style.
What the Issuer Sources Do Not Tell You
A good cheat sheet is honest about its edges. The retrieved issuer sources, last checked October 14, 2026, do not establish:
- A credential-specific pass rate.
- A salary premium attributable to certification alone.
- A single consistent anchor date for the six-month scheduling deadline; use your Notice to Schedule.
The examination specifications you are studying come from the Photovoltaic System Inspector Job Task Analysis Guide (April 2017, V.04.17), supplemented by the 2025 Certification Handbook (January 23, 2025, V2). Because the JTA predates the current code reference, treat its older code bibliography as superseded by the 2017 NEC designation. Always verify details against the official program pages before you register, and use the main practice test site for question-style rehearsal rather than as a source of official rules.
Frequently Asked Questions
The exam has 45 multiple-choice questions with four answer choices each, and you have 2 hours. Forty items are scored and five are unidentified unscored pilot questions.
The passing score is 65 on a scaled 0-99 scale. It is not a percent-correct figure. A third-party claim of 70 was not verified; the current issuer FAQ controls at 65.
Access is limited rather than fully open book. An electronic NEC PDF is supplied, and the current FAQ allows compliant softbound or spiral-bound physical codebooks of any year, pre-highlighted only, with no notes, tabs, loose additions or photocopies. Only an on-screen scientific calculator is allowed.
The current issuer FAQ and the 2025 handbook identify the 2017 NEC as the PVSI exam reference. That supersedes the 2014 NEC bibliography in the older Job Task Analysis guide, and newer course code editions do not change the exam reference.
Certification is valid for three years. Renewal requires at least 8 hours of NEC-related continuing education, a recertification application, the $150 fee and ethics compliance, and you should apply during year three. For an overview of what the credential is, see What Is PVSI?