NABCEP PVSI study guide
NABCEP PVSI · Work through your exam, one topic at a time.
The NABCEP Photovoltaic System Inspector (PVSI) certification is a credential for people who inspect solar photovoltaic installations on behalf of Authorities Having Jurisdiction (AHJs), utilities, incentive programs, investors, and other parties doing quality assurance or code-compliance review. NABCEP introduced the PVSI and its companion Solar Heating System Inspector (SHSI) credential in a May 30, 2017 announcement, describing inspectors as playing a critical role in ensuring quality renewable energy installations. The NABCEP PVSI study guide has 5 sections and about 1,592 words.
01Knowledge of Applicable Codes and Ordinances
This domain tests whether you can identify the code edition and local rules that govern a PV installation and apply them during an inspection. The inspector does not choose a favorite edition; the authority having jurisdiction (AHJ) adopts a specific NEC edition, and local amendments, zoning, fire, structural, and utility interconnection requirements may be stricter.
329 words, about 2 min02Identification of All System Components
This domain tests component identification: can you find every major part, read its nameplate, confirm listing and ratings, and match it to the approved plans? You are looking for modules, inverters, combiners, DC/AC disconnects, overcurrent devices, rapid shutdown equipment, conductors, connectors, racking, grounding and bonding, batteries, and monitoring.
321 words, about 2 min03Assessment of System Safety and Operation
This domain tests whether you can assess safety and operation in the field: identify hazards, verify protective devices and disconnects work, and confirm the system operates as designed without unsafe conditions. Shock and arc-flash hazards: DC conductors are energized whenever modules are illuminated; treat them as live.
330 words, about 2 min04Interpretation of Design Plans and Building Documents
This domain tests plan literacy: can you read the approved set, extract the design basis, and compare it with field conditions? You will see site plans, roof plans, single-line diagrams, equipment schedules, structural details, and specifications.
312 words, about 2 min05On-Site Inspections and Reporting Results
This domain tests the inspection process and the quality of what you report: preparation, field evidence, code citations, nonconformance classification, and clear correction requirements. Review the approved plans, permits, and previous correction notices before arrival.
300 words, about 2 min