Nevada Photovoltaics Contractor (C-2G) Exam - Online Exam Prep

Prepare for the Nevada Photovoltaics Contractor (C-2G) examination with an online exam prep course focused on photovoltaic systems, electrical interconnection, solar components, system installation, electrical calculations, design, safety, and National Electrical Code navigation. This course provides an organized way to study the technical subjects represented on the Nevada C-2G trade examination while developing the solar-electric knowledge and code-navigation skills needed for a timed open-book test.

The Nevada C-2G Photovoltaics classification is regulated by the Nevada State Contractors Board. The classification covers qualifying work involving photovoltaic cells, batteries, and inverters used in converting solar energy into electricity. Candidates preparing for this license should understand photovoltaic theory, electrical interconnection, system components, installation practices, design concepts, electrical calculations, permitting and inspection topics, utility interconnection, and construction safety.

The primary approved exam-room reference used for this preparation is NFPA 70 - National Electrical Code, 2017 Edition. Candidates should become comfortable navigating the NEC because electrical interconnection, conductors, grounding and bonding, overcurrent protection, disconnecting means, equipment, wiring methods, and photovoltaic-specific requirements can be important parts of C-2G preparation.

Additional study references are Photovoltaic Systems, 3rd Edition, 2011; Code of Federal Regulations - 29 CFR Part 1926 (OSHA); and Ugly's Electrical References. These three books are used for preparation but are not allowed into the C-2G trade examination. Candidates should use them to strengthen photovoltaic knowledge, electrical calculation skills, construction-safety understanding, and practical electrical recall before test day.

Online exam preparation allows candidates to divide the C-2G material into manageable study areas. Photovoltaic Theory, Electrical Interconnection, Permitting and Inspection, Photovoltaic Components, Installation, Estimating and Calculations, Design, Safety, and NEC navigation can each receive focused attention based on individual strengths and weaknesses.

The combination of photovoltaic trade knowledge and reference navigation is especially important for an open-book electrical examination. Candidates should understand the underlying solar-electric concepts well enough to answer many questions directly while using the National Electrical Code efficiently when a specific electrical requirement needs to be located.

Exam Details

The Nevada C-2G Photovoltaics Contractor trade examination is administered through PSI for candidates who receive examination eligibility through the Nevada State Contractors Board.

• Exam: Nevada C-2G Photovoltaics Contractor
• Number of Questions: 75
• Time Allowed: 150 minutes
• Minimum Passing Score: 56 correct answers
• Testing Provider: PSI

The C-2G examination content is organized around major photovoltaic and electrical knowledge areas:

• Photovoltaic Theory: 5 questions
• Electrical Interconnection: 15 questions
• Permitting, Inspection, and Utility Interconnections: 5 questions
• Photovoltaic Components: 15 questions
• Photovoltaic Installation: 10 questions
• Estimating, Calculations, and Design: 20 questions
• Safety: 5 questions

Estimating, Calculations, and Design is the largest individual category with 20 questions. Candidates should spend substantial study time on electrical calculations, system relationships, photovoltaic sizing principles, conductor considerations, equipment relationships, and design concepts. Calculation practice should focus on understanding the method used to solve a problem instead of memorizing isolated numerical answers.

Electrical Interconnection contains 15 questions. Preparation should include conductors, grounding and bonding, overcurrent protection, disconnecting means, equipment connections, wiring methods, and the electrical relationship between photovoltaic equipment and the connected electrical system.

Photovoltaic Components also contains 15 questions. Candidates should understand the purpose and operation of photovoltaic cells, modules, batteries, inverters, conductors, disconnects, protective devices, and other equipment that can form part of a photovoltaic system.

Photovoltaic Installation contains 10 questions. Study should include equipment placement, wiring methods, system configuration, mounting considerations, component installation, inspection concerns, and practical solar-electric installation procedures.

Photovoltaic Theory, Permitting, Inspection, and Utility Interconnections, and Safety each contain five questions. These sections may be smaller, but they remain important because every correct answer contributes toward the minimum passing score.

Open Book Test

The Nevada C-2G Photovoltaics Contractor trade examination is an open-book test. The approved technical reference used for this preparation is:

• NFPA 70 - National Electrical Code, 2017 Edition

Candidates should use the National Electrical Code throughout preparation rather than waiting until shortly before the examination to begin navigating it. Familiarity with the NEC structure can make a significant difference when working through a timed open-book test.

Useful navigation practice includes working with the NEC index, Articles, definitions, tables, exceptions, cross-references, and photovoltaic-related sections. Candidates should also practice finding requirements involving conductors, grounding and bonding, overcurrent protection, disconnecting means, wiring methods, and electrical equipment.

The following study references are not allowed into the C-2G examination:

• Photovoltaic Systems, 3rd Edition, 2011
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
• Ugly's Electrical References

Photovoltaic Systems should be used to develop understanding of solar-electric theory, modules, batteries, inverters, system design, installation methods, electrical interconnection, and other photovoltaic concepts that should be familiar before testing.

OSHA should be used to strengthen safety knowledge involving fall protection, ladders, personal protective equipment, electrical hazards, tools, material handling, and other construction-safety concerns associated with photovoltaic installation.

Ugly's Electrical References can support preparation involving formulas, calculations, conductor information, electrical relationships, and practical electrical concepts. Since this book cannot be used during testing, calculation methods should become familiar enough to apply without depending on the reference.

An open-book exam still requires strong pacing. With 75 questions and 150 minutes available, candidates have an average of two minutes per question. Candidates who attempt to research every answer in the NEC can quickly use more time than necessary. A better preparation strategy combines technical knowledge with targeted reference searches.

Licensing Steps

The Nevada State Contractors Board regulates licensing for the C-2G Photovoltaics classification. Passing the trade exam is one part of the overall contractor licensing process.

1. Confirm the C-2G classification. Determine that the Photovoltaics classification matches the work the contracting business intends to perform.
2. Identify the Trade Qualified Individual. Designate the individual who will establish the required experience and technical qualification.
3. Document qualifying experience. Prepare records demonstrating relevant work within the requested C-2G classification.
4. Prepare the Nevada contractor license application. Organize the required business, qualifier, experience, financial, and supporting information.
5. Submit the application to the Nevada State Contractors Board. The Board reviews qualifications before examination eligibility is issued.
6. Complete applicable background requirements. Follow the fingerprint and background procedures required during Nevada contractor licensing.
7. Provide applicable financial information. Financial responsibility is evaluated as part of the contractor licensing process.
8. Receive examination eligibility. Candidates who satisfy the applicable review requirements can proceed with required testing.
9. Schedule the C-2G trade examination through PSI. Arrange testing after receiving eligibility.
10. Prepare for the C-2G trade exam. Study photovoltaic theory, components, installation, interconnection, calculations, design, safety, permitting topics, and NEC navigation.
11. Prepare for Nevada Business and Law. Nevada contractor applicants generally must also satisfy the Contractor Management Survey Business and Law requirement unless an applicable waiver applies.
12. Complete applicable examinations. Meet the required trade and management examination requirements.
13. Complete final licensing requirements. Address applicable financial responsibility, bonding, and other Nevada State Contractors Board requirements before license issuance.

For the standard Nevada contractor licensing pathway, the Trade Qualified Individual generally must have at least four years of qualifying experience in the requested classification. The qualifying experience generally must have been obtained within the 15 years immediately preceding the application.

State Requirements

The Nevada C-2G Photovoltaics classification covers qualifying installation, alteration, and repair work involving photovoltaic cells, batteries, and inverters used to convert solar energy into electricity.

Candidates should understand the authorized scope of the classification and the relationship between photovoltaic work and other electrical work that may require a different Nevada contractor classification.

For the standard licensing pathway, the Trade Qualified Individual generally must have four years of qualifying experience in the requested classification within the 15 years immediately preceding the filing of the application.

Applicants should maintain organized experience documentation showing the type of photovoltaic work performed and the period during which the work was completed. Experience documentation is an important part of establishing trade qualification.

Nevada contractor licensing distinguishes between trade and management qualification. One individual may fulfill both roles when the applicable requirements are satisfied, or separate qualified individuals may be designated.

The Trade Qualified Individual establishes the applicable experience and trade qualification for C-2G. The Management Qualified Individual generally satisfies the Nevada Business and Law requirement unless an applicable waiver is approved.

Nevada contractor licensing also includes requirements beyond the technical examination. Applicants may need to address financial responsibility, background requirements, contractor bonding, and other conditions before the license is issued.

Passing the C-2G trade examination does not by itself complete the contractor licensing process. Candidates should approach trade study, Business and Law preparation, application documentation, and final licensing requirements as separate but related responsibilities.

Reference Books

• NFPA 70 - National Electrical Code, 2017 Edition
  This approved exam-room reference supports preparation involving photovoltaic electrical requirements, conductors, grounding and bonding, overcurrent protection, disconnecting means, wiring methods, electrical equipment, interconnection, and other NEC topics relevant to the C-2G examination.
• Photovoltaic Systems, 3rd Edition, 2011
  This study reference supports photovoltaic theory, modules, batteries, inverters, components, system design, electrical interconnection, installation methods, and practical solar-electric knowledge. This book is not allowed into the C-2G trade examination.
• Code of Federal Regulations - 29 CFR Part 1926 (OSHA)
  This study reference supports construction-safety preparation involving fall protection, ladders, personal protective equipment, electrical hazards, tools, material handling, and other jobsite safety topics. This book is not allowed into the C-2G trade examination.
• Ugly's Electrical References
  This study reference supports electrical calculations, formulas, conductor information, common electrical relationships, and practical electrical review. This book is not allowed into the C-2G trade examination.

The National Electrical Code should be used regularly for navigation practice. Candidates can select common photovoltaic or electrical topics and locate the relevant requirements repeatedly until the organization of the code becomes more familiar.

The study-only books serve a different purpose. They should be used to build technical understanding and recall before examination day because candidates will not have access to them during the test.

Photovoltaic Systems can help candidates connect solar-electric theory to practical installation and component knowledge. OSHA can help reinforce safe work practices, while Ugly's Electrical References can support repeated calculation practice and review of common electrical formulas.

Test Information and Study Materials

A productive Nevada C-2G study plan should reflect the examination weighting. Estimating, Calculations, and Design deserves the greatest emphasis, followed by Electrical Interconnection and Photovoltaic Components.

Prioritize calculations and design. Review formulas, electrical relationships, system-sizing concepts, conductor considerations, equipment relationships, and photovoltaic design principles. Practice solving problems without depending on Ugly's during the final stages of preparation.

Study Electrical Interconnection. Review conductors, grounding and bonding, disconnecting means, protective devices, electrical connections, and applicable NEC provisions.

Know Photovoltaic Components. Understand modules, cells, batteries, inverters, disconnects, conductors, and protective equipment, including the role each component plays within a photovoltaic system.

Review Installation. Study system configuration, equipment placement, wiring methods, mounting considerations, component installation, and inspection-related concerns.

Study Photovoltaic Theory. Build an understanding of solar-energy conversion and the electrical principles that affect photovoltaic system performance.

Prepare for Permitting, Inspection, and Utility Interconnections. Review the general sequence of photovoltaic project approval, inspection, and utility coordination represented by this exam category.

Prepare Safety for recall. Review fall protection, ladders, PPE, electrical hazards, tools, and safe work procedures. OSHA cannot be used during the trade exam.

Practice NEC navigation. Work with the 2017 National Electrical Code under timed conditions. Practice finding specific requirements rather than casually reading large sections of the code.

Use timed practice questions. With 75 questions in 150 minutes, candidates should develop a consistent pace. Practice can also help determine when a code lookup is useful and when a question can be answered directly from trade knowledge.

Review missed questions by category. If repeated mistakes occur in calculations, system design, electrical interconnection, components, installation, or safety, direct additional study toward that subject instead of repeating the entire course without focus.

How 1 Exam Prep Helps You Reach Your Goal

1 Exam Prep supports Nevada C-2G Photovoltaics Contractor candidates through organized study guidance, photovoltaic trade-focused review, practice-oriented preparation, National Electrical Code navigation, calculation practice, and confidence-building study structure.

The online format helps candidates divide the C-2G examination into manageable subjects. Estimating and Calculations, Electrical Interconnection, Photovoltaic Components, Installation, Theory, Permitting and Inspection, Safety, and NEC navigation can each receive focused review.

Trade-focused preparation helps candidates connect photovoltaic theory to practical system operation. Understanding how modules, cells, batteries, inverters, conductors, disconnects, and protective devices work together can create a stronger foundation than memorizing isolated facts.

Practice-oriented preparation helps candidates identify weaker areas. Missed questions can show whether additional study is needed in calculations, system design, components, electrical interconnection, installation, safety, or code navigation.

Reference-navigation preparation focuses on the 2017 National Electrical Code because it is the approved technical reference used during the C-2G trade examination. Repeated navigation practice helps candidates become more familiar with the NEC structure and make more efficient use of the open-book format.

The study-only references support knowledge that should be developed before examination day. Photovoltaic Systems supports solar-electric theory and installation knowledge, OSHA supports construction-safety preparation, and Ugly's Electrical References supports electrical formulas and calculations.

Online study also gives candidates flexibility to revisit challenging material. Someone who understands photovoltaic installation but struggles with calculations can concentrate additional time on estimating and design, while another candidate may focus on components, electrical interconnection, or NEC navigation.

The course structure encourages candidates to study technical knowledge in context. A system-design question may involve calculations and equipment relationships, while an installation question may also require an understanding of conductors, protection, code requirements, and safety.

By combining organized online study, photovoltaic trade review, electrical calculation practice, NEC navigation, construction-safety study, and practice-oriented preparation, 1 Exam Prep provides a structured path for professionals pursuing the Nevada C-2G Photovoltaics Contractor license.

Frequently Asked Questions

Is the Nevada C-2G Photovoltaics exam open book?

Yes. The C-2G trade examination is open book with NFPA 70 - National Electrical Code, 2017 Edition used as the approved technical exam-room reference.

Which books are not allowed into the C-2G exam?

Photovoltaic Systems, 3rd Edition, 2011; Code of Federal Regulations - 29 CFR Part 1926 (OSHA); and Ugly's Electrical References are study materials and are not allowed into the C-2G trade examination.

How many questions are on the Nevada C-2G examination?

The C-2G Photovoltaics Contractor examination contains 75 questions.

How much time is allowed for the C-2G exam?

Candidates have 150 minutes to complete the examination.

What score is required to pass the C-2G exam?

The minimum passing score is 56 correct answers out of 75 questions.

What is the largest C-2G exam category?

Estimating, Calculations, and Design is the largest examination category with 20 questions.

Does the C-2G exam include electrical interconnection?

Yes. Electrical Interconnection is a major examination category and includes important electrical concepts associated with photovoltaic systems.

Does the C-2G exam include photovoltaic components?

Yes. Candidates should understand photovoltaic modules, cells, batteries, inverters, conductors, disconnects, protective devices, and related system equipment.

Can I take Ugly's Electrical References into the exam?

No. Ugly's Electrical References is used for preparation and is not allowed into the C-2G trade examination.

Can I take OSHA into the C-2G exam?

No. OSHA 29 CFR Part 1926 is a study reference and is not allowed into the C-2G trade examination.

Can I take Photovoltaic Systems into the exam?

No. Photovoltaic Systems, 3rd Edition, 2011 is a study reference and is not allowed into the C-2G trade examination.

What work does the Nevada C-2G classification cover?

The classification covers qualifying photovoltaic work involving cells, batteries, and inverters used in converting solar energy into electricity, within the scope authorized for the Nevada C-2G classification.

How much qualifying experience does Nevada generally require?

The Trade Qualified Individual generally needs at least four years of qualifying experience in the requested classification, with that experience generally obtained within the 15 years immediately preceding the application.

Does Nevada also require Business and Law?

Nevada contractor applicants generally must satisfy the Contractor Management Survey Business and Law requirement in addition to the applicable trade qualification unless an approved waiver applies.

How should I prepare for an open-book photovoltaic exam?

Combine photovoltaic trade knowledge with targeted NEC navigation. Practice calculations, learn system components and installation concepts, review safety, and work with the 2017 National Electrical Code under timed conditions.

How does online exam prep help with the Nevada C-2G exam?

Online preparation allows candidates to study each examination category separately, repeat difficult subjects, practice calculations and exam-style questions, strengthen NEC navigation, and focus additional time on weaker areas.