- What the PV2 Credential Actually Is
- The Eligibility Stack: Training, Safety, CSS and Experience Points
- Exam Format, Fees and Testing Mechanics
- The 15 Competency Areas Behind the Questions
- Why PV2 Blends Design Thinking with Field Work
- Sequencing Your Preparation Around PV2 Domains
- Staying Certified: The Renewal Conflict to Resolve
- Where the Credential Fits in the Job Market
- Frequently Asked Questions
- PV2 here means ETA International's Photovoltaic Installer/Designer certification: 100 questions, two hours, 75% to pass, four-year term.
- The fee is $155 and includes one free retake within one year of your first examination.
- Eligibility is layered: 60 training hours, OSHA 10 or equivalent, ETA CSS certification and 150 attested experience points.
- Compulsory experience includes at least three PV systems of 2 kW or larger, with at least two reference contacts.
What the PV2 Credential Actually Is
Photovoltaic Installer/Designer (PV2) is a certification offered by ETA International for professionals who install solar electric systems and also take part in designing them. The "2" signals a step above entry-level PV knowledge. ETA's competency document states that PV2 supplements the knowledge covered in its PVI1 certification, so you are expected to build on foundational installation skills rather than start from zero.
Because several unrelated credentials share the "PV2" shorthand, it helps to be precise. Everything in this article refers only to the ETA Photovoltaic Installer/Designer credential. If you are still orienting yourself, the pages on what PV2 certification is and what PV2 stands for cover the naming question in more detail.
The credential matters because it documents two things at once: that you can pass a written examination built from published competencies, and that you have verifiable field experience. That pairing is the defining feature of PV2 and the reason it is more than a classroom-only certificate.
The Eligibility Stack: Training, Safety, CSS and Experience Points
Most candidates underestimate how much has to happen before exam day. According to ETA's PV2 process and experience checklist, you must satisfy several requirements in addition to passing the written test. Our PV2 requirements guide goes deeper, but here is the working summary.
| Requirement | What ETA Specifies |
|---|---|
| Minimum age | At least 18 years old |
| Photovoltaic training | 60 contact hours of ETA-approved or equivalent training |
| Safety course | OSHA 10 construction safety or an equivalent jurisdictional course |
| Customer service credential | ETA Customer Service Specialist (CSS) certification |
| Documented experience | At least 150 attested experience points, including every compulsory task |
| References | At least two reference contacts |
| Installation minimum | At least three systems of 2 kW or larger within the compulsory experience |
| Conduct | Agreement to ETA's Code of Conduct |
| Examination | Pass the written exam |
No Separate Hands-On Exam, But Experience Still Counts
ETA's overview lists no separate hands-on practical examination for PV2. Do not read that as permission to skip field experience. The checklist's documented installation experience remains mandatory, so the "hands-on" element is proven through attested points and references instead of a proctored practical.
Why CSS Surprises People
The Customer Service Specialist requirement is easy to overlook because it has nothing to do with solar technology. Yet it is a hard prerequisite. If you are planning a timeline, check this item early, since you cannot complete the PV2 process without it.
Exam Format, Fees and Testing Mechanics
ETA's current Renewable Energy Certifications listing specifies the following for PV2:
- Questions: 100
- Time limit: two hours for the written exam
- Passing score: 75%
- Examination fee: $155
- Certification term: four years
- Retake policy: one free retake within one year of the first examination
Two hours for 100 questions averages out to roughly 72 seconds per question, which is workable for recall items but tight for questions that require a calculation. A 75% passing score means you can miss up to 25 questions, so you do not need perfection, but you cannot afford to write off an entire domain. For the numbers in context, see the PV2 passing score breakdown and the PV2 certification cost guide.
How Testing Is Arranged
You schedule testing through an ETA Certification Administrator. ETA offers Trapeza online testing or paper-based testing, depending on what the administrator arranges. Your administrator is also the right person to ask about scheduling windows; the PV2 exam dates article explains how to approach that conversation.
Wondering about difficulty? The format alone does not answer it. Our PV2 difficulty guide looks at what makes the exam demanding, and the pass rate article explains why no trustworthy public pass-rate figure should be assumed.
The 15 Competency Areas Behind the Questions
ETA states that examination questions derive from the certification competencies. The PV2 competency document (copyright 2019) lists 15 numbered headings. These are unweighted official objectives, not a percentage-based blueprint, so you should not assume any domain is worth more or less than another. The full breakdown lives in the PV2 exam domains guide; here is how to think about the groupings.
Foundations and Safety
Domain 1: History and Background of Photovoltaics (PV)
Expect context questions on how PV technology developed and why it matters today.
- Basic technology evolution and terminology
- How historical developments connect to current system types
Domain 2: Additional PV Project Safety
This builds on the OSHA 10 prerequisite with PV-specific hazards.
- Electrical hazards unique to energized PV arrays
- Working at heights and roof access on solar jobs
- Personal protective equipment and safe work practices
Note that the competency document spells this heading "ADDITONAL" in the source. That is ETA's spelling, not a typo to worry about on the exam.
Grid, Customer and Code Knowledge
Domains 3-5: How the Grid Works, Determining Customer Needs, Codes and Standards
These three areas connect the technical system to the real world it plugs into.
- Grid interaction and how PV systems relate to utility power
- Translating a customer's goals and usage into design requirements
- Applying the codes and standards that govern installation
Design, Selection and Sizing
Domains 6-8: Conducting a Site Survey, Components Selection, Array Sizing
This cluster is where the "Designer" in the credential name earns its place.
- Evaluating a site for suitability before committing to a design
- Choosing modules, inverters and other components that fit the application
- Sizing the array to meet defined energy goals
Build, Storage and Mounting
Domains 9-11: Wiring the System, Energy Storage Systems, PV Mounting Systems
These are the installation-heavy areas where field experience pays off.
- Conductor, wiring and electrical configuration decisions
- Energy storage concepts as they relate to PV systems
- Mounting approaches and how they interact with roofs and structures
Delivery and Lifecycle
Domains 12-15: Project Management, Testing and Troubleshooting, Commissioning the System, Maintaining the System
The final group covers everything after the design is set.
- Managing scope, schedule and coordination on a PV project
- Diagnosing faults and verifying system performance
- Formal commissioning steps before handing a system over
- Ongoing maintenance to keep a system producing
Key Takeaway
The 15 headings are official competencies, but ETA does not publish weights. The headings also do not guarantee exhaustive coverage, since PV2 supplements PVI1 knowledge. Review prerequisite PV fundamentals alongside these 15 areas.
Why PV2 Blends Design Thinking with Field Work
Look at the domain list again and notice the arc: customer needs, site survey, components, sizing, wiring, mounting, project management, commissioning. That sequence mirrors how a real project unfolds. A PV2 candidate is expected to reason from a customer's goal all the way to a commissioned system, not just to execute a design someone else produced.
This has a practical consequence for how you prepare. Questions in the design-oriented domains are likely to reward understanding relationships: how a site constraint affects component choice, how component choice affects sizing, and how sizing affects wiring. Memorizing isolated facts will serve you less well than tracing a single hypothetical project through every domain.
Use Your Own Installations as Study Material
Because eligibility requires at least three systems of 2 kW or larger, you already have real projects to draw from. Walk each one back through the 15 domains: what did the site survey reveal, why were those components chosen, how was the array sized, how was it commissioned? Gaps in your ability to answer those questions point directly at what to study.
Sequencing Your Preparation Around PV2 Domains
Rather than a generic plan, schedule by domain relationship. A reasonable approach is to front-load the areas that everything else depends on, then move to design, then to installation and lifecycle. Pair this with the detailed PV2 study guide and the condensed PV2 cheat sheet for final review.
Foundations and Safety
- Domains 1 and 2: PV background and additional PV project safety
- Revisit PVI1-level fundamentals, since PV2 builds on them
Grid, Customer and Codes
- Domains 3, 4 and 5: grid operation, customer needs, codes and standards
- Codes first, because later design decisions depend on them
Design Core
- Domains 6, 7 and 8: site survey, components selection, array sizing
- Practice calculations with a nonprogrammable calculator
Build and Storage
- Domains 9, 10 and 11: wiring, energy storage, mounting
- Tie each topic back to one of your own documented installations
Delivery, Lifecycle and Timed Practice
- Domains 12 to 15: project management, testing and troubleshooting, commissioning, maintenance
- Finish with full-length timed sets of 100 questions in two hours using the PV2 practice test
Adjust the pacing to your experience. A seasoned installer may spend less time on wiring and more on codes and project management, while a designer who rarely touches a roof may need extra attention on mounting and commissioning.
Staying Certified: The Renewal Conflict to Resolve
The certification term is four years, and ETA documents maintenance requirements, but the sources do not line up neatly for PV2. This is worth understanding before you invest, because it affects your long-term cost and time commitment.
| Source | What It Says |
|---|---|
| PV2 checklist | 24 continuing-education hours over four years and $25 annual maintenance |
| ETA general policy: standard maintenance | 40 hours over four years or employer verification, with $25 annual maintenance |
| ETA general policy: hands-on maintenance | 24 hours plus employer verification, with $25 annual maintenance |
| ETA overview | Marks hands-on required as No for PV2 |
What is consistent across the sources is the $25 annual maintenance figure. Factor that recurring cost into your budget alongside the exam fee, and keep records of any continuing education so you are ready regardless of which route ETA confirms.
Where the Credential Fits in the Job Market
Photovoltaic Installer/Designer is a role title as much as a certification, and it points toward the kinds of employers who need people who can both plan and build: residential and commercial solar installation contractors, electrical contractors expanding into solar, and design-build firms that handle a project from customer consultation through commissioning. The inclusion of Customer Service Specialist certification as a prerequisite hints at how much customer-facing work the role involves.
Credentials do not guarantee a position or a specific income, and this article does not cite earnings figures because none are established in ETA's published materials. For a discussion of how to evaluate the financial side honestly, read the PV2 salary guide, the analysis of whether PV2 is worth it, and the PV2 jobs overview. If you are weighing training providers first, the PV2 training page is a good starting point.
Key Takeaway
PV2 documents both knowledge and field experience. Employers evaluating candidates can see a passed written exam plus attested installations, which is a stronger signal than coursework alone.
Frequently Asked Questions
ETA's current listing specifies 100 questions with a two-hour written-exam limit. You need a 75% score to pass.
The examination fee is $155. ETA allows one free retake within one year of your first examination, so a single failed attempt does not mean paying the fee again within that window.
ETA's overview lists no separate hands-on examination. However, the checklist still requires documented installation experience, including at least three systems of 2 kW or larger and 150 attested experience points.
No. The 15 competency headings are unweighted official objectives that support exam preparation. Because no percentages are published, plan to study all 15 areas rather than guessing which count most.
The sources conflict: the PV2 checklist specifies 24 continuing-education hours over four years, while ETA's general policy describes 40-hour and 24-hour routes with different conditions. All carry $25 annual maintenance. Confirm the applicable PV2 route with ETA.
If you are ready to test yourself against the format, try the full set of questions on the PV2 Exam Prep practice site and revisit this guide's domain list to target any weak areas.