Solar PV (NABCEP) Practice Test

The Solar PV (NABCEP) Practice Test is a free intermediate-level, 20-minute skill test from Science of Apps. It tests readiness for NABCEP solar PV credentials such as the PV Associate and PV Installation Professional — solar resource and site assessment, PV components and system sizing, electrical design and code requirements for PV, and installation safety, commissioning and maintenance — written to the NABCEP job task analyses, NEC Article 690 and 705 principles (NFPA 70) and IRENA solar guidance for 2026. Code rules cited are US National Electrical Code; local codes apply elsewhere. Score 70% or more on its 20 questions to earn a verifiable Solar PV NABCEP Readiness certificate (SOA-SPVN). Every question is based on published standards and research — including NABCEP PV Installation Professional and PV Associate job task analyses (North American Board of Certified Energy Practitioners), NFPA 70: National Electrical Code (NEC) (National Fire Protection Association), International Renewable Energy Agency (IRENA) — and each answer is explained with its source.

Yes. Science of Apps has a free Solar PV (NABCEP) Practice Test built on the current North American Board of Certified Energy Practitioners exam outline for 2026 and 2027. It covers solar resource and site assessment, components and system sizing, electrical design and code and installation safety, commissioning and maintenance, scores you instantly and issues a verifiable certificate.

Read the four skill areas on this page, then take the 20-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a Solar PV NABCEP Readiness certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: NABCEP PV Installation Professional and PV Associate job task analyses (North American Board of Certified Energy Practitioners); NFPA 70: National Electrical Code (NEC) (National Fire Protection Association); International Renewable Energy Agency (IRENA); NFPA 70E: Electrical safety in the workplace (NFPA). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Four skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Solar Resource and Site Assessment (Solar geometry, Shading and Energy estimates); Components and System Sizing (Modules and inverters, String sizing and Storage); Electrical Design and Code (Conductor and OCPD sizing, Rapid shutdown and Interconnection); Installation Safety, Commissioning and Maintenance (Safety, Commissioning tests and O&M). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Solar PV installer, PV system designer, Electrician moving into solar, Solar sales or site assessor and O&M technician for solar plants. It suits anyone who wants a quick, verifiable way to show Solar PV NABCEP knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

The North American Board of Certified Energy Practitioners (NABCEP) offers the entry-level PV Associate credential and professional certifications such as PV Installation Professional (PVIP), PV Design Specialist and PV Installer Specialist. They are widely recognised in the North American solar industry and require training, experience and a proctored exam.

Solar module voltage rises as cell temperature falls. Designers calculate the maximum system voltage using the lowest expected temperature at the site, so the string never exceeds the inverter's and equipment's maximum voltage ratings on a cold, sunny morning.

No. It is an independent practice test written to the publicly available Solar PV NABCEP content outline for 2026 and 2027, for checking your readiness before you book the real exam. Passing earns a Science of Apps certificate rather than the official credential.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

20 questions — 5 from each of 4 skill areas — with a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

We rate it Intermediate: assumes hands-on experience in the role. It has 20 scenario questions — 5 from each of 4 skill areas — and a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.