NABCEP PV study plan

Compute solar noon altitude and azimuth for three U.S. latitudes at solstices and equinox

Convert a magnetic compass reading to true south using magnetic declination and set array azimuth/tilt

Quantify shading loss for a documented obstruction using a pathfinder-style sun chart

Derive maximum module count from a scaled roof plan in both portrait and landscape orientation

Determine maximum PV backfeed current allowed at a service panel from busbar rating and main breaker size

Estimate annual kWh usage from 12 months of utility bills and set a target offset percentage

Size array and inverter to hit that offset after applying soiling, shading, mismatch, and temperature derates

Calculate string Voc at record-low cell temperature and Vmp at high cell temperature using module coefficients

Compare string-inverter, microinverter, and DC-optimizer architectures against three given site constraints

Size DC source/output conductors and AC conductors using 1.25 continuous-duty factors and terminal temperature ratings

Select source-circuit and inverter-output OCPDs and verify series rating and busbar interconnection rules

Calculate voltage drop on the longest DC and AC runs and upsize conductors to meet a 2%/3% target

Design a rapid-shutdown system and list required placards for the array and service equipment

Draw a complete one-line diagram including OCPDs, disconnects, and grounding electrode conductor connection

Map fifteen design decisions to their governing NEC article and section (690, 705, 250, 300, 338, 480)

Verify load-side and supply-side interconnection options against 705.12 requirements

Check array, racking, and equipment grounding/bonding for continuity back to the grounding electrode system

Complete 60 practice questions across Domains 1, 2, and 5 and log every miss by root cause

Sequence a rooftop install from layout snap to handoff, naming each inspection hold point

Specify flashing and penetration methods for comp shingle, standing-seam metal, and tile roofs

Torque module clamps and lugs to manufacturer spec and record verified values on a QC sheet

Route conductors and size conduit using Chapter 9 fill tables and support-spacing rules

Write an equipment grounding and bonding plan covering array frames, racking splices, and enclosures

Build a commissioning sequence: visual inspection, Voc/Isc, insulation resistance, ground continuity, IV curve trace, rapid-shutdown verification

Diagnose eight fault scenarios (ground fault, arc fault, string mismatch, inverter clipping, comm loss) from given field measurements

Interpret IV-curve deviations and correlate each shape with shading, soiling, or cell defects

Define monitoring alert thresholds and O&M service intervals for a commissioned system

Apply OSHA fall-protection, ladder, and DC electrical PPE requirements to a described job site

Assemble the permit submittal and inspection checklist for one chosen AHJ

Draft a customer proposal stating production estimate, assumptions, and warranty terms without overpromising

Walk through arc-flash and DC arc-fault hazard response steps for an energized array

Take two full-length timed practice exams and score results by domain

Re-teach the three lowest-scoring subareas using self-written summary sheets

Re-drill every missed item until answered correctly twice without notes

Rebuild the key formula and table-value reference sheet from memory