Solar PV Design and Installation (SEI) The SEI exam probes how well you can size inverters, calculate string configurations, and design mounting systems for real installations. You’ll encounter practical scenarios?rooftop load calculations, shading analysis, electrical code compliance?that mirror actual jobsite decisions. Mastery of NEC Article 690 and DC/AC ratio optimization separates competent installers from novices in the field.
| Exam Name | Solar PV Design and Installation |
| Exam Code | SEI |
| Format | PDF & Practice Test Engine |
| Target Year | 2026 Updated |
| Features | 100% Verified Q&As |
