String Sizing Calculations
This course teaches how temperature changes impact PV system design and how to size inverter strings safely and efficiently.
Course Description
(PV412) String Sizing Calculations
This one-hour course addresses the importance of accounting for temperature variations outside of Standard Test Condition (STC) ratings using correction factors in the National Electrical Code (NEC) and manufacturer temperature coefficients when designing PV systems that use string inverters, as proper string sizing calculations result in safe and efficient system operation that stays within the parameters of an inverter’s listed voltage ranges.
Instructor: Jenny Heinzen
Online: Independent Study
Course Details
Continuing Education
This course is approved by the Wisconsin Department of Safety & Professional Services (DSPS) for 1.0 Credit Hour for the following licenses:
- Commercial Electrical Inspector
- Industrial Journeyman Electrician
- Journeyman Electrician
- Master Electrician
- Registered Electrician
- Residential Journeyman Electrician
- Residential Master Electrician
- UDC Electrical Inspector
This course is approved by the North American Board of Certified Energy Practitioners (NABCEP) for the following credentials, certifications, categories, and hours:
- 1 PV Installation Professional Exam (JTA)
- 1 PV Design Specialist Exam (JTA & NEC)
- 1 PV Installer Specialist Exam (JTA & NEC)
- 1 PV Commissioning & Maintenance Specialist Exam (JTA & NEC)
- 1 PVIP Recertification (JTA, NEC & RE Elective)
- 1 PVDS Recertification (JTA, NEC & RE Elective)
- 1 PVIS Recertification (JTA, NEC & RE Elective)
- 1 PVCMS Recertification (JTA, NEC & RE Elective)
- 1 PVTS Recertification (NEC & RE Elective)
- 1 ESIP Recertification (NEC & RE Elective)
- 1 SHI Recertification (NEC & RE Elective)
- 1 PV System Inspector Recertification (NEC)
- 1 Solar Heating System Inspector Recertification (NEC)
- 1 PV Associate Renewal
