Student reviews

String Sizing Class
4.90
Based on 155 reviews
419
students have taken this course
5
88%
4
10%
3
2%
2
0%
1
0%

Reviews

Featured
Latest
11/06/2025
Maryam A
11/06/2025
Anwar D
11/06/2025
Sakinah A
11/05/2025
Marya A
11/04/2025
جنان م
11/04/2025
Fatimah A
11/03/2025
radwan h
11/03/2025

This course is an excellent starting point for anyone who wants to understand string sizing in PV systems. Sean White’s explanations are clear, practical, and easy to follow. I now feel confident calculating the correct number of solar modules in series for different environmental conditions. Highly recommended for students and professionals in renewable energy!

Zahra alawami
11/03/2025
Sukinah A
11/03/2025
Sumayah A
11/02/2025
Fatimah A
11/02/2025
Rayan A
11/01/2025
Zahraa A
11/01/2025
Wanas A
11/01/2025
Xui R
11/01/2025
Fatimah B
10/31/2025
Hawra A
10/30/2025
Zahra Z
10/30/2025
Maryam A
10/26/2025
Abdulrahman A
10/26/2025
Ali A
10/25/2025
S.Jaffar S
10/25/2025
Ali S
10/23/2025
Fahad M
10/17/2025
Alexis K
10/16/2025
Matt K
10/14/2025
Donald D
10/11/2025
Princes B
10/11/2025
Edouard E
10/08/2025
Sarika G
10/06/2025
Rae A
10/03/2025
Alexis K
10/01/2025
Shouq A
09/26/2025
Justin M
09/17/2025
Ian D
09/13/2025
Alex S
08/17/2025
Gonzalo Y
07/07/2025
Rene G
07/05/2025
Ayesha A
07/03/2025
Aleshba R
06/20/2025
Patrick M
06/18/2025
Ethan B
06/16/2025
Robbie S
06/13/2025
Daniel R
06/09/2025
Jethro A
05/30/2025
Myles A
04/25/2025

I graduated HS in 1989, I've been involved in the Electrical industry since December 1995. I've been on every jobsite except nuclear. "powerhouses" I'm the master Electrician with a Roofing/solar company. February 2024, I entered into "new territory" with Solar, batteries, wind etc. I'm so happy that my employer encouraged me to take my NABCEP - PVIP. I've taken the exam twice and failed (grades 49 then 62. This is because I didn't understand the Calculations. I highly recommend this course because "now" I'm very comfortable, and confident that I'll be able to perform the calculations by "knowing" the steps. Thankyou Sean and HeatSpring

Larry O'Farrell
Elite Roofing and solar
04/20/2025
Lorenna R
03/21/2025
Alejandro R
03/12/2025
Tom M