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Design and Installation

Commercial Solar Design And 2014 NEC Code Changes - Self Study

Ryan Mayfield • Last updated 02/2021

4.5/5 (view ratings)
1651 students
1 module
2:00 hours
8 assignments

Course description

This free course is comprised of two lectures.

The first covers 2014 National Electrical Code (NEC) changes for commercial solar projects. The second discusses cost-effective design for large-scale solar systems. The lectures are presented by SolarPro Technical Editor Ryan Mayfield, a veteran solar installer.

Ryan is the best at what he does, and we're proud to make these targeted lessons available to solar professionals.

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Full course outline

Module 1 - 2014 NEC Code Changes + Cost-Effective Megawatt Design

This module contains recordings of recent lectures presented by Ryan Mayfield as well as downloadable PDF copies of his presentation slides. You can re-watch the videos as many times as you like. We also encourage you to post questions and discuss the content with your classmates.

  • "2014 NEC Code Changes" slides (.pdf)
  • Part 1 - 2014 NEC Code Changes that Impact Commercial Solar Design (31:52 minutes)
  • Part 2 - 2014 NEC Code Changes that Impact Commercial Solar Design (27:43 minutes)
  • "Cost-Effective Megawatt Design" slides (.pdf)
  • Cost-Effective Megawatt Design (01:01:22 hours)


Ryan Mayfield

Founder & CEO, Mayfield Renewables

Ryan Mayfield has been working in the renewable energy field since 1999 and is the President of Mayfield Renewables (formerly Renewable Energy Associates), a consulting firm providing design, support and educational services for electrical contractors, architectural and engineering firms, manufacturers and government agencies. Ryan served as Photovoltaic Systems... Learn more


187 reviews

1,651 students have taken this course

by Keith A 07/16/2023

by REUBEN RAMOUTAR, Ramoutar's Electrical Ltd 06/25/2023

Hi my name is Reuben, just got my PVA Certification, looking forward to obtaining PVIP, all this information will help me to understand solar system installs a bit more..

by Lourdu Merlin 01/09/2023

As a commercial PV design engineer, I find most of the concepts to be engaging that helped to proceed with the PV projects in a way more realistic way.

by habiburahman qaderi 07/02/2020

I really enjoyed plz make more course plz plz.

by Abdourraouf Ammari 06/16/2020

A technical course in the field of solar energy. I advise every person in this field to join it

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Frequently asked questions

How does this course work?

This is a free course. Enroll today and get access to all of the materials instantly. The lecture video and other materials are available any time.

How long do I have access to the materials?

For free courses there is no guarantee for how long the course materials will be available.

Is there a certificate of completion?

Certificates of completion are only provided to HeatSpring Membership subscribers. This course has not been approved by any credentialing organizations (NABCEP, AIA, USGBC etc) for Continuing Education Credits (CEUs). This course is for self education purposes only and completion does not indicate a level of professional expertise or credential.

Can I register multiple people?

Yes, this is a free course so you can share this page with other people from your group.

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