NEC 2017 & 2020 Solar + Storage Requirements - Self Study


Authors: Justine Sanchez, Ryan Mayfield

Subjects: Solar: Batteries and Storage, Solar: NABCEP

Length: 1 module

Student Rating

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14 students have taken this course


Mayfield Renewables Solar+Storage Sequence (1/8)

About this Course:
It's no secret that the solar industry is quickly becoming the solar + storage industry. Don't take our word for it; according to Swinerton CEO George Hershman, “Everything in 2022 will have a storage component — the vast majority will have storage in 2021. Everything in California and the West, every contracted asset is going to have storage. We’re seeing the scale go up and cost go down — and we understand how to monetize it — it’s here to stay.”

Our new solar + storage workshop series is designed to help system designers and engineers, as well as building officials, project managers, installers, and sales staff stay up-to-date and ahead of the curve for one of the most dynamic sectors of the PV industry.

This two-hour course, the first in our eight-course sequence, covers important solar + storage design and installation requirements for the most recent iterations of the National Electrical Code (NEC 2017 and 2020). The course is intended for industry professionals who are already familiar with grid-interactive systems but want to understand NEC requirements specific to solar + storage systems.

The course is self-paced and can be taken at any point within 12 months of enrollment. During that time, you will have access to the course videos and all course materials, including an annotated copy of the presentation with detailed notes from our instructor and easy-to-understand system schematics highlighting which NEC Articles apply to which points within a solar + storage system architecture.

About our Solar + Storage Workshop Series:
Throughout the year, we will post a total of eight solar + storage courses to our HeatSpring page, on topics ranging from codes and standards to design best practices to an in-depth overview of the energy storage product market.

The courses are designed to be taken as a full sequence for a more holistic approach to solar + storage learning, or taken a la carte for industry professionals with significant experience in certain subject areas.

Next up in our workshop series is a course entitled "NFPA 855 and Fire Code Requirements for ESS." This course will be posted in Q1 2021. In the meantime, please reach out to us at with any questions or comments you have.

Interested in taking the course as a group? We also offer each course as a live workshop led by our instructor, Justine Sanchez. Find more information here:

Ready To Sign Up Today? Click Here to Enroll

Preview the Course Material

Check out a free preview of the course by clicking the button below. This is a live assignment from the course and will give you a good sense for what the course will be like.

Free Preview - Part 6 - Applying NEC Article 706 to System Schematics
Flexible Online Training for Industry Professionals

This is a self-study, self-paced online course. You can begin instantly upon enrollment and complete the course materials at your own pace.

Access Information and Build Your Training Library

After enrolling, the course materials will remain in your account and be accessible 12 months (1 year) after enrollment. Access can be extended beyond 1 year with a monthly membership. Rewatch videos and review assignments as many times as you want. View updates the instructor makes to the course as the industry advances. Return to your course anytime with online access from anywhere in the world.

Earn A Certificate of Completion

When you complete this course you are eligible for a certificate of completion from HeatSpring. You can download your certificate as soon as you have completed all of the course requirements. Students can easily share their verified certificates on their LinkedIn profiles using our LinkedIn integration.

Earn Continuing Education Credits

Approved for: NABCEP Advanced Credit Hours, NABCEP NEC, NABCEP JTA, NABCEP RE Elective, NABCEP PV Associate Renewal.

Approved NABCEP CEU Hours by Credential and Category

NABCEP Credential Advanced Hours for Exam Recertification CEU Hours NEC JTA RE Elective Building or Fire Code
PV Installation Professional Certification 2 2 2 2 2 0
PV Design Specialist Certification 0 2 2 2 2 0
PV Installer Specialist Certification 0 2 2 2 2 0
PV C&M Specialist Certification 0 2 2 2 2 0
PV Technical Sales Certification 0 2 0 2 2 0
PV System Inspector Certification 0 2 2 0 0 0
PV Associate Credential 0 2 0 0 0 0

+ Learn more about NABCEP Credentials


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...[more]

Justine Sanchez

Solar+Storage Program Director, Mayfield Renewables

As Solar + Storage Program Director for Mayfield Renewables, Justine spends her days developing and teaching workshops on energy storage systems, reviewing electrical plan sets for PV and solar-plus-storage projects, and acting as a project consultant and facilitator for commercial-scale solar-plus-storage systems. Since 1993, Justine has played many technical roles...[more]

Free Preview - Part 6 - Applying NEC Article 706 to System Schematics

Course Outline

NEC 2020 Solar + Storage Requirements

  • Presentation Materials (Download .pdf)
  • Part 1 - Course Introduction and Interactive PV Systems (Video - 13:48 minutes)
  • Part 2 - AC- and DC-Coupled Solar + Storage Systems (Video - 08:43 minutes)
  • Part 3 - Applicable NEC Codes and Where to Apply Them (Video - 07:47 minutes)
  • Part 4 - NEC Article 690: Solar Photovoltaic (PV) Systems (Video - 07:41 minutes)
  • Part 5 - Introduction to NEC Article 706: Energy Storage Systems (Video - 18:03 minutes)
  • Part 6 - Applying NEC Article 706 to System Schematics (Video - 09:17 minutes) preview
  • Part 7 - NEC Article 705: Interconnected Electric Power Production Sources (Video - 15:16 minutes)
  • Part 8 - NEC Article 480: Storage Batteries and Article 710: Stand-Alone Systems (Video - 13:05 minutes)
  • Part 9 - Common ESS Design and NEC Issues (Video - 07:25 minutes)
Free Preview - Part 6 - Applying NEC Article 706 to System Schematics

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