About this course

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 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 covers important solar + storage design and installation requirements for two 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 a copy of the presentation with easy-to-understand system schematics highlighting which NEC Articles apply to which points within a solar + storage system architecture. 

About Mayfield Renewables' Solar + Storage Workshop Series:
The next course in this series is 2020 NFPA 855 and Fire Code Requirements for ESS. Both courses are offered together in the 2017/2023 Electrical & Fire Codes for Energy Storage Systems Bundle.

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

Interested in taking the course as a group? We also offer each course as a live workshop (in person or over Zoom) led by our founder and NEC Code Making Panel member, Ryan Mayfield. Find more information here: https://www.mayfield.energy/workshops

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Course outline

3 modules • 16 assignments • 1:41 hours of video lectures

Welcome • 2 assignments
Orientation Materials

This course is self-paced, so you don’t need to be logged in at any specific time. You can get started immediately after you enroll and the course materials will remain in your account with minimum guaranteed access for 12 months (1 year) after enrollment.

  • Set up email notifications and your student profile
  • Introduce yourself on the discussion board
Module 1 • 10 assignments
NEC 2017 & 2020 Solar-Plus-Storage Requirements

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

This is our last module but you still have access to the all of course materials for 12 months (1 year), so keep working and you'll be able to complete the course at your own pace. After your year of access expires you can optionally extend access with a HeatSpring Membership. Enjoy the course and keep in touch!

  • 1 Year of Access to Course Materials
  • Feedback: 2-minute Exit Survey
  • Consider Joining as a HeatSpring Member
  • Certificate of Completion: Request a Certificate

Continuing Education Units

Approved for the following CEUs

  • NABCEP RE Elective
  • NABCEP Advanced Credit Hours
  • NABCEP PV Associate Renewal

NABCEP Registered Provider

This course counts towards the training requirements for taking NABCEP professional certification exams and CEUs for renewing all certifications.


  • Mayfield Renewables Education

    View profile

    An engineer, an educator, and a technical committee member who reviews proposed changes to the National Electrical Code®, Ryan Mayfield has been committed to raising the bar on renewable energy industry best practices since 1999. “We know that the more expertise you have, the more you can drive down risk,” Ryan says. “That’s why we built Mayfield Renewables with... Learn more

Frequently asked questions

How does this course work?
You can begin this online course instantly upon enrollment. This 1 module course is delivered entirely online. The lecture video and other materials are available any time. After successfully completing the course, you will be able to generate a certificate of completion.
How long do I have access to the materials?
Students get unlimited access to the course materials as soon as they enroll and for one year (365 days) after enrollment. 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. After the one year of access expires, access can be extended by joining as a HeatSpring member. A single membership extends access to course materials for all past enrollments.
Is there a certificate of completion?
Yes, 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.
Can I register multiple people?
Yes please visit our HeatSpring for Groups page to get a group discount.


Based on 25 reviews
students have taken this course

This course provides a great overview and clear, quick reference materials for which specific NEC articles apply to different ESS systems (AC coupled, DC coupled, Stand-alone). It will be really helpful to have this course work documentation handy when completing designs to ensure that the correct NEC requirements have been addressed.

Beth Copanas
Technical Manager, Solar, Ulteig
Josh S
Roy B

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