About this course

Welcome to Mayfield Renewables’ course on 2026 NEC Updates for Energy Storage Systems! 

Additional Resources:
We encourage students to create a free account on the NFPA website. This will grant you access to view any edition of NFPA codes and standards, including the 2020 and 2023 editions of NFPA 855. 
If you want a deeper dive into fire codes and NEC requirements, check out the Mayfield Renewables Code Corner series on YouTube for bite-sized explainer videos updated regularly.
If you are part of a team and would like to take this course live (remote or in-person) with a group, reach out to education@mayfield.energy or fill out the Contact Us form on our website.

Learning Objectives

  • national electrical code
  • energy storage systems

Course outline

5 modules
1 hour to complete
1:14 hours of video lectures
Module 1 • 4 assignments
Lesson 1: Course Introduction and General NEC Updates

Welcome to Mayfield Renewables’ one-hour course on 2026 NEC Updates for Energy Storage Systems!

This first lesson sets the foundation for the rest of the course. Instructor Ryan Mayfield discusses NEC adoption and a few general, high-level updates in the 2026 NEC.

We recommend downloading the course presentation PDF and following along as you watch the videos.

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Module 2 • 2 assignments
Lesson 2: Disconnecting Means

Lesson 2 is a deep dive into Section 706.15 Disconnecting Means. Ryan discusses disconnect types, locations, and naming conventions.   

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Module 3 • 2 assignments
Lesson 3: Power Control Systems

One of the bigger changes to the 2026 NEC is a larger emphasis on "power control systems" (PCS). In Lesson 3, Ryan explains what a PCS is, what a PCS can do, and PCS listing requirements. 

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Module 4 • 2 assignments
Lesson 4: ESS Capacity Sizing

In the final lesson for this course, Ryan walks through ESS sizing methods per NEC 702.4, before wrapping up with some key takeaways. 

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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!

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Instructor

Mayfield Renewables Education

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...

Frequently asked questions

Full FAQ
How does this course work?
You can begin this online course instantly upon enrollment. This course is delivered entirely online. Pre-order courses are available on launch date. This course is self-paced and you can set your own schedule to complete the materials. You can begin the lecture videos and other course materials as soon as you enroll. During your year of access the instructor will be in the course answering questions on the discussion board. 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.
Will the instructor really answer my questions during this course?
Yes! This is an instructor-led online course. You can ask questions on the discussion board and get prompt answers from your instructor. It varies by instructor and by course but typically instructors check-in between daily and weekly to check quiz results or project work, review and respond to discussion board questions and read survey responses. Check the enrollment page for specific information about each instructor's check-in frequency.
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 For Teams page to get a group discount.

$85

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