Ryan Mayfield is one the industry's leading experts in National Electrical Code (NEC) compliance and has dedicated his career in advancing the solar industry through educating others on these important principles. As Technical Editor for Solar Pro Magazine, co-author of Home Power Magazine's Code Corner, and contributor to Mike Holt's Understanding NEC Requirements for Solar Photovoltaic Systems, you can be sure that Ryan is up to date on all the latest code changes and industry standards.


Heat Spring Course: Megawatt Design


Online training via Heat Spring, in partnership with Solar Pro magazine. 

Instructors: Ryan Mayfield, Mayfield Renewables, and Randy Batchelor, Sol Rebel

Learn large-scale solar design and how to get your projects permitted and installed faster and cheaper. This training covers many types of large solar PV systems, with a heavy emphasis on commercial rooftop systems. Ryan, along with help from other industry leaders, has developed this course to help experienced solar professionals grow in the industry.

High quality course and exceptional value. As a result of completing this course, I am able to focus my business into taking on utility-scale projects.
— Bob Solger, Solar Design Studio

Annual Trainings

Ryan hosts a number of in person training around the country and throughout the year. See him at one of the conferences below.


NABCEP Continuing Education Conference

March 25-28, 2019 @ San Diego, CA

Technical training on NEC 2017 for photovoltaics systems 


Oregon Solar Energy Conference (OSEC)

May 1-3, 2018 @ Portland, OR

Commercial PV Design from kw to mw

Common topics encountered with commercial PV design and installations. Discussions will included transformer selection for matching inverters to utility interconnection voltages and consideration of inverter topologies in commercial applications. Other topics to included PV array to inverter power ratio and power factor considerations with inverter selection.


AEE Solar Dealer Conference

Jan 17-19, 2018 @ San Diego, CA

PV Systems and NEC 690

NABCEP CE credits
Designed specifically for experienced PV professionals, this course will cover the major code requirements affecting PV installations, focusing on Article 690 of the 2014 and 2017 NEC. The course will focus in the Code changes that have the greatest impact on PV installations including rapid shut down, wiring methods, and bonding and grounding.

PV Systems Article 690 and Utility Interconnection, Article 705

NABCEP CE credits
This session will continue from the previous discussion on NEC 690 with an emphasis on the utility interconnection requirements in 705. Upon successful completion of this course, participants will have the ability to recognize and implement new code requirements for PV systems.