Video Team for 2026 Solar Photovoltaic and Interconnected Power Systems Video Program

Mike Holt is an author, businessman, educator, speaker, publisher and National Electrical Code expert. He has written hundreds of electrical training books and articles, founded three successful businesses, and has taught thousands of electrical Code seminars across the US and internationally. 

His company, Mike Holt Enterprises, has been serving the electrical industry for almost 50 years, with a commitment to creating and publishing books, videos, online training, and curriculum support for electrical trainers, students, organizations, and electrical professionals. His devotion to the trade, coupled with the lessons he learned at the University of Miami’s MBA program, have helped him build one of the largest electrical training and publishing companies in the United States.

His broad experience has given him a unique perspective on building a profitable business that is committed to its customers and to quality. From an early age, Mike understood the need for working on your business, not just in your business. As a businessman, he understands the need for continuous education in order to keep current and stay relevant. As an educator, he has a commitment to help instructors improve their skills in the classroom and enrich the learning environment for their students. His deep understanding of the trade, dynamic presentation style, and ability to connect with students are some of the reasons that he is one of the most sought-after speakers in the industry.  

Mike is committed to changing lives and helping people take their careers to the next level. He has always felt a responsibility to provide education beyond the scope of just passing an exam. He draws on his previous experience as an electrician, inspector, contractor and instructor, to guide him in developing powerful training solutions that electricians understand and enjoy. He is always mindful of how hard learning can be for students who are intimidated by school, by their feelings towards learning, or by the complexity of the NEC. He’s mastered the art of simplifying and clarifying complicated technical concepts and his extensive use of illustrations helps students apply the content and relate the material to their work in the field. His ability to take the intimidation out of learning is reflected in the successful careers of his students. 

Mike’s commitment to pushing boundaries and setting high standards extends into his personal life as well. He’s an eight-time Overall National Barefoot Waterski Champion. Mike has more than 20 gold medals, many national records, and has competed in three World Barefoot Tournaments. In 2015, at the tender age of 64, he started a new adventure—competitive mountain bike racing. Every day he continues to find ways to motivate himself, both mentally and physically. 

Mike and his wife, Linda, reside in New Mexico and Florida, and are the parents of seven children and seven grandchildren. As his life has changed over the years, a few things have remained constant: his commitment to God, his love for his family, and doing what he can to change the lives of others through his products and seminars. 

Bill Brooks has over 30 years of experience in designing, installing, and evaluating grid-connected PV systems. He holds B.S. and M.S. degrees in Mechanical Engineering from North Carolina State University and is a registered Professional Mechanical and Electrical Engineer. More than 15,000 installers and inspectors have attended his courses throughout the U.S. and abroad. His field troubleshooting skills have been valuable in determining where problems occur, and to focus training on those issues of greatest need. He’s written several important technical manuals for the industry that are now widely used throughout the United States and beyond. His recent publications include the Expedited Permit Process for PV Systems, the Field Inspection Guidelines for PV Systems, and Understanding the CalFire Solar PV Installation Guidelines, as well as articles in IAEI and SolarPro magazines.

Bill is actively involved in the development of PV codes and standards including IEEE-929 and IEEE1547 (PV Utility Interconnection), the National Electrical Code Article 690 (Solar Photovoltaic Systems), and IEC TC82 (International PV Standards). He’s an active participant on many codes and standards panels including Code Making Panel 4 of the NEC, and UL1703 and UL1741 Standards Technical Panels. He was a member of the California Office of the State Fire Marshal’s (Cal Fire) PV Taskforce that developed the Solar Photovoltaic Installation Guideline, which became the model for national fire regulation. In addition, he chaired the NFPA Large-Scale PV Electric Supply Station task group, the NFPA Firefighter Safety, and PV systems task group, and two of the Article 690 task groups for Code Making Panel 4 for the 2020 NEC.

Bill enjoys helping people make progress toward reaching their God-given potential. His interests include sailing, motorcycle riding, performance automobiles, home theater, and all types of music.

Keith Craig is an extensively experienced professional in the electrical and engineering sectors, boasting over 38 years of experience, with 16 of those years focused specifically on the solar industry 1. He received his education at Georgia Tech and underwent classical training within the electrical Union working mainly in heavy industrial and large commercial.

Keith holds Master’s electrical licenses in 19 states and General Contractor licenses in eight states. Additionally, he is also a NABCEP certified professional. Prior to his current focus on renewables, he owned World Power Electric and World Power Enterprises before becoming the VP of Technology at GTI. His work took him around the globe to manage projects involving bio-refineries, energy auditing, gasification, solar power towers, CSP power, and solar. Keith serves as the VP of Technical Services and Commissioning, where he oversees the electrical, safety, quality control, commissioning and testing departments. He is also responsible for the company’s overall electrical designs and installations.

Keith developed, implemented, and currently instructs the electrical training program at Radiance Solar. Furthermore, he teaches CEU credit classes for the Atlanta IEC and is certified to instruct on NFPA 70E and NFPA 70B standards.

In his personal life, Keith has been a Shaolin Gong Fu Sifu for over 25 years. He continues to advance his formal education by studying for his Professional Engineering (PE) license in Power and Electronics. He has one son who is currently a freshman at Georgia Southern University and is studying Law.

Brian House is Vice President of Digital and Technical Training at Mike Holt Enterprises, and a Certified Mike Holt Instructor. He is a permanent member of the video teams, on which he has served since the 2011 Code cycle. Brian has worked in the trade since the 1990s in residential, commercial and industrial settings. He opened a contracting firm in 2003 that designed energy-efficient lighting retrofits, explored “green” biomass generators, and partnered with
residential PV companies in addition to traditional electrical installation and service.

In 2007, Brian was personally selected by Mike for development and began teaching seminars for Mike Holt Enterprises after being named a “Top Gun Presenter” in Mike’s Train the Trainer boot camp. Brian travels around the country teaching electricians, instructors,military personnel, and engineers. His experience in the trenches as an electrical contractor, along with Mike Holt’s instructor training, gives him a teaching style that is practical, straightforward, and refreshing.

Today, as Vice President of Digital and Technical Training at Mike Holt Enterprises, Brian leads the apprenticeship and digital product teams. They create cutting-edge training tools, and partner with in-house and apprenticeship training programs nationwide to help them reach the next level. He is also part of the content team that helps Mike bring his products to market, assisting in the editing of the textbooks, coordinating the content and illustrations, and assuring
the technical accuracy and flow of the information.

Brian served as the chief editor for this new edition of Understanding Electrical Estimating and assembled the team for the video production, and content review of this textbook and its supporting resources. Brian is high energy, with a passion for doing business the right way. He expresses his commitment to the industry and his love for its people in his teaching, working on books, and developing instructional programs and software tools.

Brian and his wife Carissa have shared the joy of their four children and many foster children during 25 years of marriage. When not mentoring youth at work or church, he can be found racing mountain bikes or SCUBA diving with his kids. He’s passionate about helping others and regularly engages with the youth of his community to motivate them into exploring their future.

Rebekah Hren is a licensed unlimited electrical contractor and NABCEP-certified PV Installation Professional with over twenty years of experience working in the solar and energy storage industries. Rebekah has been a principal voting member of NEC® Code-Making Panel 4 representing Solar Energy International since the 2020 cycle, and was a Task Group Chair during the 2023 and 2026 cycles. She is also a technical committee member for UL 3741, UL 9540, and UL 2703. Rebekah has co-authored two books on renewable energy, and has presented workshops at dozens of industry conferences around the world. In 2023 she was awarded the American Solar Energy Society Claudia Hansen Wentworth Award for Code Development, Innovation, and Training.

Since 2007 Rebekah has enjoyed teaching electricians, engineers, and code officials throughout the United States about code-compliant system design and installation, both online and in person. From 2019 to 2022 she worked as hardware engineer for an experimental product development team at Airbnb. Prior to that she was a system designer and consultant, focusing on large-scale ground-mounted PV systems. Rebekah is currently a senior consultant and co-founder at Solar Tech Collective.

In her spare time, Rebekah enjoys off-road adventures in her converted 4x4 van.

Charles Picard is a seasoned expert in the field of energy storage, currently serving as the Director of Codes and Standards for Energy Storage at the Solar Energy Industries Association (SEIA). With over twenty years of experience in the electrical and renewable energy sectors, Charles has been instrumental in shaping and advancing industry standards and regulations that promote the safe and efficient deployment of energy storage technologies.

In his role at SEIA, Charles leads initiatives to develop and harmonize codes and standards that ensure the reliability and safety of energy storage systems. His work involves close collaboration with industry stakeholders, regulatory bodies, and technical committees to address emerging challenges and drive innovation in the energy storage landscape. Prior to joining SEIA, Charles held key positions in both installation and manufacturing-focused companies, where he supported projects that significantly contributed to the growth and adoption of renewable energy solutions.

Charles began as a classically trained and licensed Master Electrician and has become a recognized thought leader in the industry, frequently speaking at conferences and contributing to leading publications. His commitment to advancing sustainable energy solutions is reflected in his active participation in various industry groups and his dedication to mentoring the next generation of energy professionals.

Eric Stromberg has a bachelor’s degree in electrical engineering and is a professional engineer. He started in the electrical industry when he was a teenager helping the neighborhood electrician. After high school, and a year of college, Eric worked for a couple of different audio companies, installing sound systems in a variety of locations from small buildings to baseball stadiums. After returning to college he worked as a journeyman wireman for an electrical contractor.

After graduating from the University of Houston, Eric took a job as an electronic technician and installed and serviced life safety systems in high-rise buildings. After seven years he went to work for Dow Chemical as a power distribution engineer. His work with audio systems had made him very sensitive to grounding issues and he took this experience with him into power distribution. Because of this expertise, Eric became one of Dow’s grounding subject matter experts. This is also how Eric met Mike Holt, as Mike was looking for grounding experts for his 2002 Grounding vs. Bonding video.

Eric taught the National Electrical Code for professional engineering exam preparation for over 20 years, and has held continuing education teacher certificates for the states of Texas and New Mexico. He was on the electrical licensing and advisory board for the State of Texas, as well as on their electrician licensing exam board. Eric now consults for a Department of Energy research laboratory in New Mexico, where he’s responsible for the electrical standards as well as assisting the laboratory’s AHJ.

Eric’s oldest daughter lives with her husband in Zurich, Switzerland, where she teaches for an international school. His son served in the Air Force, has a degree in Aviation logistics, and is a pilot and owner of an aerial photography business. His youngest daughter is a singer/songwriter in Los Angeles.

Mario Valdes Jr. is a member of the technical team at Mike Holt Enterprises, working directly with Mike Holt in researching, re-writing, and coordinating content, to assure the technical accuracy of the information in the products.

Mario is licensed as an electrical contractor, most recently having worked as an electrical inspector and plans examiner for an engineering firm in South Florida. Additionally, he was an electrical instructor for a technical college, teaching students pursuing an associate degree in electricity. He taught subjects such as ac/dc fundamentals, residential and commercial wiring, blueprint reading, and electrical estimating. He brings to the Mike Holt team a wealth of knowledge and devotion for the NEC. 

He started his career at 16 years old in his father’s electrical contracting company. Once he got his Florida State contractor’s license, he ran the company as project manager and estimator. Mario’s passion for the NEC prompted him to get his inspector and plans review certifications and embark on a new journey in electrical Code compliance. He’s worked on complex projects such as hospitals, casinos, hotels, and multi-family high-rise buildings. Mario is very passionate about educating electrical professionals about electrical safety and the National Electrical Code.

Mario’s a member of the IAEI, NFPA, and ICC, and enjoys participating in the meetings; he believes that by staying active in these organizations, he’ll be ahead of the game, with cutting-edge knowledge pertaining to safety codes.

When not immersed in the electrical world, Mario enjoys fitness training. He resides in Pembroke Pines, Florida, with his beautiful family, which includes his wife and his three sons. They enjoy family trip getaways to Disney World and other amusement parks.