John Wiles, Author at IAEI Magazine

John Wiles

John Wiles retired in April 2013 as a Senior Research Engineer at the Southwest Technology Development Institute at New Mexico State University. However, he works part time as 25% employee and continues to assist the PV industry, electrical contractors, electrical inspectors, and purchasing agencies in understanding the PV requirements of the National Electrical Code (NEC). He is an active member on six UL Standards Technical Panels. John served as Secretary for the PV Industry Forum involved with Article 690 of the NEC. Over 30 submissions were accepted for the 2011 NEC and 55 proposals were submitted for the 2014 Code. He drafted the text for Article 690 in the 2005 NEC Handbook and 2008 NEC Handbook. Fieldwork involves balance of systems design for PV systems, inspections and acceptance testing of PV systems, test and evaluation of PV components, and the design and installation of data acquisition systems. He bought his first codebook in 1960 and installed his first PV system in 1984. He lived in an off-grid, PV/wind-powered home (permitted and inspected, of course) with his wife Patti, two dogs, and a cat for more than 16 years. His retirement home currently has a 8.5 kW utility-interactive PV system will full-house battery backup and now has three dogs and two cats. He writes the “Perspectives on PV” series of articles for the International Association of Electrical Inspectors in their IAEI News magazine and has published an IAEI book on PV and the NEC for inspectors and plan reviewers. He has a Master of Science Degree in Electrical Engineering.

Photovoltaic Power Systems and Equipment — Getting out of the Trees and Looking at the Forest

As photovoltaic power (PV) systems become increasingly common due to an ...

Direct Currents, Circuits & Microgrids Requiring Inspections in the Not-Too-Distant Future

Various organizations, including manufacturers, universities, and specifically tailored groups devoted to ...

Upping the Game

Some actions can make the residential, commercial, and even larger PV ...

Addressing the Complexities of Load Side PV Connections

As appliance and HVAC system efficiencies increase, load-side PV connections associated ...

Working with a Pandemic, Funding Limitations, and Supply-Side PV Connections

Supply-side connected PV systems require renewed attention due to the more ...

The Art and Science of Energy Storage

There have been substantial changes in various sections of the 2020 ...

EMS-MID-PCS-DCM-ESS — The New Guys in Town

This article will present an overview of some of the new ...

Disco Madness — Disconnects in PV Systems

PV disconnects provide a means to separate various portions of a ...

Getting Power from the PV Array to the Utilization Equipment

Several different wiring methods may be used to route the power ...

More PV Equipment on the Roof

Numerous Code requirements apply to the PV array and other equipment ...