In this episode, the host revisits the foundation of the podcast by reading and analyzing Article 690 of the newly released 2026 National Electrical Code (NEC). The session provides a detailed walkthrough of the article, discussing its application, key updates, and specific requirements for Solar Photovoltaic (PV) systems. The podcast covers various sections, including general and specific equipment requirements, wiring methods, grounding and bonding, and rapid shutdown protocols for PV systems. The episode also includes historical context, teaching experiences, and insights into the evolution of the NEC. Listeners can supplement their learning by taking advanced PV or energy storage classes offered by the host and co-author Bill Brooks.
 
Topics Covered:
NEC Article 690: Scope and System Types
690.2 Listing Requirements for PV Equipment
690.4 General Requirements for PV Systems
690.7 Maximum DC Voltage Calculations
690.8  Circuit Sizing and Equipment
690.9 Overcurrent Protection in PV Systems
690.12 Rapid Shutdown of PV Systems
690.13 Disconnecting Means for PV Systems
690.31 Wiring Methods and Materials
690.31(B) Identification and Grouping of Conductors
690.31 (C) Wires and Cables
690.32 Component Interconnections
690 Part V Grounding and Bonding
 
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