What is the focus of Article 691?

Article 691 of the National Electrical Code (NEC) specifically addresses the requirements for large-scale photovoltaic (PV) electric power production facilities. This section provides guidelines and standards for ensuring the safe and effective installation, operation, and maintenance of these facilities, which can generate significant amounts of electricity from solar energy.

The focus on large-scale PV systems is critical because of the unique challenges and considerations related to their electrical design, including their integration into the grid, safety measures for workers and the public, and compliance with relevant electrical codes. These solar power facilities often involve complex electrical configurations, significant power generation capabilities, and large physical footprints, all of which necessitate detailed code provisions to manage safety and functionality.

Understanding the focus of Article 691 highlights its importance in the expanding field of renewable energy and how the electrical industry adapts to modern energy production methods while ensuring compliance with safety standards.