691 – Large-Scale Photovoltaic (PV) Electric Supply Stations

Informational Note Figure 691.1 – I-Note No. 3 and Informational Note Figure 691.1

Change at a Glance:

A new I-Note No. 3 and Informational Note Figure 691.1 were added to Article 691 as an aid in interpretation.

691.1 Scope. [Large-Scale Photovoltaic (PV) Electric Power Production Facility Supply Stations]

This article covers the installation of large-scale PV electric power production facilities with a supply stations with an inverter generating capacity of no less than 5000 kW, and not under exclusive utility control.
Informational Note No. 1: Facilities covered by this article have specific design and safety features unique to large-scale PV facilities and are operated for the sole purpose of providing electric supply to a system operated by a regulated utility for the transfer of electric energy.
Informational Note No. 2: Section 90.2(B)(5) includes information about utility-owned properties not covered under this Code. For additional information on electric supply stations, see ANSI/ IEEE C2-2012 2017, National Electrical Safety Code.
Informational Note No. 3: See Informational Note Figure 691.1.
Figure Informational Note Figure 691.1 Identification of Large Scale PV Electric Supply Station Components.

(See NEC and illustration provided for complete figure)