I. General
705.4 Equipment Approval. All equipment shall be ap- proved for the intended use. Utility-interactive inverters for interconnection systems shall be listed and identified for interconnection service.
705.10 Directory. A permanent plaque or directory, denoting all electric power sources on or in the premises, shall be installed at each service equipment location and at locations of all electric power production sources capable of being interconnected.
705.1 Scope. This article covers installation of one or more electric power production sources operating in parallel with a primary source(s) of electricity.
FPN: Examples of the types of primary sources include a utility supply or an on-site electric power source(s).
705.2 Definitions.
Hybrid System. A system comprised of multiple power sources. These power sources could include photovoltaic, wind, micro-hydro generators, engine- driven generators, and others, but do not include electric power production and distribution network systems. Energy storage systems such as batteries, flywheels, or superconducting magnetic storage equipment do not constitute a power source for the purpose of this definition.
Point of Common Coupling. The point at which the power production and distribution network and the customer interface occurs in an interactive system. Typically, this is the load side of the power network meter.
Utility-Interactive Inverter Output Circuit. The conductors between the utility interactive inverter and the service equipment or another electric power production source, such as a utility, for electrical production and distribution network.
705.3 Other Articles. Interconnected electric power production sources shall comply with this article and also with the applicable requirements of the articles in Table 705.3.
Table 705.3 Other Articles
Equipment/System Article
Generators 445
Solar photovoltaic systems 690
Fuel cell systems 692
Emergency systems 700
Legally required standby systems 701
Optional standby systems 702
Exception: Installations with large numbers of power production sources shall be permitted to be designated by groups.
705.12 Point of Connection. The output of an intercon- nected electric power source shall be connected as specified in 705.12(A), (B), (C), or (D).
(A) Supply Side. An electric power production source shall be permitted to be connected to the supply side of the service disconnecting means as permitted in
230.82(6).
(B) Integrated Electrical Systems. The outputs shall be permitted to be interconnected at a point or points elsewhere on the premises where the system qualifies as an integrated electrical system and incorporates protective equipment in accordance with all applicable sections of Article 685.
(C) Greater Than 100 kW. The outputs shall be permitted to be interconnected at a point or points elsewhere on the premises where all of the following conditions are met:
(1) The aggregate of non-utility sources of electricity has a capacity in excess of 100 kW, or the service is above 1000 volts.
(2) The conditions of maintenance and supervision ensure that qualified persons service and operate the system.
(3) Safeguards, documented procedures, and protective equipment are established and maintained.