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Article 710 covers stand-alone electrical power systems that operate independently of the utility grid. These off-grid systems commonly use solar PV, generators, batteries, wind turbines, or a combination of power sources to supply electricity where utility power isn't available or isn't used. The article establishes requirements for system capacity, equipment approval, source identification, wiring methods, and safe installation practices to ensure reliable and code-compliant operation. If a system is interconnected with the utility, Article 705 applies instead.
Article 710 covers stand-alone electrical power systems that are not interconnected with an electric utility. These systems generate and distribute electricity independently using sources such as solar photovoltaic (PV) systems, battery energy storage systems (BESS), generators, wind turbines, or hybrid combinations.
The article provides requirements for the design, installation, operation, and identification of stand-alone systems to help ensure they operate safely and reliably. If a system is connected to the utility grid, Article 705 (Interconnected Electric Power Production Sources) applies instead.
Quick Hit: Off-grid power? Think Article 710. Utility-connected power? Think Article 705.
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