A sales rep is preparing a preliminary estimate for a 9-kW home system in a neighborhood with a strict municipal utility, the customer wants net metering, and the install is six weeks out. Which utility interconnection requirement should the estimator recognize first to keep the proposal realistic?

For a realistic estimate, identify the application, agreement, and disconnect rules this municipal utility approves for the proposed 9-kW net-metered system. Requirements can vary by utility and system category, and a strict municipal utility may set specific procedures or equipment rules. Confirming the applicable package early helps ground the estimate and project scope in the actual interconnection process. An approach that confirms the utility-approved application and agreement for net metering but does not check disconnect requirements is incomplete: those rules are part of the interconnection determination and can affect equipment, labor, and cost. Relying on a state’s standard application, agreement, and disconnect rules without verifying municipal utility-specific requirements assumes those standards govern; state guidance may be a reference, but it does not replace the utility’s applicable rules. Choosing requirements for a non-export design does not match the customer’s requested net-metering arrangement, even if the system size is correct. Exam caveat: a 9-kW rating alone may not establish the review category, since utilities can classify projects using additional factors; do not infer required forms or process from size alone. Practical check: consult the utility’s current interconnection materials or confirm directly which application, agreement, and disconnect specifications apply to this system and service location.