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Yes, but an expansion is more than bolting on modules. It can affect the utility interconnection, net-metering eligibility, inverter capacity, the electrical calculations, permits, incentive eligibility and monitoring. Incentive rules matter particularly when panels are added to a system already receiving a generation incentive.

A microinverter is a small inverter installed at or near an individual module, so each panel converts on its own channel. That gives module-level visibility and limits the effect one underperforming panel has on the others around it.

The municipal construction department reviews and inspects the work under the Uniform Construction Code, but the substantive electrical requirements come from the statewide Electrical Subcode rather than from local preference. Municipalities may also administer zoning requirements where those apply.

A membrane roofing system designed for low slopes, rather than conventional shingles forced onto a pitch they were not made for. Many houses have both, and the transition between the two is a detail worth getting right because it is where the two systems have to meet.

Lifetime is a defined warranty term, not a promise that every future roof expense is covered without limit. Coverage changes over the years and carries eligibility rules, exclusions, a claims procedure and proration provisions. The written warranty is the thing to read; the word on the brochure is not the coverage.