About This Service
Performance Evaluation in Phoenix
A Performance Evaluation in Phoenix assesses a solar array’s energy output and efficiency against expected generation for Phoenix metro rooftops and commercial arrays. It suits homeowners, property managers and business owners who suspect shading, soiling, inverter limits or unseen cell degradation are cutting production. The goal is a clear efficiency metrics report and a ranked list of follow-up actions that restore or protect system output.
The field review combines an on-site visual check with output analysis from the inverter or data logger. Deliverables include measured energy output, percent efficiency versus nameplate capacity, identification of underperforming panels or strings, and notes on shading patterns during peak sun hours. Optional diagnostics may include thermal imaging or IV-curve testing when a string or panel shows anomalous behavior. In Phoenix, factor in desert dust accumulation, monsoon dust storms and high UV; performance losses here often trace to surface soiling plus heat-related derating rather than immediate hardware failure.
Practical expectations: provide inverter logs or production data covering at least seven days, preferably a full month, and allow roof or array access for a 45–90 minute visit. The report benchmarks current output, explains likely causes (soiling, shading, inverter constraints, normal degradation), and lists itemized follow-ups such as targeted cleaning, string repair, or shading mitigation. Not every gap has an inexpensive fix; the evaluation clarifies which actions yield the largest kWh recovery and the expected site disruption for each option.