What needs to be clarified
Review consumption data and arithmetic, the observation period’s representativeness and whether the annual estimate can be compared with this refrigerator’s label and documentation.
Materials to prepare
- Full report with time-stamped energy-meter readings
- Energy label and product sheet for the exact model
- Loading, door-opening, setting and room-temperature log
What to compare
Identify startup, stable operation and defrost cycles where recorded. Check energy units and interval length, excluding other appliances supplied through the meter. Recalculate daily averages for comparable periods, show variation and separately describe departures from the method used for the declared characteristic.
Possible outcome of the analysis
The review may provide a corrected calculation, assess annualisation and propose further observations if the record cannot check declared consumption under comparable operating conditions.
Limits of the conclusions
High startup consumption does not establish compressor failure. Domestic monitoring is not a standard test; without stable operation, annual extrapolation remains a conditional estimate with limited applicability.