Correction factor on imported data? (and historical...?)

Questions
#1

Hi,

I have a PV system that is already running since 2009 and the total power generated from my invertor is (slightly) misaligned with the certified meter.

e.g. The certified meter now reports 45000kWh generated over the years, while my inverter only measured ~44700kWh…
Only a very small drift I know, but still there must be other out there with even larger deviations…

Is there any possibility to ‘correct’ the data and input the above datapoints so historical data is updated and future imports are also corrected ???

Thanks,
Nick

#2

Historic data would need to be adjusted manually with a spreadsheet etc, newly uploaded data may be adjusted using a rule, depending on the upload method.

e.g. Auto Uploader method -