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Notifications
Fig.: Performance Monitoring with notication and inverter
Inverter 1, Inverter 1 house Inverter 2, Inverter 2
house
Generator Power= 5500 Wp 3300 Wp
Current power output = 3950 W = 2950 W
Currentefciency = 71.81 % = 89.39 %
Inverter with a deviation Reference Inverter
Inverter has generated the most power with its value of 0.8939 and is thus used as the Reference Inverter.
3.2.2 Calculation and Explanation of the Notification
In regard to the reference inverter, inverter 1 is compared to all of the inverters in the same module field (in
the example only output is used).
A deviation of 19.65% is determined based on the comparison of the generator capacity and IRV forecast.
Calculating the Deviation for Inverter 1
Deviation Calculation
Inverter 1 IRV calculation (5500 x 89.39)100= IRV 4916 W
EfciencyofInverter1 (3950 W: 5500 W)* 100= 71.81%
This corresponds to 71.81 % of the generator power or a value of 0.7181 kWp.
Deviation as a percentage
IRV Inverter 1 - IAV Inverter 1 4916 W -3950 W= 966 W
Deviation as a percentage (966 W: 4916 W)* 100= 19.65 %
Inverter 2 is used as the reference inverter since it was the most effective one at the time of the measure-
ment. Inverter 1 should have produced an output of 4916 W based on the measurement and the calcula-
tions comparing all of the inverters in the same module field. The actual output was 3950 W, a deviation of
19.65%. This caused a notification to be sent.
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