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Greenbyte Documentation

Performance Index

The Performance Index (PI) is the ratio of the actual energy production of the inverter over the theoretical energy (as defined by the selecting potential power method). PI can be used to find inverters that under-perform during normal operation.

Technology

Solar

Remarks

Required metadata fields:

  • Performance Irradiance Cut-In (W/m2) (Inverter metadata 13)

Equation
Performance_Index_-_Equation.png

Where:

PI

is the Performance index

PCP,perf

is the Cascading Potential Power - Solar

I

is the Solar Irradiance Reference

Cut-inIP

is the Performance Irradiance Cut-In (W/m2) (Inverter metadata 13)

T

is the device resolution in hours

E

is the Energy or Power with Fallback

Inputs
Performance_Index_-_Inputs.png
Usage Example
Performance_Index_-_Usage_Example.png