Greenbyte Documentation

Performance Index Time Window

Shows the performance index, limited to a selected time window within a day. This signal is only available in Data Studio.

Technology

Solar: Inverter

Equation
performance-index-time-window-eq.jpg

where:

PITW

is Performance Index Time Window

Etheoretical

performance-index-time-window-e-theoretical-eq.jpg

Eactual

performance-index-time-window-e-actual-eq.jpg

E

performance-index-time-window-e-eq.jpg

Pcasc

is Cascading Potential Power for performance

Iref

is Solar Irradiance Reference

Cut-inIP

is Performance Irradiance Cut-In (W/m2)

t

is the time step

tTWstart

Performance Time Window Start (hh), a defined starting hour. t>tTWstart

tTWend

Performance Time Window End (hh), a defined ending hour. t<tTWend

T

is the device resolution in hours.

Inputs
performance-index-time-window-in.jpg
Example

In this example you can see how the Performance Index is calculated for the full day, but Performance Index Time Window (green line) is only calculated for the part of the day defined by the time window.

performance-index-time-window-ex.png