KPIs Formulas

KPIs formulas and explanation of the usual KPIs and Parameters behaviour

PR Calculation
Below you will find the 15min PR calculation formulas Raw PR (site level) Raw PR=(Exported Power Site/ Nominal Power DC)/(Irradiance PoA Average/100...
Sat, 14 Apr, 2018 at 12:52 PM
Performance Ratio exceeding 100%
The PR calculation is performed according to IEC 61724, as the AC system yield divided by the plane of array insolation. You can recalculate using the P...
Thu, 30 May, 2019 at 10:27 PM
Availability (AL) Calculation
The Availability (AL) parameter onsite level is calculated as weighted average from the corresponding availabilities on inverter level. Availability cal...
Mon, 8 Apr, 2019 at 10:54 PM
KPI values (e.g. PR, Availability) not updated (normal networking circumstances)
If PR and Availability are not updating you should check the following conditions is Irradiance PoA Average> the relative threshold the update of Si...
Fri, 16 Feb, 2018 at 9:45 PM
Calculation sources of parameter values
Active Energy Towards the Utility value is received from the multimeter which is placed in PCC. If there is no multimeter in the PCC the value is comin...
Thu, 20 Feb, 2014 at 2:24 PM
Energy values after multimeter's outage (nightly hours)
After a multimeter outage, the respected power values will be missing for this specific time period. In the processes of calculating the energy by int...
Thu, 26 Jun, 2014 at 12:33 PM
Description of String Availability and thresholds
String availability at string level show if a string is producing or not (it takes values 0 or 1). String level availability at site level is calculated...
Sat, 14 Apr, 2018 at 6:53 PM
Description of DC Box/SMU availability and thresholds
DC box level availability at Insolar portal can be found as SMU level availability. For the scope of this article the term DC box level availability wil...
Sat, 14 Apr, 2018 at 6:55 PM
Total Produced Energy: Revenue Calculator tab vs Energy tab (old portal)
Total Produced Energy as depicted in "Revenue Calculator" tab, is received from the parameter "Cumulative Active Energy Towards the Uti...
Fri, 29 Dec, 2017 at 7:10 PM