Performance ratio comparison chart

Last modified: 23 May 2025

Chart

Basic info

Description

The chart displays the results of all performance ratio (PR) calculations configured for your system over the chosen period (month/year/total).

Prerequisites

KPI editor
You have added multiple PRs. See KPI editor for PR and system availability.

Further details

PR chart thresholds

Define the thresholds for different performance levels (displayed as green, yellow, and red) that are reflected in the Performance ratio chart and the Performance ratio comparison chart:

Portfolio-wide for every system: On PORTFOLIO-LEVEL, under Administration > Customization > Design > Chart thresholds.
System-specific for each system separately: On SYSTEM-LEVEL, under System configuration > Calculations > Performance Ratio > PR chart thresholds.

Caution

If your site has multiple power plant controllers (blue’Log XC data loggers or third-party PPCs), each controller should be configured as a separate system, not as a subsystem. Otherwise, the performance ratio will not be calculated.

Example: A site has PV production across three rooftops, each with its own PPC. In this case, configure each rooftop in VCOM as a separate system.

To view the overall PR for the entire site, you can combine these individual systems into a virtual system in VCOM.

If you require further assistance, contact Support.