PR/Performance ratio – comparison chart

Last modified: 2026-06-15

Chart

View the chart at System level in the Evaluation tab in the Section: System KPIs.

Basic info

Description	The chart displays the results of all PR/performance ratio calculations configured for your system over the chosen period (month/year/total). The color of the background corresponds to the thresholds specified for the performance level evaluation.
Prerequisites	VCOM module KPI editor. Multiple PRs are added. See Performance ratio with the KPI editor.
Further details	Thresholds to rate performance ratio With the VCOM module KPI editor, you can edit the thresholds that rate the PR. See PR chart thresholds.

Description

The chart displays the results of all PR/performance ratio calculations configured for your system over the chosen period (month/year/total). The color of the background corresponds to the thresholds specified for the performance level evaluation.

Prerequisites

VCOM module KPI editor.
Multiple PRs are added. See Performance ratio with the KPI editor.

Further details

Thresholds to rate performance ratio

With the VCOM module KPI editor, you can edit the thresholds that rate the PR. See PR chart thresholds.

Caution

If your site has multiple power plant controllers (blue’Log XC data loggers or third-party PPCs) and you want to monitor each individually, 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.

Note

Find further information on the general functions within charts under Evaluations & charts.