Self-consumption term

Last modified: 01 Aug 2025

Create terms for self-consumption chart

Create default-defined terms for a system in order to display the Self-consumption chart. The self-consumption term itself is by default calculated based on the generated energy and the feed-in (= grid export) values that come from your grid connection meter.

Prerequisites

The system has a grid connection meter installed.

Steps

At SYSTEM LEVEL, go to System configuration > Calculations > Terms.
In the area Self-consumption, select Create terms.
In the appearing window, select your system’s grid connection Meter.
Select Save.

Now, all the necessary terms are created automatically with their default definitions and the Self-consumption chart appears at SYSTEM LEVEL in the Evaluation tab.

Further actions

Recalculate all terms to update your data. See Recalculation of terms.

Troubleshooting

Problem

Feed-in (grid export) and grid import are reversed in the Self-consumption chart.

Cause

The “reference arrow direction” on your data logger or meter has been incorrectly configured. This causes the power transformer to reverse the values for grid import and export and results in an incorrect self-consumption chart.

Solution

At SYSTEM LEVEL, go to System configuration > Calculations > Terms.
In the area Self-consumption, select Edit in the header of the area.
Tick the check box Change import/export direction.
Select Save.

The values in the self-consumption chart are corrected now.

Note

Alternatively, correct the configuration on your data logger or meter, or ensure the power transformer is connected properly. BLUE'LOG ONLY If using a blue’Log, see Meters for correcting these configurations.

Note that the historical data will still be incorrect in this case.