# Excess-energy meter

Canonical URL: https://eloragrid.ai/symbols/excess-energy-meter
Publisher: Elora Grid
Updated: 2026-10-28
Lookup label: kWh>
Drawing use: SLD, Schematic
Reference families: IEC

Integrating meter that counts only the energy taken while power is above a set threshold.

## In plain English

### What does Excess-energy meter mean?

An excess-energy meter records energy only for the part of the load above a set power level. It was used for tariffs that penalised consumption beyond an agreed capacity, and the same idea appears in modern meters as threshold registers.

### A simple example

The symbol identifies the excess function but not the threshold, which is a contractual value that must be written beside the meter. Without that value the register cannot be interpreted or checked.

### What the drawings help you do

Find the stated power threshold. Check the register is read with the main energy register. An excess-energy meter counts only energy above a threshold; a maximum-demand meter records the highest average power.

### This particular reference

Integrating meter that counts only the energy taken while power is above a set threshold. An excess-energy meter counts only energy above a threshold; a maximum-demand meter records the highest average power.

### Terms

- Schematic: A drawing showing function and connections rather than physical appearance.

Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference
A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.

- [IEC graphical symbols for diagrams](https://tc3.iec.ch/tc-activity/graphical-symbols-for-diagrams/)
- [Power and energy measurement quantities](https://www.se.com/ph/en/faqs/FA343278/)


## What it represents

An excess-energy meter records energy only for the part of the load above a set power level. It was used for tariffs that penalised consumption beyond an agreed capacity, and the same idea appears in modern meters as threshold registers.
The symbol identifies the excess function but not the threshold, which is a contractual value that must be written beside the meter. Without that value the register cannot be interpreted or checked.

## How to read it

- Find the stated power threshold.
- Check the register is read with the main energy register.

## Information to show or reference

- State threshold power
- Reference tariff clause
- Show measuring inputs

## Important distinction

An excess-energy meter counts only energy above a threshold; a maximum-demand meter records the highest average power.

## Facts

- Integrated quantity: Energy above a set power
- Key setting: Power threshold
- Preview: Independent educational concept; consult the applicable standard and project legend for the exact graphic

## Public references

- [IEC graphical symbols for diagrams](https://tc3.iec.ch/tc-activity/graphical-symbols-for-diagrams/) — IEC. IEC context for graphical symbols used in diagrams; no IEC graphic is reproduced.
- [Power and energy measurement quantities](https://www.se.com/ph/en/faqs/FA343278/) — Schneider Electric. Public explanation of energy and power measurement quantities used by meters.

## Graphic scope

Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.