Smart Meter
Intelligent metering system that digitally records electricity consumption and transmits data to the grid operator and consumer.
Also known as: Intelligent Metering System, Digital Electricity Meter, iMSys
What Is a Smart Meter?
A smart meter (intelligent metering system) consists of a digital electricity meter (modern metering device) and a communication module (smart meter gateway). It records electricity consumption and feed-in in real time and transmits the data in encrypted form to the grid operator.
Components
| Component | Function |
|---|---|
| Modern metering device (mME) | Digital meter with display |
| Smart meter gateway (SMGW) | Communication unit, transmits data |
| Control box (optional) | Enables remote control of consumers |
Installation Requirement
Since the Act on the Restart of Digitalisation of the Energy Transition (2023):
- From 6,000 kWh/year consumption: Smart meter installation mandatory
- PV systems from 7 kWp: Smart meter required
- All other households: Digital meter (mME) gradually from 2025
Benefits for PV System Operators
- Transparency: View generation and consumption in real time
- Dynamic tariffs: Enables the use of cheaper electricity prices
- Load management: Automatic adjustment of consumption to generation
- Variable remuneration: Future direct marketing also for small systems
Practical Tip
Annual costs for a smart meter are EUR 20—50. The investment pays off through better consumption optimisation and the ability to use dynamic electricity tariffs.
Related Terms
Grid Operator
Company that operates the local electricity grid and is responsible for grid connection and feed-in tariff payments.
Dynamic Electricity Tariff
Electricity tariff with variable pricing that changes hourly based on the wholesale electricity price -- ideal with PV and storage.
Self-Consumption
Share of self-generated solar electricity consumed directly in the household rather than fed into the grid.