Technologie-Leitfaden

Smart Meter: Die Zukunft des deutschen Messwesens

Deutschland ersetzt per Gesetz jeden alten Stromzähler durch ein intelligentes Messsystem (iMSys). So funktioniert es.

iMSysSMGWBSI TR-03109MsbGGWACLS15-min readings

Was ist ein iMSys?

An intelligent metering system in every home

An iMSys consists of a Smart Meter Gateway (SMGW) and a modern measuring device (mME). The SMGW is the brain — it encrypts data, authenticates market participants, and communicates readings automatically. The mME is a digital meter that counts consumption but has no communication capability on its own.

SMGW (Smart Meter Gateway)

Certified by BSI under TR-03109. Encrypted, authenticated, tamper-resistant. The SMGW is the secure router between your meter and the energy market. It decides who gets which data and when.

mME (moderne Messeinrichtung)

A digital meter that shows consumption on an LCD display but has no communication capability. It just counts. The SMGW connects to it via the LMN and makes it “smart.”

GWA (Gateway Administrator)

The company that remotely manages and updates your SMGW. Usually the MSB. Controls firmware, certificates, reading schedules, and network configuration — all over the WAN.

CLS (Controllable Local System)

Smart home devices the SMGW can control via the HAN: heat pumps, EV chargers, battery storage. Enables demand response — the grid operator can signal the SMGW to reduce load during peak hours.

Der Rollout-Weg

From government mandate to automated 15-minute readings — click each step or press Auto Play to walk through the full smart meter rollout.

Smart Meter Rollout (7 steps)

Klicken Sie auf einen Schritt oder drücken Sie Abspielen

Aufbau eines iMSys

The SMGW sits at the center of three network zones. Click each zone to see what connects to it.

Inside an iMSys

Click a network zone to explore its connections

Smart Meter Gateway (SMGW)

BSI TR-03109 certified — connects all three zones securely

Wichtige Zahlen

2032

100% rollout mandate deadline

15 min

Reading interval granularity

TR-03109

BSI security certification

3 zones

HAN + LMN + WAN per SMGW

How leitnetz supports the rollout

leitnetz automates the entire WiM process chain that smart meter installations trigger: Beginn MSB, Ende gMSB, device registration, MSCONS ingestion, and APERAK acknowledgements. When a technician installs a new SMGW, the market communication flows automatically.

Vorheriger Leitfaden

ESA

Energy service providers and meter data access

Nächster Leitfaden

End-to-End Journey

One switch, five processes — the complete picture