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27/03/2025 - Article - The Energy Transition

Smart meters: the key to a smarter energy future

Introduction

With the passing of the Act to Relaunch the Digitalisation of the Energy Transition in May 2023, Germany’s Bundestag and Bundesrat fundamentally revised, simplified, and streamlined the legal framework for the rollout of smart meters. Since then, the slow adoption of smart meters has picked up significant momentum. More households have installed smart metering systems (iMSys) since the new law came into effect than in the entire period since the Metering Point Operation Act was introduced in 2016. By 31 December 2024, the Bundesnetzagentur had recorded over 1,158,000 smart meter installations.

On 30 June 2024, the Federal Ministry for Economic Affairs and Climate Action (BMWK) published its first digitalisation report (Resilienz weiter stärken, den Systemnutzen der Digitalisierung der Energiewende konsequent heben), assessing whether the legal framework for energy transition digitalisation meets current and future demands. The report also includes recommendations for improving system resilience and the future viability of digitisation. In response, the ministry’s Energy Industry Law Amendment Act has implemented key measures to enhance the economic conditions for smart meter deployment.

The rollout of smart meters is fundamental to the digitalisation of the energy transition and essential for achieving our climate targets. Smart meters allow consumers and businesses to better manage their electricity usage, optimise the integration of renewable energy sources, such as solar power, and take advantage of new tariffs. They also make it possible for renewable energy installations and “controllable consumers” like electric cars and heat pumps to be efficiently integrated into the power grid.

You will find more information on smart meters below.

Why do we need smart meters?

Achieving Germany’s ambitious energy and climate goals – such as an 80% share of renewable energy by 2030 – requires widespread digitalisation. The enormous expansion of renewable energy and the increasing use of electricity to power the mobility and heating sectors mean that the pace of digitalisation needs to be stepped up. As we transition to a cleaner energy future, the requirements for secure and efficient grid operation are increasing. In the future, electricity producers and consumers will be linked via a smart grid that will allow them to communicate with each other digitally. Smart meters are the foundation for this integrated system.

What is a smart meter and what are its advantages?

A smart meter, also known as an smart metering system, is part of the digital infrastructure for our clean energy system of the future. It consists of a digital electricity meter (modern metering device) and a smart meter gateway (secure communication interface).
Unlike traditional analogue meters, which just show current meter readings, digital electricity meters also provide real-time insights into energy consumption, offering detailed usage data by the day, week, month, or year.

The Smart Meter Gateway connects consumers, energy producers, and grid operators using the securest of technology, permitting meters to be connected to the smart grid in a way that meets data protection and data security standards.

At a glance

Smart meter = modern metering device (digital electricity meter) + smart meter gateway (secure communication interface)

What are the benefits of smart metering systems for household customers?

Smart meters offer a range of advantages, helping households save energy, reduce costs, and improve convenience.

Greater transparency and energy savings

Smart meters give you much more detailed insights into your electricity consumption over time, allowing you to track usage patterns and understand your electricity bill more easily. This enables you to reduce your consumption and cut costs.

More accurate and convenient billing

With automatic data transmission to your metering operator, there’s no need for manual meter readings – eliminating the hassle of home visits and ensuring more accurate billing. This saves time, effort and money.

Access to dynamic and variable tariffs

Since 1 January 2025, electricity suppliers now have to offer consumers dynamic and variable tariffs that allow them to adjust usage based on real-time electricity prices. This is particularly beneficial for those using heat pumps, electric vehicle chargers, or battery storage, helping them to take advantage of lower energy costs.

A single system for electricity, gas, water and heating

Smart meter gateways are designed to integrate multiple utilities, including gas, water, and heating. If your metering operator supports it, you can monitor all your energy consumption in one place, such as via an app – making it easier to manage costs and improve efficiency.

Support for a successful energy transition

Smart metering systems are needed to integrate more electricity from renewable energy into the electricity grids. Renewable sources like wind and solar are weather-dependent, but the electricity grid needs to remain balanced. The transport sector is also increasingly switching to renewables. When lots of people charge their electric cars after work, the grids reach their limits. Smart meters help grid operators harmonise generation and consumption and ensure that better use is made of the electricity grid.

Further information (in German)

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