The introduction of 5G has significantly changed mobile communication technology: high data rates, extremely low latencies and almost comprehensive coverage.
However, not every application requires the extremes of these capabilities. Many IoT devices, such as industrial sensors or wearables like smart watches, have different requirements: energy efficiency, long battery life and cost-effective hardware.
With 5G RedCap (Reduced Capability), a mobile communications standard has recently been defined that is tailored precisely to these requirements. In the energy sector in particular, RedCap opens up new possibilities for connecting devices efficiently, robustly and economically.
What is 5G RedCap?
5G RedCap is a new extension of the 5G standard that focuses on end devices with lower performance and data requirements, lower energy consumption and cost-sensitive hardware.
The term ‘reduced capabilities’ – or more commonly ‘RedCap’ – refers to the fact that certain performance features have been deliberately reduced in order to minimise the cost and energy consumption of the respective end devices. The new version is aimed at applications and devices where the focus is not on extremely low latency or high data rates, but rather on reliability, availability and efficiency.
Classic examples include wearables, industrial sensors and asset tracking devices – in other words, anywhere where moderate data rates and long battery life are more important than maximum bandwidth.
Classic examples include wearables, industrial sensors and asset tracking devices – in other words, anywhere where moderate data rates and long battery life are more important than maximum bandwidth.
5G RedCap as a supplement to the three use cases of 5G
5G RedCap essentially represents a compromise between eMBB (high transmission rates), mMTC (designed to serve many industrial devices simultaneously) and URLLC (extremely short latency times for reliable data transmission).
With medium throughput, good network coverage and acceptable latency, 5G RedCap is powerful, but not at the top level of the respective ‘real’ 5G scenarios.
Instead, RedCap offers sufficient data rates (30–150 Mbit/s), moderate latency and reduced costs. This is ideal for IoT devices, wearables, cameras or industrial applications.
What is the difference between 5G RedCap and the previous 5G variant?
Compared to the classic 5G variant, RedCap is significantly leaner in technical terms:
| Features | Standard 5G (uRLLC, eMBB) | 5G RedCap |
| Data rate | Very high (1 Gbps+) | Moderate (100–200 Mbps) |
| Latency | Very low | Low (higher than standard 5G) |
| Energy consumption | High | Significantly lower |
| Complexity & costs | High | Low |
| Target devices | Mobile devices, fixed wireless routers | wearables, IIoT, gateways |
Typical areas of application for 5G RedCap
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5G RedCap is ideal for:
Wearables – for example: Smartwatches, Health‑Tracker, XR‑glasses
Industrial sensor systems – for production facilities, machine monitoring
Video surveillance systems – e.g. real-time security cameras
Smart grids & smart metering – for controlling and monitoring electricity grids
Private 5G networks – e.g. in factories or company locations with moderate data requirements
What are the advantages of 5G RedCap?
- Lower costs: Simplified hardware designs reduce material, certification and production costs.
- Longer battery life: Reduced energy consumption enables long operation without battery replacement.
- Wide range of applications: From wearables to industrial communication to smart city applications.
5G RedCap in the energy sector
5G RedCap will be an important building block in the future, not only for industrial applications, but also specifically in the energy sector. IoT devices do not usually require the full bandwidth offered by 5G. However, they benefit from low latency and network reliability.
The rollout of smart meters is a particularly interesting case, as it meets requirements for controllability and reliable accessibility. According to §29 (3) s.1 of the MsbG, all households in Germany are to be equipped with smart electricity meters by 2032. 5G RedCap offers decisive advantages for such systems:
- Low energy consumption, resulting in a better energy balance.
- Cost-efficient hardware, which is crucial for large quantities.
- Use of existing 5G infrastructure without having to set up separate communication solutions.
- Digitalisation in the smart grid and applications for broad sensor networks can be implemented ideally.
In addition, 5G RedCap can be used to efficiently integrate and control decentralised energy systems such as photovoltaic systems, heat pumps or wall boxes in order to increase grid stability and energy efficiency.
This is why 5G RedCap could be worthwhile for the energy industry:
5G RedCap provides the energy industry with a powerful tool for a scalable, intelligent and sustainable energy future.
The technology combines the advantages of modern 5G networks with the requirements of energy-efficient, durable devices. RedCap will not only support the rollout of smart meters, but also enable a wide range of other applications in the energy sector.
The use of 5G RedCap is still in its infancy. Widespread introduction will take time.
Current and future components are already taking this trend into account by offering both technologies in one. This gives users the opportunity to invest in tomorrow’s technology today.
