To fully realize the advantages of 5G in China, telecom operators must collaborate closely with electricity providers. A new report produced by China Telecom, Huawei and the State Grid of China evaluates how the smart grid can be enhanced using 5G network slicing.
China’s Made in China 2025 initiative aims to modernize the nation’s manufacturing capabilities, a goal that, much like Industry 4.0 programs elsewhere, depends on high-performance, low-latency networks. In October, an announcement from the Chinese government emphasized increased financial support for major projects to accelerate this transformation.
Smart grid development is central to that strategy. The report describes the smart grid as the foundation of intelligent energy systems and highlights its role in promoting coordinated economic and social development and long-term sustainability.
The analysis explores multiple 5G network slicing scenarios within a smart grid context, many of which align closely with Internet of Things (IoT) applications. One example covers intelligent distributed feeder automation. Historically, distribution automation relied on local, single-node processing, which could result in hour-long outages after a fault. The report outlines an evolution from localized processing to centralized automatic control and ultimately to distributed intelligent processing—reducing outage durations to the millisecond range.
Focused on network-level assessment, the report is technical and best suited to specialists. Still, it articulates the practical benefits of 5G network slicing in clear terms: “5G network slicing is designed to handle specific service requirements, meets differentiated service level agreements, and automatically builds isolated network instances on demand.”
According to the report, 5G network slicing delivers end-to-end guarantees for service level agreements, enforces service isolation, enables customizable on-demand network functions, and supports automation. These capabilities allow communications service providers to dynamically allocate resources and offer “network as a service.” The technology promises more agile service delivery, stronger security isolation, and more flexible commercial models for industrial customers.
A China Telecom spokesperson described the collaboration as a significant milestone: “We hope that the three parties can fully leverage the resources from national major projects and China Telecom’s 5G pilot initiatives to advance joint innovation and build an end-to-end 5G ecosystem. The release of this report marks substantial cooperation between operators and vertical industries in the 5G application field.”
The spokesperson added that the next steps involve validating 5G network slicing capabilities in power grid service scenarios and simplifying network slicing deployment through closer partnerships among State Grid, Huawei and China Telecom. These efforts aim to make network slicing more practical and easier to adopt for power industry use cases, ultimately supporting more resilient, efficient and intelligent energy networks.
By integrating 5G slicing into grid operations, utilities can achieve differentiated performance levels tailored to diverse applications—such as fast-protection signaling, real-time monitoring, and massive IoT connectivity—while maintaining strict isolation and reliability for critical services. This approach helps reconcile the competing requirements of latency-sensitive control traffic and high-capacity monitoring data, enabling utilities to optimize both operational performance and cost efficiency.
As pilot projects expand and standards mature, the partnership model demonstrated by China Telecom, Huawei and State Grid can serve as a blueprint for combining telecom expertise with power-sector requirements. Close cooperation between operators and utilities will be essential to deliver the secure, low-latency, and highly available communications infrastructure that modern smart grids demand.