Comminent has shipped more than 500,000 Wi-SUN-compliant communication modules using Silicon Labs’ EFR32FG28 wireless SoC, a milestone tied to India’s smart energy metering rollout. The announcement is notable because it sits at the intersection of national RF mesh standardization, utility-scale AMI deployment and embedded security requirements.
One of the hardest problems to address with smart metering is building a field-area network that can cope with dense urban installations, dispersed rural assets, utility security requirements and long operating lifecycles without locking every participant into a proprietary communications stack.
That is the context behind Comminent’s shipment of more than 500,000 Wi-SUN-compliant communication modules powered by Silicon Labs’ EFR32FG28 Wireless SoC. The modules are intended for India’s smart grid modernization efforts, where the Revamped Distribution Sector Scheme is driving a large-scale smart meter rollout and where RF communications are being standardized around Wi-SUN Field Area Network technology.
A Wi-SUN milestone tied to national standardization
The most important detail is not simply the shipment number. Wi-SUN has been discussed for years as a utility-grade mesh option, but this announcement is linked to a specific regulatory and deployment environment: India’s Bureau of Indian Standards has adopted the Wi-SUN FAN specification, including IEEE 2857-2021 and ISO/IEC/IEEE 32857:2026, as national standard IS 18010 for smart meter RF communication networks.
That makes the Comminent-Silicon Labs milestone distinct from a typical module announcement. It is not just a new embedded radio design entering the market; it is a volume shipment of standards-compliant modules into a national smart metering context where interoperability is being formalized. For utilities and integrators, that distinction matters because AMI projects involve multiple device makers, meter suppliers, network components and lifecycle management systems. A common RF mesh standard can reduce fragmentation risk, although it does not eliminate the engineering work required to plan, deploy and operate the network.
Comminent’s module is based on Silicon Labs’ EFR32FG28, a dual-band wireless SoC that combines Sub-GHz connectivity with a 2.4 GHz Bluetooth LE radio. The announcement describes the Sub-GHz radio as optimized for India’s RF environment and positions Bluetooth LE as providing design flexibility. The device also includes a multi-core architecture with dedicated Arm cores for application processing, radio functions and edge intelligence, along with memory resources intended to support mesh networking in dense urban and geographically distributed deployments.
Why the architecture is relevant for utilities
Wi-SUN FAN differs from simple point-to-cloud connectivity models because it is designed for IPv6-based mesh networking across field devices. In practice, that changes where complexity sits. Instead of every meter depending only on a direct wide-area link, the network must support routing behavior, node density, security credentials and field maintenance across many endpoints. The use of a SoC with separate processing resources for application, radio and edge intelligence is therefore relevant: it reflects the need to handle communications and device functions in the same embedded platform without treating the radio as an isolated component.
The inclusion of Silicon Labs’ Secure Vault technology, with PSA Level 3 certification, is another practical point. The announced security features include secure key storage, anti-tamper capabilities and hardware cryptographic acceleration. For smart meters, this is not an optional layer added after deployment; the communications module participates in infrastructure that may remain in the field for years and exchange operationally sensitive utility data. A concrete implication is that module selection becomes part of the utility’s security architecture, not merely a bill-of-materials decision.
The dual-band approach also gives OEMs and system integrators a different design envelope than a Sub-GHz-only implementation. The announcement does not state how Bluetooth LE will be used in deployments, but its presence creates the possibility of local wireless interaction for design, maintenance or configuration workflows if product makers choose to implement them. That flexibility may be useful in meter rollouts where field service processes can be as important as network coverage.
Implications for the IoT supply chain
For Indian meter OEMs, the 500,000-unit shipment indicates that Wi-SUN module supply has moved beyond pilot-stage availability into volume production. For connectivity providers and AMI platform vendors, the adoption of IS 18010 means integration strategies will need to account for open, interoperable RF mesh rather than purely proprietary neighborhood-area networks.
System integrators are likely to see the biggest operational impact. A Wi-SUN-based smart meter deployment is not only a device installation exercise; it also requires attention to network topology, security provisioning, device management and long-term maintenance. Comminent’s own positioning around IPv6-compliant, open standards-based M2M communication and device management is relevant here, particularly because utilities will need tools to manage large populations of endpoints once meters are installed.
The broader industry signal is that Wi-SUN continues to find traction where the application calls for utility-controlled field-area networking rather than consumer IoT connectivity or conventional cellular IoT. India’s standardization around Wi-SUN FAN gives the technology a clearer role in smart energy infrastructure, while Silicon Labs’ participation through the EFR32FG28 shows how semiconductor vendors are tailoring embedded wireless platforms for mesh-heavy industrial and smart city use cases.
Comminent is also positioning its experience for smart grid markets beyond India, including the United States, Japan and emerging energy-transition regions. The announcement does not provide details on deployments in those markets, but the exportable part of the story is clear: module vendors that can combine standards compliance, embedded security and volume manufacturing are becoming increasingly important to smart grid programs that cannot afford single-vendor communications silos.
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