Landis+Gyr Fan 1.1 targets Tepco in Japan
- September 22, 2025
- Steve Rogerson

Swiss firm Landis+Gyr has added Wi-Sun certification for the Fan 1.1 specification to its advanced metering network equipment for use at Tepco in Japan and in its Revelo platform.
The certification is for its second-generation Series 6 network routers, data collectors and the latest endpoint radio, meaning its RF mesh network and metering products are now certified to the Fan 1.1 specification.
“Landis+Gyr is realising the benefits of open standards in a number of high-profile grid technology deployments, where customers are looking for greater choice in components and infrastructure,” said Chris Calvert, vice president at Landis+Gyr. “In addition to deployment flexibility, Wi-Sun certification brings with it validation of our network data capacity and security features, increasing buyer confidence and satisfaction.”
Wi-Sun’s Fan (field area network) certification programme provides compliance testing of network components and devices to a communications profile developed from applicable open standards and certifies the product’s ability to interoperate with other certified devices. All Wi-Sun certified products are tested by a third-party test lab to ensure the devices work together effortlessly and securely. Certified devices include a digital certificate to authenticate entry to a Wi-Sun Fan, which significantly reduces vulnerability to cyber-security threats.
As a promoter and active member of the Wi-Sun Alliance (wi-sun.org), Landis+Gyr guides standards development to promote interoperability of AMI network hardware. The Fan 1.1 (wi-sun.org/blog/introducing-wi-sun-fan-1-1-empowering-sustainable-secure-and-interoperable-iot-networks) specification, which introduces support for higher and dynamic data rates and expands geographic coverage capabilities, further enhances RF mesh network scalability and security.
Tepco (www.tepco.co.jp) is the Tokyo Electric Power Company. Revelo (www.landisgyr.com/solution/revelo) is Landis+Gyr’s IoT grid sensing platform.
With sales of $1.7bn in 2024, Landis+Gyr (www.landisgyr.com) employs around 6300 people across five continents.


