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Aerial view of Tokyo cityscape with Fuji mountain in Japan.
CASE STUDY

Beyond AMI:

Transitioning to Next Generation IoT Infrastructure at TEPCO Power Grid

TEPCO Power Grid (TEPCO PG) partnered with Landis+Gyr in 2013 to modernize its grid and deploy Advanced Metering Infrastructure (AMI). Over the years, this collaboration has connected and managed nearly 30 million endpoints. In 2022, Landis+Gyr supported TEPCO PG’s Joint Meter Reading (JMR) initiative, later branded as “Route IoT”, aimed at evolving AMI into a comprehensive IoT infrastructure. 

Key Challenges Addressed

  • Integrating new functionality into an existing large-scale AMI with minimal service disruption
  • Upgrading aging IT infrastructure while mitigating security risks
  • Achieving multi-commodity readiness without field visits or meter replacements

Project At-A-Glance

  • 30M+
    Smart Meters Deployed Over 7 Years
  • 1.4+B
    Records Collected Daily
  • 99.95%
    Success for Meter Reads Over 48 Hours

Investment Protection and Future Readiness

By leveraging standards-based technologies such as Wi-SUN and cellular, TEPCO PG can:

  • Repurpose over 10 million in-meter communication modules for new IoT use cases
  • Perform remote firmware updates without replacing meters
  • Support incremental system upgrades while maintaining SLAs
  • Ensure long-term interoperability and enhanced security

The result is a flexible, DERMS-ready platform that protects existing investments while enabling continuous innovation.

Smart city and communication network concept. 5G. IoT (Internet of Things). Telecommunication.

Read the Full TEPCO PG Success Story

Learn how they scaled to 30 million endpoints, integrated IoT devices, and overcame major challenges to build a future-ready smart grid.

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