Nagoya – November 04, 2026 -- Chubu Electric Power Grid Co., Inc. has deployed 10 million smart meters under its Advanced Metering Infrastructure (AMI) program with Oracle, following an upgrade to the latest version of Oracle Utilities Meter Data Management (MDM).
The upgrade adds scalability, interval-readiness and operational resilience across the utility's commercial and residential meters. It also prepares the grid operator for initiatives tied to distributed energy resources and electrification.
Upgraded MDM platform handles second-generation meters and 15-minute reads
The utility had to modernize its always-on environment without interrupting operations while meeting new interval-readiness requirements. The MDM system now accommodates second-generation smart meters, enables 15-minute interval reads and handles complex delivery requirements. Chubu Electric Power Grid uses the meter data to visualize energy usage, aiming to improve grid efficiency and customer service.
Yu Hashikura, Manager of the Advanced Grid Group in the Distribution Department, said the upgrade gives the utility a strong foundation for a more distributed electricity future, including EVs and solar.
Retailers in the Chubu region gain tools for billing and demand management
Electricity retailers can use the meter data to warn customers in advance when consumption may exceed target levels and to monitor solar power generation. Smart AMI services also support more precise billing calculations and more flexible pricing programs, such as time-of-use (TOU) rates. These are intended to help customers use electricity efficiently and reduce demand during peak periods. New services for the effective use of surplus electricity are anticipated.
Oracle and Hitachi delivered the project after a structured design, build and test cycle
Oracle partnered with Hitachi, Ltd. and others on the upgrade. The project covered design and build, development, testing and validation, and performance testing tailored to the utility's operational needs.
Chubu Electric Power Grid serves the Chubu region, including Aichi, Mie, Gifu, Nagano and Shizuoka. Oracle has supported its AMI initiatives since the launch of the utility's smart meter control management system in 2013.