Utilities – Calculation of Electricity Charges


TEPCO Use Case


Tokyo Electric Power Company Holdings, Incorporated, also known as Toden or TEPCO, is a Japanese electric utility holding company servicing Japan’s Kantō region, Yamanashi Prefecture, and the eastern portion of Shizuoka Prefecture.

Headquarters: Chiyoda City, Tokyo, Japan
Revenue: 6.802 trillion JPY (2015)

Use case: Calculation of electricity charges from usage readings.


Electricity usage readings from 30 million clients come in every 30 minutes. The old Java-based processing took 40 minutes to complete.


Leverage Unicage to power faster data processing using less code.


  • Reduced processing time from >40 minutes (Java) to 40 seconds (Unicage).
  • Faster development – 67x less code. From 20,000 lines of code (Java) to 300 lines of code (Unicage)

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