Nagoya Smart Water Meter Trial
Nagoya City Waterworks & Sewerage Bureau has been piloting smart water meters since a March 2020 agreement with Chubu Electric Power: an initial trial reached 124 apartment units by May 2021, using the utility's electricity smart-meter communication network for automatic reading instead of manual checks. A parallel 2022 agreement with Aichi Tokei Denki tested cellular LPWA communication for the same purpose. In June 2026 the bureau opened a new recruitment round for roughly 100 single-family homes to pilot integrated smart meters, ahead of a planned fiscal-2026 smartphone service for hourly and daily consumption data. There is no citywide rollout date yet.
🎓 Lesson
Six years into smart-water-meter trials, Nagoya still has no citywide rollout date — a reminder that utility metering pilots can stay pilots indefinitely without a mandate to scale.
📖 Terms in this entry: Non-revenue water (NRW) · Adaptive traffic signals · Digital twin
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This overview was generated with AI from the public sources listed above and checked against them before publication. It has not had a complete human fact-check — treat it as a starting point and follow the sources.
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📎 Cite this project
1001 Smart Cities (2026). “Nagoya Smart Water Meter Trial” — Nagoya, Japan. The Smart City Atlas. https://1001smartcities.org/projects/nagoya-smart-water-meters/ (last verified 2026-08-02). Data: CC BY 4.0.
The underlying data is free to reuse with attribution — see the open data page.