📡 Data & IoT

Citywide Smart Water Meter Rollout

Since 2019, Tianjin Water Group has been replacing residential analogue meters with remote-read NB-IoT smart meters that report consumption automatically and enable app-based (Alipay/WeChat) bill payment. By an October 2022 municipal water-conservation conference, more than 3 million meters had been replaced and over 600 km of aged (50-plus-year) supply pipe renovated, and Tianjin's Municipal Water Authority reported the city's public water-supply network leakage rate had fallen to 9.4%. The replacement programme, run through Tianjin Water Group's district service centres, was still actively processing resident applications as of April 2025.

Live 📅 since 2019

🤖 AI-generated summary of the sources below — how this works · 🔎 Last verified 2026-08-02

📡 Data & IoT Water Sensors & IoT

📊 Impact

Tianjin's public water-supply network leakage rate had fallen to 9.4% as of an October 2022 municipal conference, after Tianjin Water Group replaced more than 3 million meters and renovated over 600 km of aged pipe since 2019. Self-reported by the Tianjin Municipal Water Authority; no independent audit was found.

Evidence🏛️ Official

Scale🏙️ City-wide

📖 Terms in this entry: Non-revenue water (NRW) · Adaptive traffic signals · Digital twin

Sources

↗ Water-conserving.cn: Tianjin water-conservation work conference coverage (24 Oct 2022)States the leakage rate fell to 9.4%, over 3 million smart meters were replaced, and names the Tianjin Municipal Water Authority (under a mayor-chaired, 16-department leadership group) as responsible.

↗ Tianjin Bendibao: how to apply for a smart water meter (2025)Confirms the programme, operated by Tianjin Water Group Co., Ltd., was still actively processing resident meter-replacement applications as of April 2025 — currency check.

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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Compare this project

🇨🇳 AI Mobile Air-Quality Grid & Eco-Smart Guard Platform · Hangzhou Like Tianjin's leakage-rate figure, Hangzhou's AI accuracy claims come only from the reporting bureau — neither has an independent audit. 🇰🇷 Incheon Smart Remote Water Metering & Leak Detection · Incheon Incheon's IoT meter rollout covers just 37% of connections after years of piloting; Tianjin's had passed 3 million meters by 2022. 🇰🇷 Busan Remote Water Metering · Busan Both are city-scale smart-meter rollouts on their own networks — Busan's uses a municipal LoRa network, Tianjin's uses NB-IoT. 🇯🇵 Nagoya Smart Water Meter Trial · Nagoya Contrast in speed: Tianjin passed 3 million NB-IoT meters with app-based billing by 2022, years ahead of Nagoya's single-building trials.

Explore the wider context

📟 A Reading Is Not a Decision 💧 Water guide 🏙️ Tianjin city profile 📡 Data & IoT projects

📎 Cite this project

1001 Smart Cities (2026). “Citywide Smart Water Meter Rollout” — Tianjin, China. The Smart City Atlas. https://1001smartcities.org/projects/tianjin-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.

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