Reference
·Primary source
Thailand Non-Revenue Water (NRW) Rate
~20–30% (utility average)
Non-revenue water — the gap between water produced and water billed — runs at approximately 20–30% across Thai public utilities, representing a significant economic and resource loss. MWA has reduced its NRW to roughly 20–23% through a pipe-replacement programme covering aging cast-iron mains in inner Bangkok. PWA's provincial systems — many with older infrastructure — tend toward the higher end of the range. Reducing NRW to below 20% is a stated target in Thailand's 20-Year National Water Plan. Private operators including Berli Jucker Water and TTW typically report lower NRW on newly built concession systems, given modern pipe specifications.
Figure in context
Non-revenue water — the gap between water produced and water billed — runs at approximately 20–30% across Thai public utilities, representing a significant economic and resource loss. MWA has reduced its NRW to roughly 20–23% through a pipe-replacement programme covering aging cast-iron mains in inner Bangkok. PWA's provincial systems — many with older infrastructure — tend toward the higher end of the range. Reducing NRW to below 20% is a stated target in Thailand's 20-Year National Water Plan. Private operators including Berli Jucker Water and TTW typically report lower NRW on newly built concession systems, given modern pipe specifications.
Non-revenue water — the gap between water produced and water billed — runs at approximately 20–30% across Thai public utilities, representing a significant economic and resource loss. MWA has reduced its NRW to roughly 20–23% through a pipe-replacement programme covering aging cast-iron mains in inner Bangkok. PWA's provincial systems — many with older infrastructure — tend toward the higher end of the range. Reducing NRW to below 20% is a stated target in Thailand's 20-Year National Water Plan. Private operators including Berli Jucker Water and TTW typically report lower NRW on newly built concession systems, given modern pipe specifications.
Time scope
2022–2024
Source basis
Primary source
Interpretation notes
What this tells you
Non-revenue water — the gap between water produced and water billed — runs at approximately 20–30% across Thai public utilities, representing a significant economic and resource loss. MWA has reduced its NRW to roughly 20–23% through a pipe-replacement programme covering aging cast-iron mains in inner Bangkok. PWA's provincial systems — many with older infrastructure — tend toward the higher end of the range. Reducing NRW to below 20% is a stated target in Thailand's 20-Year National Water Plan. Private operators including Berli Jucker Water and TTW typically report lower NRW on newly built concession systems, given modern pipe specifications.
What not to do with it
Use the linked report for interpretation and keep basis differences explicit.
Related figures
Adjacent numbers that add context without drowning the value.
Metropolitan Waterworks Authority (MWA) Service Connections
MWA Annual Report, Ministry of Interior
Provincial Waterworks Authority (PWA) Service Coverage
PWA Annual Report, ONWR Thailand
Eastern Water Resources Development (EASTW) Annual Revenue
EASTW Annual Report, SET filings
EEC Industrial Water Demand Forecast (2030)
EEC Office, ONWR, EASTW investor presentations
Thailand water utilities sector revenue (2020-2024)
Metropolitan Waterworks Authority, Provincial Waterworks Authority, TTW SET filings, Eastern Water Resources Development and Management, WHA Utilities and Power
TTW and Eastern Water (EASTW) revenue (2020-2024)
TTW SET annual reports, Eastern Water Resources Development and Management, CH. Karnchang infrastructure investment disclosures, TTW Listed Company Snapshot YE2024
Report context
Atlas actors in this figure's reports
Profiles covered in the report that cite this number.