1001 Smart Cities
The world's most delightful atlas of smart-city projects — honest, curated, working toward 1001. 🌍
← All projects
📡 Data & IoT

Water ATMs: Prepaid Dispensers in Nairobi's Informal Settlements

Nairobi City Water and Sewerage Company, the county-owned utility, put prepaid water dispensers — locally called water ATMs — into informal settlements from 2015. A resident loads a smart card or token at a kiosk or by mobile money, taps the machine and draws metered water straight from the utility network, bypassing the vendors and cartels who resell piped water at a markup. The first four went into Mathare Mashimoni with Grundfos Lifelink, a Danish manufacturer; the utility said in 2018 it intended to roll out 12,000. A separate donor-funded strand installed 16 token dispensers in Korogocho and Kahawa Soweto from November 2015. The machines are run under contract by community youth and women's self-help groups, not by utility staff. What the mechanism did not solve was supply. Peer-reviewed fieldwork in Mathare found the dispensers few and clustered along the main road while homes sat in the valleys below, and their tanks frequently empty: cartels cut the pipes to manufacture shortages and siphoned the dispensers' own tanks, and utility staff conceded in interviews that the machines ran dry. Residents kept buying from vendors, because the cheapest water in the settlement was also the least dependable.

Live 📅 since 2015 ✔ Editor-reviewed

✔ Reviewed by the 1001 Smart Cities editorial desk · 🔎 Last verified

📊 Impact

At launch the dispensers sold water at about KSh 0.50 per 20-litre jerrycan, under US$0.01 (NCWSC, quoted in The Source, 2018). Peer-reviewed fieldwork in Mathare found informal vendors charging "from Ksh2 (US$0.02) to Ksh50 (US$0.50) per 20 litres depending on where the clients lived" (Water International 45(5), 2020) — on those two figures a gap of roughly four to a hundred times, where a dispenser was working. Against that, delivery: four dispensers in the Mathare pilot against a stated intention of 12,000, plus 16 token dispensers in Korogocho and Kahawa Soweto from November 2015. A June 2026 expert commentary in The Star puts the present total at 257 across Mukuru kwa Reuben, Mathare, Kiambiu and Githogoro at a regulated social tariff of KSh 2 per 20 litres; that article returned 403 to every attempt and the utility publishes no count of its own. Every litre passing a dispenser is metered and billed, but no consumption or revenue figures are published, and the utility's own public FAQ does not mention the programme at all.

🎓 Lesson

A prepaid meter can fix the price of water without fixing the supply of it. The dispensers charged what they promised and then stood empty, because the cartels they were built to displace controlled the pipes feeding them.

Evidence🔬 Peer-reviewed
Scale🏘️ District
FundingNCWSC with Grundfos Lifelink (Denmark); the separate token-dispenser strand funded by OFID, UK DFID and Water for the World

Sources

↗ Grundfos — Public and private partners shape Nairobi's water future (24 Jun 2015)Partner source, fetched successfully. Confirms the NCWSC–Grundfos Lifelink partnership and AQtap dispensers at four sites in Nairobi informal settlements. Names no donor and gives no prices. Its '4,000 water kiosks, which could be equipped with the AQtap' is potential, not deployment.
↗ The Source (IWA) — NCWSC bets big on technology to serve Nairobi's urban poor (29 Aug 2018)Fetched successfully; the load-bearing operator-sourced document. Verbatim: 'The Company has installed 4 ATMs in Mathare Mashimoni under the pilot programme and intends to roll out 12,000 dispensers'; price 'less than $0.01 per 20 litre Jerri can'; machines 'operated by local youth and women groups'. Separately records '16 Token Water dispensers since November 2015' in Korogocho and Kahawa Soweto funded by OFID, DFID and Water for the World — kept distinct here, not merged into the AQtap count.
↗ Sarkar, A. — How 'smart' are we with smart technology: comparison of water ATMs in Nairobi and Delhi, Water Practice & Technology 17(10):2160 (2022)Peer-reviewed. Publisher page returned 403; article record verified through search and its DOAJ listing. Supports the 2015 Mathare PPP origin, management by community self-help groups under NCWSC contract, cartel pipe-cutting and theft from dispenser tanks, and the finding that utility staff accepted in interview that the dispensers remain dry through illegal siphoning.
↗ Smart technology to serve urban poor: a case study of water ATMs in a Nairobi slum, Water Utility Journal 22:1-12 (2019)Peer-reviewed. PDF fetched but returned unreadable binary; abstract verified through search. Supports the 2015 first introduction in Mathare, 'meagre presence with a few kiosks located in some favourable sites', unpopular management, opposition from cartels, and dispensers 'mostly underutilised due to insufficient water'.
↗ Sarkar, A. — Kenya's urban poor are being exploited by informal water markets, The Conversation (30 Aug 2020)Fetched successfully; companion to the peer-reviewed Water International paper below. Source of the vendor price range in Mathare and of 'tanks were also often empty, making them an unpredictable and unreliable supply source'. Caution: the same piece gives the ATM price as 'about US$0.50 for 20 litres', which contradicts both its own claim that ATMs are cheapest and the utility's KSh 0.50 — treated as an error and not used.
↗ Sarkar, A. — Informal water vendors and the urban poor: evidence from a Nairobi slum, Water International 45(5):443-457 (2020)Peer-reviewed source behind the price figures. Paywalled — abstract only. Confirms the central behavioural finding that residents kept buying from private vendors despite higher prices, because vendors offered supply and payment flexibility the formal options did not.
↗ The Star — expert commentary, Solution to Kenya's water crisis lies beyond supply (28 Jun 2026)The only located source for the current figure of 257 dispensers and the KSh 2 per 20-litre social tariff. Returned 403 on every attempt; the sentence is reproduced consistently across search indexes but is not independently corroborated, the author's affiliation could not be confirmed, and it is signed commentary rather than reporting. Attributed in the entry, not asserted.
↗ Nairobi City Water and Sewerage Company — FAQsFetched successfully and cited for a negative finding: the utility's public FAQ covers connections, billing, meter readings and supply schedules, and says nothing about prepaid dispensers, tokens or water ATMs. The utility's own AQtap project page is indexed under two URL forms and returned 404 on both.
📎 Cite this project

1001 Smart Cities (2026). “Water ATMs: Prepaid Dispensers in Nairobi's Informal Settlements” — Nairobi, Kenya. The Smart City Atlas. https://1001smartcities.org/projects/nairobi-water-atms/ (last verified 2026-07-26). Data: CC BY 4.0.

The underlying data is free to reuse with attribution — see the open data page.

✉️ Get the next verified smart-city project in your inbox

One short email a week: the Landmark, one Insight, the new cities. No spam, one-click unsubscribe. About the newsletter · RSS