The verdict in three sentences
For a water utility or distribution operator with 45,000 customers, such as in Conakry, a full billing system costs between USD 500,000 and 1,200,000 in 2026, depending on how many prepaid meters are in scope. The fastest lever is not the meter but the reading, billing, collection chain: smartphone reading, clear bills and mobile money payment lift the collection rate from about 65% to 85%. On USD 8 million of billed revenue, each collection point gained is worth roughly USD 80,000 a year.
Where the 35% non-revenue water comes from
Non-revenue water mixes physical losses (leaks on an ageing network) and commercial losses. Software acts mostly on the latter, which often account for half of the problem and can be fixed in months rather than years.
| Loss source | Estimated share of non-revenue water | Software lever | Expected gain at 18 months |
|---|---|---|---|
| Estimated or missed readings | 8 to 12% of volume | Smartphone reading with meter photo and GPS | 60 to 80% fewer estimates |
| Illegal connections | 5 to 8% | Customer cross-checks, GIS mapping, zero-consumption alerts | 1,500 to 3,000 connections regularised |
| Stuck or under-registering meters | 4 to 6% | Detection of abnormal consumption over 6 months | Targeted meter replacement |
| Data entry and tariff errors | 1 to 3% | Automatic checks before printing | Near elimination |
| Physical network leaks | 12 to 18% | District metering and water balances (outside billing scope) | Separate network project |
Modules and their 2026 cost
The budget depends on choosing an adapted international package or a custom build, and above all on the share of prepaid meters. The amounts below are orders of magnitude for 45,000 customers.
| Module | Content | Indicative 2026 cost (USD) |
|---|---|---|
| Customer base and GIS | Data migration, connection geotagging, duplicate cleanup | 60,000 to 120,000 |
| Mobile reading | Offline Android app, routes, photo and consistency checks, 60 tablets or phones | 70,000 to 140,000 |
| Billing engine | Block tariffs, social customers, standpipes, large consumers | 120,000 to 250,000 |
| Mobile money collection | Orange Money, MTN MoMo, banks, automatic reconciliation | 40,000 to 90,000 |
| Prepaid meters | Token vending platform, 3,000 to 8,000 meters for large and government customers | 150,000 to 450,000 |
| Collection and disconnection | SMS reminders, disconnection orders, payment plans | 30,000 to 70,000 |
| Training, hosting, year-1 maintenance | 150 staff trained, secure hosting, support | 30,000 to 80,000 |
The low end, around USD 500,000, covers the reading, billing, collection chain with a limited prepaid pilot. The high end, near USD 1,200,000, includes a broad prepaid rollout to government and industrial customers, often the worst payers.
Before and after: the indicators to track
A lender or a board will judge the project on a few simple indicators, measured from day one.
| Indicator | Baseline | 18-month target (2026 estimate) |
|---|---|---|
| Collection rate | 65% | 85% |
| Bills based on actual reading | 55% | 90% |
| Reading to bill delay | 25 days | 5 days |
| Payments via mobile money | 10% | 45% |
| Billing complaints | 7% of bills | 2% |
| Non-revenue water | 35% | 27% |
Mini case study
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Mamadou, commercial director of a water operator in Conakry, manages 45,000 customers with an average bill of USD 15 a month (about GNF 130,000). Billed revenue reaches 45,000 x 15 x 12 = USD 8,100,000 a year, of which 65% is collected. Moving to 85% collection brings in USD 1,620,000 more per year. If cutting commercial losses adds 3 points of billed volume, that is roughly USD 370,000 more. For a USD 800,000 project, payback falls between 6 and 9 months after full go-live, once mobile payment adoption has ramped up.
FAQ
Should every customer get a prepaid meter?
No. Prepaid costs USD 80 to 150 per installed meter and is first justified for the 5 to 15% of customers who weigh most in arrears: government bodies, industry, large buildings. Households stay postpaid with mobile reading.
Does smartphone reading work in areas without signal?
Yes, the app stores readings offline and syncs at the end of the route. A reader handles 120 to 180 meters a day versus 80 to 100 with a paper book.
How do we integrate Orange Money and MTN MoMo?
Through the operators' merchant APIs, with automatic reconciliation by customer number. Allow 6 to 10 weeks per operator, with negotiated transaction fees between 0.5 and 1.5%.
How long does rollout take?
A pilot on a 5,000-customer district launches in 4 to 5 months. Scaling to 45,000 customers takes 12 to 18 months depending on the state of the customer base.
Do lenders fund this kind of project?
Utility commercial performance programmes are regularly funded by development lenders. The application must present baseline indicators and a quantified target, like the table above.
Let's scope your project. Send us your customer count, current collection rate and existing payment channels: we will price the scope in phases, the indicative budget and the pilot plan. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
