The verdict in three sentences
For a New York-based developer operating solar mini-grids in West Africa, profitability comes down to three metrics: collection rate, non-technical losses (theft, bypassed meters) and per-site uptime. Custom billing and metering software costs USD 40,000 to 90,000 in 2026 and ships in 4 to 6 months, integrating prepaid smart meters and Orange Money and MTN MoMo top-ups. The typical range observed is 10 to 15% fewer non-technical losses, often enough to pay back the project in 18 to 24 months.
What the platform must do
With 12 mini-grids and 7,500 customers spread across rural Guinea, the head office in New York and the field team in Conakry handle thousands of top-ups a day, differentiated tariffs (households, shops, mills, telecom towers) and dispersed field crews. Investors also expect clean, auditable data.
| Module | Function | Indicative budget 2026 (USD) |
|---|---|---|
| Smart meter integration | Manufacturer APIs (STS, communicating meters), consumption reads | 8,000 to 18,000 |
| Mobile money prepaid top-ups | Orange Money, MTN MoMo, STS token generation, SMS receipts | 7,000 to 15,000 |
| Billing and tariffs | Tariffs by category, fixed fees, postpaid large users | 5,000 to 11,000 |
| Fraud detection | Production vs consumption gaps per site, inactive meters, alerts | 5,000 to 12,000 |
| Outages and work orders | Tickets, technicians, offline field app | 5,000 to 12,000 |
| Per-mini-grid dashboards | Revenue, kWh sold, ARPU, uptime, profitability per site | 6,000 to 14,000 |
| Funder and regulator reports | Exports for results-based financing and the regulator | 4,000 to 8,000 |
The total sits between USD 40,000 and 90,000, depending on the number of meter brands and the depth of analytics.
Market platform or custom software
| Option | Initial cost (USD) | Recurring cost | Timeline | Main limitation |
|---|---|---|---|---|
| Mini-grid management SaaS | 5,000 to 15,000 deployment | USD 0.50 to 1.50 per customer per month | 1 to 3 months | Meter compatibility, data hosted abroad |
| Meter manufacturer software | Often included | Per-meter licences | 1 month | Single brand, little analytics |
| Custom build by Kolonell | 40,000 to 90,000 | USD 6,000 to 12,000 a year | 4 to 6 months | Precise technical scoping |
| Spreadsheets and manual top-ups | Near zero | Losses of 20 to 30% | Immediate | Theft goes unseen |
| Hybrid: SaaS + custom analytics | 20,000 to 45,000 | Subscription + maintenance | 3 to 4 months | Two vendors |
At 7,500 customers, a SaaS at USD 1 per customer costs about USD 90,000 a year. Custom becomes cheaper from year two and lets you mix several meter brands, common after successive funding rounds.
Project plan
| Phase | Duration | Deliverable |
|---|---|---|
| Meter and top-up flow audit | 3 weeks | Technical map |
| Meter and mobile money integration | 5 to 7 weeks | Automatic top-ups |
| Billing, tariffs, fraud | 4 to 6 weeks | Billing engine |
| Field app and dashboards | 4 to 5 weeks | Per-site management |
| Pilot on 2 mini-grids then roll-out | 3 to 4 weeks | 12 sites connected |
Mini case study
Daniel, CEO of a mini-grid developer headquartered in New York, sells 1,400,000 kWh a year at an average USD 0.30 per kWh, or USD 420,000 of potential revenue. Non-technical losses reach 22%, about USD 92,400 a year. Bringing them down to 10% through gap detection and blocking bypassed meters recovers USD 50,400 a year. Add 2 manual top-up agents reassigned (about USD 7,000 a year). For a USD 70,000 project plus USD 9,000 annual maintenance, payback arrives in about 17 months.
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FAQ
How much does mini-grid management software cost in 2026?
Expect USD 40,000 to 90,000 for a custom build, plus USD 6,000 to 12,000 a year for maintenance and hosting. SaaS charges USD 0.50 to 1.50 per customer per month.
Are Orange Money and MTN MoMo top-ups automatic?
Yes, the customer pays from their phone and receives an STS token by SMS within seconds. The software reconciles every transaction, with under 0.5% of gaps to handle manually.
Does it work with several meter brands?
Yes, that is the main benefit of custom: each brand gets its own connector. Adding a new brand costs USD 3,000 to 6,000.
What happens when a site loses connectivity?
Prepaid meters keep running on their credit and the field app stores data offline. Sync resumes as soon as 2G or 3G coverage returns.
Can we produce the reports funders require?
Yes, exports cover connections, kWh sold and uptime per site in the format expected by results-based financing programmes. A quarterly report is generated in under 5 minutes.
Let's scope your project. Tell us your number of sites, customers and meter brands for an estimate and a 4 to 6 month 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.
