Nigeria’s mini-grid story is changing fast, and the numbers prove it.
Nigeria’s decentralised renewable energy drive has already connected nearly six million people to electricity. Yet about 86.8 million Nigerians still lack access to electricity, the highest number of electricity-poor people in the world.
This is the moment Nigerians must stop arguing about whether mini grids work. They do. The harder question is whether they can scale without collapsing under their own economics.
Because the real enemy of mini grids is not sunshine, batteries, or cables. It is the viability gap.
WHAT IS THE VIABILITY GAP?
A solar/hybrid mini grid is capital-heavy. You must pay upfront for generation, batteries, distribution lines, meters, installers, and maintenance planning.
But rural demand is often low at the start, especially where incomes are thin, productive businesses are few, and Nigerians have been trained by decades of unreliable supply to distrust new electricity promises.
So, the operator faces a brutal equation: if they charge the true cost of reliable power, many customers won’t connect or won’t pay consistently. If they charge what customers can afford immediately, the operator may never recover costs, and investors walk away. That is the viability gap.
NIGERIA IS ALREADY TRYING TO CLOSE IT, T SO WHAT IS MISSING?
The government and partners are not asleep. The World Bank has approved the Distributed Access through Renewable Energy Scale-up (DARES) programme, financed by an International Development Association credit of $750 million, and it is expected to serve over 17.5 million people through standalone solar and mini-grids. The programme is also expected to replace more than 280,000 petrol and diesel generators.
Nigeria has also used results-based support to reduce the upfront burden. A Nigeria Electrification Project mini-grid programme document describes performance-based grants of US$350 per connection for eligible mini-grid projects.
So, yes, capital support exists.
But there is still a missing ingredient that determines whether mini grids become a trusted public service or just another power disappointment story waiting to happen: a standard, enforceable customer promise.
MY PROPOSAL: A “POWER WARRANTY”
Mini grids already use prepaid meters, which prevent customers from paying for electricity they did not consume. But prepaid metering does not solve the most damaging problem in electricity markets: unreliable service, brownouts, unstable supply, repeated outages, and vague promises that cannot be enforced.
Nigeria already runs mini-grids through contracts and regulated processes: the mini-grid framework recognises structured tariff setting and provides complaint/dispute and rectification procedures.
So, the upgrade is simple:
Build a standard Power Warranty clause into mini-grid customer contracts: if an operator sells a service tier, and they fail to deliver for reasons within their control, the customer receives automatic credits, extra units, or a rebate without waiting months for dispute resolution.
This is not anti-investor. In fact, it is pro-investor because it can reduce non-payment, stabilise revenue, and demonstrate performance routinely, which is exactly what lowers financing costs over time.
HOW TO DO THIS WITHOUT KILLING INVESTMENT
Nigeria should implement a Power Warranty in a way that protects both customers and investors.
One step is to standardise service tiers. A mini grid should not sell reliable power as a slogan. It should offer clearly defined service tiers in the contract, a minimum daily availability, response time to faults and basic service quality expectations, with pricing that reflects the level of service promised.
Another important safeguard is to ensure that compensation credits are automatic but capped. Credits should apply only when performance falls below the contracted tier, only for operator-controlled failures, and only up to a defined limit so that a short period of disruption does not financially destabilise the provider. Nigeria already has formal complaint and dispute mechanisms; the warranty would simply.
provide a faster layer of customer protection.
Finally, public support programmes should align incentives with reliability. Where government-backed programmes support mini-grid expansion, a small portion of that support can reward proven reliability rather than only the number of new connections. This approach is consistent with the performance-based mechanisms already used in the sector.
WHAT SHOULD NIGERIA DO NEXT?
Nigeria can begin by introducing a national Power Warranty standard that clearly defines service levels and automatic compensation when operators fail to meet them.
Next, mini grids should be designed around productive demand, not just basic household electricity. Agro-processing, cold storage, workshops, and other small businesses must be integrated into planning, so electricity demand grows alongside supply.
Finally, public support programmes should reward reliability as well as connections, ensuring that performance, not just expansion,n drives sector growth.
THE STAKES ARE BIGGER THAN ELECTRICITY
Nigeria’s electricity crisis has lasted too long for incremental solutions. Mini grids are one of the few tools capable of delivering power quickly to communities far from the national grid. But speed without trust is not progress.
It is future backlash.
If Nigeria closes the viability gap with smart financing and credible service guarantees, mini grids will do more than add megawatts. They will add something Nigeria’s power sector desperately needs: Confidence.
Confidence to connect.
Confidence to pay. Confidence to invest.
“Dr Anita Ene Okute is an energy systems consultant whose work sits at the intersection of energy economics, electricity market design and sustainable power systems. Her research focuses broadly on energy access, mini-grid development, and the economic and technical pathways for accelerating sustainable energy transitions.
She holds a BSc in Economics and Development Studies from Igbinedion University, Nigeria, an MSc in Energy Economics from the University of Dundee, UK, and a PhD in Sustainable Energy Engineering from Robert Gordon University, Aberdeen, UK.
Email: anitaokute@yahoo.com
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