Why the Lights Are Off: The Real Cost of Power in Nigeria

There's a quiet lie built into how most Nigerians talk about electricity: that the problem is supply. That if the grid just worked a little better, if a few more gas turbines came back online, the lights would stay on. The truth is worse than that. Even where supply exists, a growing number of Nigerian households simply cannot afford to use it — or the generator that fills its gaps — for more than a few hours a day. Darkness, for millions of people, isn't a technical failure anymore. It's a budget decision, made every single evening.

This article lays out, with sources, exactly why — and what it actually costs to keep the lights on in Nigeria today.

What "Band A" actually promises — and what it doesn't deliver

In 2020, Nigeria's regulator introduced a system meant to tie what people pay to what they get: the Service-Based Tariff. Under it, customers are sorted into five bands, each with a promised minimum number of supply hours per day:

On paper, that's a reasonable structure. In practice, even the customers paying the most for the most hours can't rely on it. In 2026 alone, Nigeria's regulator had to issue special compensation to Band A customers after entire feeders fell to under 18 hours of daily supply for weeks at a stretch — not because of one bad month, but because of structural gas-supply failures and infrastructure damage the regulator itself admitted were beyond anyone's control to fix quickly.

And Band A represents a small, privileged fraction of the country. Nationally, the picture is starker: independent estimates put Nigeria's actual average daily power supply at around four hours, with entire days regularly passing without any grid power at all in large parts of the country. One detailed study of feeders in a major southwestern city found residents without power for roughly 40% of the year — the equivalent of 160 full days in darkness, and getting worse year over year, not better.

So when we say "5 hours of power a day," we're not describing an unlucky outlier. We're describing something close to the median Nigerian experience.

The generator tax nobody voted for

When the grid fails, the generator takes over — and it isn't cheap. A standard small petrol generator burns somewhere between 0.8 and 1 litre of fuel per hour of use. At today's pump prices — averaging somewhere between ₦1,100 and ₦1,200 a litre depending on region — even modest, realistic usage adds up fast.

Consider a household that isn't running a generator all day, but simply enough to cover the essentials in the evening — lights, fans, a fridge, charging phones — for around 3.5 hours a day. At current fuel prices, that comes to:

• ≈ ₦120,000 per month
• ≈ ₦1,440,000 per year

That's not the extreme scenario. Heavier users — households compensating for 8 to 12 hours of daily grid gap, which is common in many areas — are documented spending closer to ₦360,000–480,000 a month, or well over ₦4 million a year, once you include routine servicing, oil changes, and part replacements that generators demand every few months.

Independent per-kWh analysis backs this up from a different angle entirely: petrol-generated electricity in Nigeria works out to roughly ₦421 per kilowatt-hour, and diesel-generated power to roughly ₦607 per kilowatt-hour — compared to Band A's ₦209.50/kWh grid rate. In other words, a Nigerian household running a generator is typically paying two to three times the country's highest official grid rate, for power that is by definition unreliable and temporary.

The income reality that makes this unbearable

Here's the part that should reframe the entire conversation: this level of spending isn't a minor inconvenience for a comfortable household. For most Nigerians, it's a direct competitor with rent, school fees, and food.

Independent income surveys consistently show that only a small minority of Nigerians earn enough to absorb these costs painlessly. One market analysis found that only around 10% of Nigerians earn above ₦100,000 a month, and a mere 2.4% earn above ₦200,000. A separate 2025 consumer outlook survey put the number even more starkly: only about 5% of Nigerian earners bring home ₦500,000 or more a month, and less than half a percent clear ₦1 million.

Put plainly: earning above ₦250,000 a month already places a household in a thin slice near the top of Nigeria's income distribution — not the comfortable middle it might feel like. For that same household to then spend ₦120,000, or even ₦1,440,000 a year, just to keep the lights on for a few hours a day, isn't a lifestyle expense. It's a structural drain that competes directly with everything else that money could be doing.

You are already paying for the system you don't own

This is the point that should reframe how solar gets pitched in Nigeria. The conversation isn't "can you afford solar?" It's "you are already paying for an equivalent — or worse — amount, every single month, and getting nothing permanent for it."

A household spending ₦120,000 a month on generator fuel has spent ₦1,440,000 in a year. That is money spent on a system that:

• Depreciates the moment it's bought
• Requires constant, rising fuel input with no ceiling in sight
• Breaks down and needs parts, oil, and servicing every few months
• Delivers power for a few hours a day, at best

Compare that to the same money directed toward a solar system: every naira builds toward something the household will still own in five, ten, twenty years — with a fuel cost of zero, once installed.

What this means for a minimum solar setup

This is why a modest system — even a starter setup of just a handful of solar panels — isn't a luxury upgrade. It's the smallest intervention that meaningfully interrupts a Nigerian household's single largest recurring, non-negotiable expense. Financed properly, a solar system's monthly repayment can land in the same range as — or below — what a household is already losing to fuel, except this time, the payments are building an asset instead of burning away in an exhaust pipe.

That's the case for solar in Nigeria today. Not "it would be nice to go green." But: you are already spending the money. The only question is whether you get to keep anything for it.

How SwiphtGreen calculates your numbers

We don't think a savings calculator should be a black box, so here's exactly how ours works — the same formulas the tool runs behind the scenes.

Step 1 — Annual power yield. How much electricity your proposed system will actually generate in a year:

We use a conservative peak sun hours figure and a realistic system efficiency factor (accounting for inverter losses, panel derating, and real-world conditions) rather than the manufacturer's best-case numbers — so the estimate you see is one we're confident your system will actually meet or beat, not a ceiling you'll fall short of.

Step 2 — Annual financial savings. How much that generation is worth, based on what you'd otherwise spend to produce or buy that same power:

This is the step where the research above matters most. A calculator that only compares against the official grid tariff understates your real savings, because it assumes you're getting reliable, uninterrupted grid power — which, as shown above, most Nigerian households simply aren't. Our effective cost per kWh is built to reflect the real blended cost of keeping your lights on: a mix of whatever grid hours you actually receive, plus the generator hours most households run to cover the rest, priced at real fuel-cost-per-kWh rates.

Step 3 — System cost (CapEx). The real, itemized cost of your hardware — panels, inverter(s) matched to your system's power draw, and batteries sized to store roughly 55% of your daily generation — plus installation, pulled live from our current pricing sheet rather than a flat estimate.

Step 4 — Payback period. How long it takes for your cumulative savings to cover what you paid:

Every one of these numbers is grounded in the sourced research in this article — real fuel prices, real generator consumption rates, real grid reliability data — updated regularly as conditions in Nigeria change, not fixed once and left stale.