The True Cost of Generator vs Solar in Lagos

Most Lagosians know generators are expensive. But few have actually done the math on exactly how expensive. This article breaks down the full 3-year cost of running a generator vs installing a solar system — and the numbers may shock you.

The generator situation in Lagos

Lagos State gets an average of 6–10 hours of NEPA supply per day, depending on your area. Some estates in Lekki and Victoria Island fare better; areas like Agege, Bariga, and Mushin often get less than 4 hours. The result: generators run almost every night, and for many hours during the day.

With petrol at ₦1,100–₦1,300 per litre in early 2026 and a typical 2.5kVA generator consuming 1–1.5 litres per hour, the meter runs fast.

Real cost breakdown: Generator (Year 1)

That's assuming moderate use. Heavy users (running AC overnight) can spend ₦400,000–₦600,000 per month on fuel alone. Over 3 years, a generator costs the average Lagos family ₦9–12 million.

Real cost breakdown: Solar (3.5kVA hybrid system)

Side by side: 3-year cost comparison

The break-even point

Based on the numbers above, a ₦700,000 solar installation pays for itself in roughly 3 months — because you stop spending ₦260,000/month on generator fuel.

After break-even, it's essentially free power for 20+ years (the rated lifespan of quality solar panels).

What you don't get with a generator

• Clean, silent power — no fumes, no noise
• Instant-on when NEPA cuts (no running outside to start gen)
• Power available 24/7, even when petrol stations are closed
• No carbon emissions contributing to climate change
• Children sleeping without generator noise and fumes

The bottom line

The generator is not cheap backup power — it's the most expensive electricity you can buy. At ₦260,000+ per month, it costs more than most car loans. Solar is the better investment by every measure: cost, convenience, safety, and long-term value.

The only question is: which verified builder will you hire to install it?