Solar is not cheap, and anyone who tells you it is "free power" is selling something. So here is the honest version.
The short answer
If you run a generator most days, yes, solar is worth it in 2026, and it gets more worth it every time fuel goes up.
The numbers
At about ₦1,500 per litre of petrol in Port Harcourt (October 2026):
| Generator use | Fuel per day | Fuel per month | Fuel per year |
|---|---|---|---|
| Small gen, 5 hrs/day | ~4 litres | ~₦180,000 | ~₦2.16M |
| Small gen, 8–10 hrs/day | ~8 litres | ~₦360,000 | ~₦4.32M |
| Bigger gen for AC, 10 hrs/day | ~15 litres | ~₦675,000 | ~₦8.1M |
Add roughly ₦180,000 a year for servicing, plugs, oil and repairs, and a replacement generator every few years.
Now compare that with a one-off solar system:
- 3kVA with 5kWh lithium: from about ₦2.8M
- 6kVA with 16kWh lithium (runs one AC): from about ₦4.9M
A household spending ₦360,000 a month on fuel pays back a ₦4.9M system in about 14 months. After that, the money stays in your pocket for the 8 to 15 years the battery lasts and the 25 years the panels last. See the full five-year generator vs solar comparison, or put in your own fuel spend in the solar calculator.
Who gains the most
- Homes running a generator every evening in Port Harcourt, Warri, Yenagoa and anywhere grid supply is weak
- Shops and small businesses that lose sales or stock when power goes. See solar for small businesses
- Island and riverine communities like Bonny and Brass, where fuel costs more
- Landlords of lodges and flats, where one system ends daily fuel arguments
When solar is less worth it
- You get near-24-hour stable grid supply. Solar then mainly cuts your bill, and payback is slower. Read what solar replaces on your PHCN bill.
- You rarely use a generator and can live with outages.
- You can only afford a system too small for your loads. An undersized system disappoints and its batteries die early. It is better to start with a correctly sized small system and add to it.
What makes it worth it in practice
- Size it for your real loads and rainy-season sun. Use the calculator or what a 3kVA, 5kVA and 10kVA system can power.
- Buy lithium, not lead-acid. Here is why.
- Use genuine panels and a pure sine wave inverter. Spot fakes here.
- Choose an installer who will still answer the phone next year. 12 questions to ask.
Full system prices are on our pricing page.
