Generator Costs in Lagos — What You Actually Pay
5 sizes from 2.5KVA to 60KVA · monthly fuel cost · brands ranked · maintenance schedule
Generators are the largest recurring expense for most Lagos households — frequently exceeding rent for low-income families and food for middle-income ones. The right question is not 'which generator to buy' but 'what will it cost me to run, monthly and across 7 years?'. This page has the real numbers.
| Brand · Model | KVA | Fuel | Price | Fuel /hr | Monthly fuel (8h) | Best for |
|---|---|---|---|---|---|---|
| Sumec Firman SPG3000E2 | 2.5 | petrol | ₦180.0K–250.0K | 0.8L | ₦253.4K | 1-bed flat — lights, fans, TV, fridge |
| Sumec Firman SPG6800E2 | 5 | petrol | ₦350.0K–480.0K | 1.5L | ₦475.2K | 2–3 bed house — lights, fans, TV, fridge, small AC |
| Lutian LT8000 | 6.5 | petrol | ₦450.0K–600.0K | 2L | ₦633.6K | 3-bed house with AC |
| Mikano DG20 | 20 | diesel | ₦2.5M–4.0M | 3.5L | ₦1.6M | Large compound, small office, multiple AC units |
| Perkins Perkins 60KVA | 60 | diesel | ₦8.0M–15.0M | 8L | ₦3.7M | Office building, estate, industrial |
Monthly fuel based on 8hrs/day running at current pump prices (petrol ₦1,320/L, diesel ₦1,950/L).
Match KVA to your load
Generator sizing is where most Lagos households waste money. Oversized generators burn fuel for load that isn''t there; undersized generators fail under load or wear out fast. The basic rule: add the wattage of every appliance running simultaneously, then add 25% headroom for motor startup surge.
- 2.5KVA (2,000W usable): 1-bed flat — lights, fans, TV, fridge, phone charging.
- 5KVA (4,000W usable): 2-3 bed house with one small AC, fridge, TV, fans, microwave.
- 6.5KVA (5,200W usable): 3-bed house with 2 AC units, full appliances, water pump.
- 20KVA (16,000W usable): Large compound or small office. 4-5 AC units, multiple fridges, security lights.
- 60KVA (48,000W usable): Office building or estate. Industrial loads, lifts, multiple HVAC zones.
Skipping service is the number-one reason generators die early in Lagos. The manufacturer-recommended maintenance schedule is straightforward: oil change every 250 running hours (roughly every 4-6 weeks for an 8hr/day generator), air filter every 6 months, full service (oil + filter + spark plug + battery check) every 12 months. Residential service runs ₦15K-₦40K; industrial service for 20KVA+ runs ₦60K-₦200K.
Lifespan with proper maintenance: petrol generators 5-7 years, diesel 8-12 years, industrial diesel 15+ years. Without service: petrol 2-3 years, diesel 4-6 years. The difference is not small.
At current petrol prices, every Lagos household running a 5KVA+ generator breaks even on solar within 4 years.
If your area is Band A (₦209.50/kWh), generator becomes optional. Check your band.