Given the following Data:
Estimated Price of Petrol: ₦1,350/Liter
Estimated Price of Diesel: ₦2,000/Liter
Estimated Household Load: 2,000Watts (2Kw)
1. To Calculate:
Assuming you run your Petrol or Diesel Generator for 12 hours of the day, everyday for one full year, then:
Daily Energy Consumption for 12 hours
Energy Consumed = Power (Kilowatts) x Time (Hours)
Energy Needed per day = 2Kw x 12Hrs = 24KWH
2. Estimated Fuel Consumption by Generator Type
Generators burn fuel at a specific rate per kilowatt-hour produced (known as Specific Fuel Consumption, or SFC):
- ⛽ Petrol Generators: Consume roughly 0.35 to 0.55 liters per kWh.
- 🛢️ Diesel Generators: Consume roughly 0.25 to 0.35 liters per KWh.
3. Final Volume Breakdown for Petrol Generator:
Minimum Fuel Consumption: 24KWH x 0.35L/KWh = 8.4 Liters
Maximum Fuel Consumption: 24KWh x 0.55L/Kwh =13.2 Liters
On Average, Fuel Consumed per day approximately equal to 10.8 Liters
At the current Estimated Price of Fuel (₦1,350/Liter),
Amount Spent per day on running Generator for 18 hours is approximately = 10.8 x ₦1,350 = ₦14,580
Average Amount spent on Petrol per day = ₦14,580/day
Amount Spent on Petrol in One Year is approximately = ₦14,580 x 365 days = ₦5,321,700
4. Final Volume Breakdown for Diesel Generator:
Minimum Fuel Consumption: 24KWH x 0.25L/KWh = 6.0 Liters
Maximum Fuel Consumption: 24KWh x 0.35L/Kwh =8.4 Liters
On Average, Fuel Consumed per day approximately equal to 7.2 Liters
At the current Estimated Price of Fuel (₦2,000/Liter),
Amount Spent per day on running Generator for 18 hours is approximately = 7.2 x ₦2,000 = ₦14,400
Average Amount spent on Diesel per day = ₦14,400/day
Amount Spent on Petrol in One Year is approximately = ₦14,580 x 365 days = ₦5,256,000
Note:
(1). Older or poorly maintained Petrol and Diesel Generators can consume up to 20-30% more fuel than these optimized estimates.
(2). This does not include the cost of the generator, or the cost of oiling and servicing it regularly. It is just the cost of fueling it for one year.
