Potential Cost savings examples

Example 2 - Typical small courier business

  • Fleet: 30 x van (additional cost of CNG van 2k each)
  • Mileage: 30,000 miles/yr
  • Fuel consumption: 20 mpg
  • Filling profile: One fill per vehicle per day (fast-fill) between 6am-6pm

The gas station would be sized for this total load requirement and this daily gas load.

For this example we have a daily gas load of 535 Kgs therefore the compressor capacity requirement is 54 Kgs/hr (for a 10 hour run). This in practice would be done using two compressors each sized at 27 Kgs/hr.

Suitably sized gas storage and two gas dispensers would also be installed.

For this example a typical all-in gas price would be in the region of 85 p/Kg.

Potential savings:

Existing diesel costs (based on 45,000 gallons diesel, 90 p/lit) = 184k (920k over 5 years)

All-in gas price (station, fuel, service etc.), based on 85 p/Kg & 160,000 Kg/yr = 136k (680k over 5 years)

Fuel saving = 48k (240k over 5 years)

Additional cost of 30 CNG vehicles (at 2k each) = 60k

Total 5 year saving (station, fuel, service & vehicles) = 180k

Above figures exclude any additional savings due to reduced VED rates, any congestion charge savings, or any grants that may be available.