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Costain Speedy Case Study Breakdown
Working
Method 1
Energy from HVO
Litres of HVO consumed: litres per year
67340
kWh per litre HVO consumed: kWh per litre
0.8008
Total Site Energy Consumption Per Year: kWh per year
53,926
Cost of the HVO per litre: £
1.84
Cost of HVO fuel per kWh: £per kWh
2.297702297702298
Cost of HVO Solution (all costs combined) per kWh: £
£2.53
Energy from Solar
Number Solar Panels
25
Each Solar Panel is a set of four, estimated to be rated at Watt
1,320
Total Generation Capacity: kW
33
Yearly Generation Capacity per kW based on irradiation data for Colchester: kWh / kW installed / year
1,015
Total Yearly Generation Capacity for this system: kWh
33,495
Missing Energy Delivered by Hydrogen
Missing Energy after solar system generation is taken off site consumption: kWh
20,431
NB: This is only theoretically the case if all solar can be consumed when it is being generated, or if the inverter includes a battery to store excess solar energy.
Cost of hydrogen
Stated annual hydrogen fuel cost:
£38,250.16
Calculated Hydrogen cost per kWh:
£1.87
Calculated Hydrogen total cost per kWh (including generator):
£2.55
Calculated Hydrogen fuel cost per kg:
£28.27
Calculated kg Hydrogen required per year: kg
1353
Cost of solar
Total cost of solar system (distribution board, solar panels, inverter):
£77,507
Total cost per kWh for solar generated: per kWh
£2
Costs of different setups
Stated Costs of HVO
Cost Type
Total Annual Cost
Number of Units
Cost Per Unit
60kVA Generator Hire
£4,084.00
1
£4,084.00
AutoMate Rental
£8,736.00
1
£8,736.00
HVO Fuel
£122,558.80
67340
£1.82
Fuel Tank
£921.96
1
£921.96
There are no rows in this table
£136,300.76
Sum
Total Cost of HVO:
£136,300.76
Stated Costs of Solar & Hydrogen
Cost Type
Total Annual Cost
Divisible By Units
Cost Per Unit
Distribution Board
£3,840.00
1
£3,840.00
Solar Panels
£50,557.00
25
£2,022.28
Inverter
£23,110.00
1
£23,110.00
Hydrogen Fuel
£38,250.16
Hydrogen Generator
£13,809.12
1
£13,809.12
There are no rows in this table
£129,566.28
Sum
Total Cost of Solar & Hydrogen:
£129,566.28
Method 2
Amount of hydrogen consumed
The usable hydrogen in 1 MCP from BOC is around kg. Total hydrogen per year is kg hydrogen.
9
468
Energy from hydrogen
One Kg of hydrogen through averagely running generator is kWh.
16
With site energy usage at around kWh.
7,488
Cost of hydrogen
Rental of two MCP packs per month for the year is £ (there are only ever two packs on site)
£6,240
Hydrogen fuel would cost £ for the year.
£23,946
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