Product Mix and Output Algorithm
Submission to DEFRA for Pre-Approval
Date of Submission: 11th March 2002
Company Name: Great Foods Limited
123 Station Road, Any Town, AB23 2XY
Contact Name: John Smith
Telephone:
Email:
Facility Number: FDF/1234/5678
Approach Used: FDF Common Approach 2 and 10
Brief Summary of
Product Mix and Output Changes:
Great Foods manufactures chilled and frozen lasagne.
During the last few years, there has been a change in the market such that we now manufacture more frozen lasagne than we did during our base year. Frozen lasagne obviously consumes more energy per tonne of product than chilled lasagne.
The frozen and chilled products are made on different production lines, however, there are no sub-meters present on site.
In this submission
we have used FDF Common Approaches 2 and 10 to adjust our carbon based
target for an increase in production of frozen lasagne and decrease in
chilled lasagne from the Base Year to the expected value for the 1st milestone
period.
This dummy submission is exactly the same as Dummy Submission CA 2, except for Section 4 as detailed overleaf.
|
Base Year |
1999 |
|
| Frozen Lasagne | tonnes |
2,200 |
| Chilled Lasagne | tonnes |
9,300
|
|
Electricity |
kWh |
4,765,240 |
|
Fossil Fuel (Nat. Gas) |
kWh |
856,750 |
|
Primary Energy |
kWh |
13,246,374
|
|
Selected Currency |
kWh /tonne |
|
|
Base Year SEC |
kWh/tonne |
1,151.9
|
|
1st Milestone SEC |
kWh/tonne |
1,128.8
|
Equations Derived using Milestone Year Data:
Weekly Electricity =
53,630 + (87.1 x weekly chilled lasagne) + (220.9 x weekly frozen lasagne)
(equation 1)
Weekly Gas =
7,671 + (48.1 x weekly chilled lasagne) + (8.6 x weekly frozen lasagne)
(equation 2)
Primary Energy = 2.6 * electricity use + 1 * gas use
= 147,185 + (274.6 x weekly chilled lasagne) + (582.9 x weekly frozen lasagne)
(equation 3)
Primary SEC = Primary Energy / production
= 147,185 + (274.6 x weekly chilled lasagne) + (582.9 x weekly frozen lasagne)
.......................(weekly chilled lasagne + weekly frozen lasagne)
(equation 4)
4. Example of Target Adjustment
Actual Average weekly
output in Base Year: frozen = 42.3 tonnes per week
................................................................chilled
= 178.8
Estimated Average
weekly output in Milestone Year: frozen = 115.3
............................................................................chilled
= 63.5
Then values of SECs have been calculated as follows:
| All SECs in kWh/tonne | Primary SECs | |
| SEC1 | Target year, base year production levels |
999.1 |
| SEC2 | Target year, milestone year production levels | 1,194.1 |
| SEC3 | Base year, base year production levels | 1,151.9 |
| SEC4 | Base year, milestone year production levels | 1,375.9 |
Using SEC4 values from above,
Modified primary SEC in Base Year = 1,375.9 kWh/tonne
Modified target = 2 % reduction x modified base year SEC
= 0.98 x 1,375.9
= 1,349.2 kWh / tonne
To convert the target to kg Carbon/tonne:
| Actual carbon use in base year: | Electricity | = 4,765,240 x 2.6 x 0.0453 |
| = 561,250 kg C | ||
| Gas | = 856,750 x 0.0518 | |
| = 44,380 kg C | ||
| Actual Total Carbon = 605,630 kg C | ||
| Actual base year carbon conversion factor............= |
Actual Total Carbon
|
|
|
Actual
Total Primary Energy
|
||
| = 605,630 = 0.04572 kg C/kWh | ||
| .13,246,374 | ||
Convert the Modified Target in kWh/tonne to kgC/tonne:
Modified Target =
1,349.2 kWh/tonne x 0.04572 kgC/kWh = 61.68 kgC/tonne