Guide to PAS 2050 How to assess the carbon ... - Aggie Horticulture

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Guide to PAS 2050 23 2a Flour production (milling) Electricity used per tonne wheat = 100 kWh Emissions = 0.5 kg per kWh Tonnes wheat per tonne croissants = 0.9 × Emissions per tonne wheat = 50 kg × Emissions per tonne croissants = 45 kg 2b Emissions = 1 kg per km Distance = 100 km × Emissions per trip = 100 kg Flour transport % empty trucks on return = 100% Emissions = 1 kg per km Distance = 100 km Tonnes flour per trip = 20 × Emissions per trip = 100 kg + Emissions per total trip = 200 kg ÷ Emissions per tonne flour = 10 kg Tonnes flour per tonne croissants = 0.7 × Emissions per tonne croissants = 7 kg 2c Emissions = 2 kg per km Distance = 20 km × Emissions per trip = 40 kg % empty trucks on return = 100% + Emissions per total trip = 80 kg Waste transport Emissions = 2 kg per km Distance = 20 km Tonnes waste per trip = 10 × Emissions per trip = 40 kg ÷ Emissions per tonne waste = 8 kg Tonnes waste per tonne wheat = 0.2 Tonnes wheat per tonne croissants = 0.9 × Emissions per tonne croissants = 1.4 kg Waste disposal Emissions = 300 kg per tonne waste Tonnes waste per tonne wheat = 0.2 Tonnes wheat per tonne croissants = 0.9 × Emissions per tonne wheat = 60 kg × Emissions per tonne croissants = 54 kg Note: all emissions described in kg CO 2 e Raw material production (flour example)
24 Section II: Calculating product carbon footprints 3a Baking Gas used per tonne croissants = 1,000 kWh Emissions = 0.2 kg per kWh gas Electricity used per tonne croissants = 200 kWh Emissions = 0.5 kg per kWh electricity × × Emissions per tonne croissants = 200 kg Emissions per tonne croissants = 100 kg + Emissions per tonne croissants = 300 kg 3b Packaging Emissions = 2 kg per kg plastic film Plastic film per 1,000 bags = 20 kg Tonnes croissants per 1,000 bags = 1 × Emissions per 1,000 bags = 40 kg ÷ Emissions per tonne croissants = 40 kg 3c Emissions = 2 kg per km Distance = 50 km × Emissions per trip = 100 kg Waste transport % empty trucks on return = 100% Emissions = 2 kg per km Distance = 50 km Tonnes waste per trip = 10 × Emissions per trip = 100 kg + Emissions per total trip = 200 kg ÷ Emissions per tonne waste = 20 kg Tonnes waste per tonne croissants = 0.1 × Emissions per tonne croissants = 2 kg Waste disposal Emissions = 300 kg per tonne waste Tonnes waste per tonne croissants = 0.1 × Emissions per tonne croissants = 30 kg Note: all emissions described in kg CO 2 e Croissant production
Page 1 and 2: Guide to PAS 2050 How to assess the
Page 3 and 4: Acknowledgements Acknowledgement is
Page 5 and 6: Guide to PAS 2050 1 Introduction Cl
Page 7 and 8: Guide to PAS 2050 3 social and econ
Page 9 and 10: 6 Section I: Start-up Who should be
Page 11 and 12: 8 Section I: Start-up Consider draw
Page 13 and 14: 10 Section II: Calculating product
Page 25: 22 Section II: Calculating product
Page 39 and 40: Guide to PAS 2050 37 Section III Ne
Page 41 and 42: Guide to PAS 2050 39 The potential
Page 43 and 44: Guide to PAS 2050 43 Appendix II Se
Page 45 and 46: • Updates to the service, providi
Page 47 and 48: 48 Appendix III: Product carbon foo
Page 55 and 56: 56 Appendix IV: Uncertainty analysi
Page 57 and 58: 58 Glossary Greenhouse gases (GHGs)

Guide to PAS 2050 How to assess the carbon ... - Aggie Horticulture

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