1. Determinants of Carbon Benefits for Transatlantic Wood Pellet Trade
Puneet Dwivedi, PhD
Assistant Professor (Sustainability Sciences)
Warnell School of Forestry and Natural Resources
University of Georgia
Madhu Khanna1 and Robert Abt2
1University of Illinois | 2North Carolina State University
University of California – Berkeley
June 01, 2017

2. Outline of the Presentation
Introduction
Objective
Perspectives
Stand Level
Landscape Level
Scenarios
Results
Discussions and Conclusion

3. Wood Pellets 101
Wood Pallet
Wood Pellet

4. Global Industrial Pellet Demand

5. Global Industrial Pellet Demand

6. Global Industrial Pellet Demand

7. Introduction

8. Introduction

9. Objective

10. Stand and Landscape Perspectives
Source:

11. C Emissions – Stand Level Perspective
1000 kWh of electricity in the United Kingdom
622 kg of Wood pellets are needed
(34% conversion efficiency, CV = 17 MJ/kg, MC = 5%)
Biogenic Emissions
295 kg of C is released OR 1085 kg of CO2 is released
1085 g CO2/kWh of electricity generated
Non-Biogenic Emissions (Manufacturing and Transportation of Wood pellets)
190 g CO2/kWh of electricity generated
Total Emissions = Biogenic Emissions + Non-Biogenic Emissions
= g CO2/kWh of electricity generated
= 1275 g CO2/kWh of electricity generated from wood pellets
1048 g CO2/kWh of electricity generated from coal
Electricity derived from Wood pellets is WORSE than Coal by 21%

12. C Emissions - Landscape Perspective
Year 1
Year 2
Year 3 …
Year 26

13. C Emissions – Landscape Perspective

14. C Emissions – Landscape Perspective
1000 kWh of electricity in the United Kingdom
622 kg of Wood pellets are needed
(34% conversion efficiency, CV = 17 MJ/kg, MC = 5%)
Biogenic Emissions
295 kg of C is released OR 1085 kg of CO2 is released
1085 g CO2/kWh of electricity generated
Non-Biogenic Emissions (Manufacturing and Transportation of Wood pellets)
190 g CO2/kWh of electricity generated
Total Emissions = Biogenic Emissions + Non-Biogenic Emissions
= g CO2/kWh of electricity generated
= 190 g CO2/kWh of electricity generated from wood pellets
1048 g CO2/kWh of electricity generated from coal
Electricity derived from Wood pellets is BETTER than Coal by 80%

15. C Emissions – Landscape Perspective

16. Scenarios Potential Changes in Roundwood Utilization
Treatment of Logging Residues
Leaving Logging Residues on the Field
Dumping Logging Residues in the Landfill

17. Roundwood Utilization: BAU

18. Roundwood Utilization: BIO-LR

19. Roundwood Utilization: BIO-LR+PW

20. Roundwood Utilization: BIO-ALL

21. Loblolly Growth and Yield Model

22. Loblolly Growth and Yield Model
Loblolly Pine
(Thin = 13 years, harvest = 25 years)

23. C Balance – Stand Level Perspective

24. C Balance – Stand Level Perspective

25. C Balance – Landscape Level Perspective

26. C Balance – Landscape Level Perspective

27. Overall Carbon Balance

28. Logging Residues
Savings are reported based on an unit of natural gas based electricity.

29. Natural Forests vs Plantation Forests

30. Natural Forests vs Plantation Forests

31. Discussions and Conclusion

32. Discussions and Conclusion
Net Present Value
Pulpwood and Logging Residues Prices have to Increase

33. Discussions and Conclusion

34. Thanks!
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