Sustainable Practices and Feedstock Production

CBC Joint Forum on Bioenergy Sustainability and Life Cycle Analysis Sacramento, May 28-30 2008 Sustainable Practices and Feedstock Production Profes...
Author: Chester Merritt
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CBC Joint Forum on

Bioenergy Sustainability and Life Cycle Analysis Sacramento, May 28-30 2008

Sustainable Practices and Feedstock Production Professor Ralph E H Sims

INTERNATIONAL ENERGY AGENCY

Renewable Energy Unit International Energy Agency, Paris [email protected] Massey University, New Zealand

Aims in the next 20 minutes….. z To provide an update on biomass and bioenergy based on the latest IPCC and IEA reports. z To comment upon the biomass supply chain. z To outline the challenges to meet greenhouse gas mitigation targets. INTERNATIONAL ENERGY AGENCY

Between 1970 and 2004 global greenhouse gas emissions continued to increase Total GHG emissions 60 55 50 45

GtCO2-eq/yr

+70%

40 35 30 25 20 15 10 5 0

1970

1980

IPCC 4th Assessment Report – Mitigation 2007

1990

2000 2004

In spite of all the policies, all the technologies, and the high energy prices since 2001, GHG continue to accelerate. accelerate

Energy related carbon dioxide is the largest contributor at around 60% of total emissions. Agriculture contributes around 10% from N2O and CH4 IPCC 4th Assessment Report – Mitigation 2007

Long-term mitigation: stabilization and equilibrium global mean temperatures

The lower the stabilization level aimed for, the earlier global CO2 emissions have to peak.

IPCC AR4 Biomass - cross cutting chapters

INTERNATIONAL ENERGY AGENCY

Competition for the biomass resource?

What will be the competition for the future biomass resource? • Heat • Power • Combined heat and power • Transport fuels • Bio-materials • Bio-chemicals • Soil conditioning INTERNATIONAL ENERGY AGENCY

• Bio-refineries

Is biomass best used for heating? With major contributions from the Implementing Agreements:

INTERNATIONAL ENERGY AGENCY

-Renewable Energy Technology Deployment, - Bioenergy, - Geothermal, - Solar Heating and Cooling - SolarPACES

The report examined the various REHC technologies, costs, markets and policy effectiveness. Solar thermal - water and space heating - solar assisted cooling Bioenergy - pellet heating - CHP - anaerobic digestion - MSW waste-to-energy Geothermal - deep conventional - deep advanced - shallow geothermal

Installed capacity GWth 100-110

Total

Energy output PJ/yr 200-220

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