MARGINAL ABATEMENT COST CURVES: COMBINING ENERGY ...

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UCL ENERGY INSTITUTE

MARGINAL ABATEMENT COST CURVES: COMBINING ENERGY SYSTEM MODELLING AND DECOMPOSITION ANALYSIS Fabian Kesicki Energy Institute University College London [email protected]

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OVERVIEW  Concept of Marginal Abatement Cost (MAC) Curves  To address legal commitments  Used since the 1990s as a decision making aid

 Existing Approaches towards MAC Curves  Own Approach  Energy System Modelling  Decomposition Analysis

 Application to the UK Transport Sector  Conclusions Fabian Kesicki, Stockholm, June 21st -23rd 2010

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MARGINAL ABATEMENT COST CURVES  Strengths:  Indicate opportunities to reduce CO2 emissions with their associated costs  Give the total abatement cost for a given reduction level

 Limitations:  No representation of path dependency  Limited representation of uncertainty  No consideration of ancillary benefits  Approaches  Expert-based  Model-derived Fabian Kesicki, Stockholm, June 21st -23rd 2010

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MARGINAL ABATEMENT COST CURVES

Fabian Kesicki, Stockholm, June 21st -23rd 2010

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EXISTING APPROACHES TO MAC CURVES  No approach so far combines:    

Technological detail Consistent assumptions Behavioural aspects Technological, intersectoral, intertemporal interactions  Framework for structured consideration of uncertainty

Fabian Kesicki, Stockholm, June 21st -23rd 2010

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OWN APPROACH

Input Data UK MARKAL Model

Future Scenarios of UK Energy System Emission Restrictions

Low Carbon Scenarios Consolidation

Marginal Abatement Cost Curve (MACC) Index Decomposition Analysis

Technologically Detailed MACC

Sensitivity Analysis

Robust Carbon Reduction Portfolio Fabian Kesicki, Stockholm, June 21st -23rd 2010

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ENERGY SYSTEM MODEL UK MARKAL  MARket ALlocation optimisation model developed by IEA’s implementing agreement ETSAP  A dynamic partial equilibrium approach with perfect foresight minimising total discounted system costs  Technology rich bottom-up model  end-use technologies, energy conversion technologies, refineries, resource supplies, infrastructures etc

 An integrated energy systems model  Energy carriers, resources, processes, electricity/CHP, industry, services, residential, transport, agriculture

 Physical, economic and policy constraints to represent UK energy system and environment  Time horizon 2000-2070  Extension to MARKAL-Macro (M-M), Elastic Demand (MED), Stochastic, MIP, other variants  MED: Maximising producer and consumer surplus under conditions of perfect foresight, accounting for the response of energy service demands to prices Fabian Kesicki, Stockholm, June 21st -23rd 2010

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DECOMPOSITION ANALYSIS  The goal of decomposition analysis is to explicitly set forth the contribution of driving factors behind the change of an aggregate variable.

CO2 Emissions Energy Demand Structural Changes

Fuel Intensity

Carbon Intensity of Fuels 8

Fabian Kesicki, Stockholm, June 21st -23rd 2010

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DECOMPOSITION ANALYSIS

 Logarithmic Mean Divisia Index (LMDI) used for decomposition Fabian Kesicki, Stockholm, June 21st -23rd 2010

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CO2 EMISSION PROFILE IN 2030

 High cost scenario: Fossil fuel production costs are doubled compared to low cost scenario Fabian Kesicki, Stockholm, June 21st -23rd 2010

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FUEL PRICES (DARK: LOW COST/ LIGHT: HIGH COST)

Fabian Kesicki, Stockholm, June 21st -23rd 2010

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MAC CURVE FOR THE UK ENERGY SYSTEM IN 2030 (LOW COST SCENARIO)

Fabian Kesicki, Stockholm, June 21st -23rd 2010

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TRANSPORT SECTOR MACC (LOW COST) Cars

Imp. Biodiesel Cars FT from Energy Crops Electr. Decarbonisation

Imp. Biodiesel

Electricity

Coal CCS

Coal IGCC

Natural Gas Bus

HGVs

Bus

HGVs

HGVs Nuclear

Fabian Kesicki, Stockholm, June 21st -23rd 2010

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TRANSPORT SECTOR MACC (HIGH COST) Cars

FT from Energy Crops

Electr. Decarbonisation

FT from Energy Crops

Electr. Decarbonisation Imported Biodiesel HGVs Nuclear Import

Coal CCS

HGVs Nuclear

Fabian Kesicki, Stockholm, June 21st -23rd 2010

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COMPOSITION OF ELECTRICITY GENERATION IN 2030 (LOW COST)

Fabian Kesicki, Stockholm, June 21st -23rd 2010

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DECOMPOSITION OF TOTAL MAC CURVE (LOW COST)

Fabian Kesicki, Stockholm, June 21st -23rd 2010

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CONCLUSIONS  Benefits of the new approach:  Considers different types of interactions  Explicitly attributes emission reductions to measures  Considers uncertainty

 Decarbonisation of UK Transport Sector  Insensitive to fossil fuel price changes  Biggest contribution from decarbonisation of electricity, hydrogen and increase of biodiesel  Important role of structural changes towards battery, diesel hybrid and hydrogen vehicles Fabian Kesicki, Stockholm, June 21st -23rd 2010

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FURTHER RESEARCH    

Consider shifts between transport modes Increase analysis of uncertain parameters Extend analysis beyond the transport sector Use a different energy system model

Fabian Kesicki, Stockholm, June 21st -23rd 2010

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Thanks for your attention Any questions, comments or thoughts?

Fabian Kesicki [email protected] Fabian Kesicki, Stockholm, June 21st -23rd 2010

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BACK-UP SLIDES

Fabian Kesicki, Stockholm, June 21st -23rd 2010

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ENERGY SYSTEM MODEL MARKAL Resource supply

Fuel processing and supply

Conversion Technology

T&D networks

Electricity Export

Electricity Import

Uranium Import

Nuclear fuel processing

Nuclear plants Remote power gen. (e.g. offshore wind)

Coal mining

Coal

Hydro (large)

Electricity transmission grid

Micro generation

Coal-fired plants

Oil imports Domestic oil exploration

End energy use

Diesel Refinery

Residential

CCS Gas GTCC

Auto power generation

Fuel oil Diesel engine

Natural resources (e.g. wind, solar)

Duel fuel plants Biogas CCGT

Gas imports Natural gas LNG terminal Wastes (e.g. MSW)

Energy crops, Agro residue

Industry

Electricity distribution grid

Transport

Small/micro hydro Wind

Landfill gas Sewage gas

Service

Solar PV Biogas

Biomass

Micro CHP

Biomass co-fired Distributed CHP

Heat distribution pipelines

Fabian Kesicki, Stockholm, June 21st -23rd 2010

Residential Industry

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DECOMPOSITION ANALYSIS Et

yt ∆y

x0*∆y

∆x*∆y

E0

y0*∆x

y0

0

22

x0

∆x

Fabian Kesicki, Stockholm, June 21st -23rd 2010

xt

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DECOMPOSITION ANALYSIS

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Fabian Kesicki, Stockholm, June 21st -23rd 2010

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