the deep decarbonization pathways project (ddpp): national scale action to meet global mitigation...
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The Deep Decarbonization Pathways Project (DDPP)
National scale action to operationalise the 2⁰C target
Steve Pye, UCL Energy Institute
June 1st 2015
67th Semi-annual ETSAP meeting, Abu Dhabi
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Presentation overview
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• What is the DDPP, and why does it matter?
• UK analysis under DDPP using a TIMES model
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The DDPP Initiative
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• Objective to demonstrate that countries can achieve deeply decarbonized energy systems by 2050, commensurate with the transformation required under the internationally agreed 2 °C target.
• Based on national level analyses by a consortium of the 16 largest emitting countries (>70% of global energy-related CO2 emissions).
• Each country developing multiple transition pathways to demonstrate how deep reductions can be met, guided by preliminary 1.6tCO2/capita.
• No burden sharing – all countries have to move in this direction.
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Strengths of DDPP
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• Operationalises the 2°C target at national level
• Use of country-focused analysis means national context and characteristics accounted for
• Multiple pathways, recognizing different options
• A long term framework, critical for analyzing type of system transitions required
• Credible with national stakeholders; analysis undertaken by established, independent country teams
• Of course some key challenges – – Coordination!
– Consistency of assumptions between teams
– Different tools, and need for aggregation of results
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The role of TIMES in DDPP
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• Over 40% of national teams are using TIMES modelling to some extent.
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DDPP aims to make a difference in 2015, a critical year
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• Backed by the UN and French Government.
• Interim report delivered to Ban Ki-moon in July 2014, in support of the Leaders’ Climate Summit, and to the French Foreign minister.
• Final report to be published in September 2015 – and key publication in run up to COP21.
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An iterative process: can the required reductions be made?
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Significant reduction of energy-related CO2 emissions in 2050/2010
-45% in absolute
-56% per capita
-88% per GDP
However, not sufficient for the 2°C target
Energy-related CO2 emissions (Gt)
IPCC estimates at the global level
15 DDPs
2050 level 12 11,5
Cumulative 2010-2050 825 792
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What do we hope can be achieved?
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• Demonstrate strong decarbonisation can be achieved based on rigorous analysis, as required by science.
• Recognition at COP-21 that DDPs are a necessity (but in no way play into the negotiations at this stage).
• Provide a network and tools to facilitate and support wider DDP participation.
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DDPP activities / outputs
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• First round of DDP analysis (September 2014)
• Technical feasibility and options
• One illustrative Pathway
• Challenges and enabling conditions
• Second detailed national analyses (June 2015)
• Final DDPP report (September 2015)
• Climate Policy Special Issue (~December 2015)
Full report available at www.deepdecarbonization.org
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A brief overview of the new UK analysis
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• Current emissions
• Key challenges facing UK to achieve a DDP
• Scenario formulation
• Selected modelling results
• Conclusions for policy
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Current GHG emissions: CO2 from energy use is critical, accounting for 82% of total GHG emissions
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What are the key transition challenges?
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Developing DDPP scenarios
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D-EXP Decarbonise and expand
M-VEC Multi-vector pathways
R-DEM Demand side focus
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Strong per capita emission decline necessary by 2030
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• Rapid reduction necessary, with a near halving of per capita emissions by 2030.
• Key issue of residual emissions in 2050.
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How do we decarbonisation the system?
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• Out to 2030, primarily in the power sector – with stronger activity towards end use sectors post-2030.
• However, large market capacity investment pre-2030 to scale end use technology deployment.
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Power sector decarbonisation vital – but different pathways
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• Strong decarbonisation by 2030, and system expansion by 2050.
• Different systems emerge based on outlook for different technologies.
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Transport: the transition to low emission vehicles
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• Strong passenger car decarbonisation, driven by electrification in long term but also important role of ICE/hybrid efficiency, and hydrogen; limited role for biofuels.
• Virtually no oil left in the mix by 2050.
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Residential buildings: re-orientation of energy services
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• Shifting from central heating a big challenge.
• Later mitigation in sector compared to transport; strong role for heat pumps – but gas use continues to deal with heating peak.
• Role for district heating, providing additional storage in strongly electrified sector. Stronger role if harness other low carbon heat sources but infrastructure challenge.
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The role of CCS
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• A large part of the transition is predicated on emergence of CCS, although to a lesser extent under M-VEC.
• Huge uncertainty in modelling analysis, with implications for policy / international cooperation.
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Gas supply
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• Distribution level supply drops off significantly. • Post-2030 not a license for further fossil exploitation as wholly contingent on CCS
(H2 production, power generation).
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Report messages: domestic policy
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• Consistency of policy portfolio EMR implementation, Airport expansion, Infrastructure Bill • Long term legislative framework but limited policy time horizon, and current
ambition gap • Delivering action we know about with negligible regret Energy efficiency programme ambition weak; strong opportunity for cost- effective action, and dealing with energy poverty. • Preparing for long term critical #10yearstoprepare
• Review ambition of 2050 target, with the need for a push to net-zero soon after
2050
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Report messages: international engagement
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• Increase global cooperation on technologies, particularly on CCS, offshore wind and LEVs
• Share experiences and legislation, policy and institutions (de-politicization, independent advice, monitoring)
• Continue to (and increase) spend on climate-focused development
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Such models have been used to inform UK climate & energy strategy since 2003
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RCEP 2000 EWP 2003 CCC 2008 EWP 2007 DECC 2011
Proposed targets
Building evidence base and political consensus
Legislative framework and targets
Implementation framework