Consumption based options to reduce GHG emissions Leiden
Consumption based options to reduce GHG emissions Leiden University, CML: Joao Rodrigues, Valentina Prado, Ester van der Voet NTNU: Dan Moran, Richard Wood
Context • First step ins scenario analysis • Focus in technical potential • No rebound effects at this stage • Focus on GHG • Results relative to total EU GHG footprint
113 options 1 2 Goal To asses GHG mitigation potential of consumer based options in the EU 84 options Quickscan 30 options Detailed Analysis • Two fold approach • EXIOBASE MR-EE inputoutput table used for calculations
About the Quickscan Translate 84 options in terms of EXIOBASE • Final demand reduction • Efficiency improvements in the processes of the supply chain: changes in coefficients • Changes in the supply chain: changes in structure Upcoming publication by NTNU and CML in this methodology
Quickscan Results 48% 34% 20%
Quickscan Results ~10%
Detailed Analysis Detailed analysis Options from transport, building, food • Modifications in structure and coefficients based on literature • Country specific inputs and results • Hybrid LCA - more detail in sectors - full hybrid analysis using EXIOBASE as background system
350 kg CO 2 % Savings 300 4, 4% 250 200 3, 3% 150 2, 0% 50 Near zero energy buildings 4% 3% 100 0 5% Thermal insulation Passive houses 1, 4% 2% 0, 8% Timber frame Reduce thermostat 2 degree 1% 0% Relative Savings Billions kg of CO 2 eq Savings Detailed: building
Building Results Passive House
in . . . ar sh ar In in cr g ea se d re. . . Ai rt ra ve l C io n . . . ns p 400 ed uc t tra 600 R ic in g 800 oo l 20% Pu bl ar p ca rs . . . ca 1000 C tri c ec El n yd ro ge H Billions Total Savings in kg CO 2 1600 1400 1200 18% Direct Same country Rest of EU 27 Rest of the World % relative to all EU 27 11% 10% 200 0 2% 1% 1% -200 1% 28% 20% 12% 4% -4% Relative savings in % of EU 27 CO 2 footprint Transport Results
Food Results 5, 5%
Conclusions • Large potential for consumption based GHG reduction • Twofold approach practical for a large number of diverse options • GHG savings in Buildings
Thank you!
Hydrogen cars 300 250 200 150 100 50 0 -50 DE FR GB IT HU ES PL NL GR BE AT RO CZ PT LU FI SE IE DK SK LT BG SI LV CY EE MT Savings in kg of CO 2 Billions Transport Results EU 27 Countries Direct Same country Rest of EU 27 Rest of the World
Building Options Passive Houses: k. Wh/m 2 standard, implementation in single family homes NZEB: Passive house WITH renewable energy on site Thermal Insulation: U-Value of wall insulation Timber frame: single family homes. Substitution rates Thermostat temperature: reduction in space heating
- Slides: 16