Net-zero carbon: context & challenges Milan Elkerbout CEPS - PowerPoint PPT Presentation

Net-zero carbon: context & challenges Milan Elkerbout CEPS Energy Climate House CEPS, 4 December 2018

Re Renewed impetus: Ne Need t to g go t to z zero a and b beyond ü Updated long-term climate strategy ü IPCC: Special Report on 1.5C Ø Gross emissions reductions: mitigation close to zero Ø Negative emissions: compensate residual & net-negative 2

Ho How w to do do it: it: tec echno hnolo logy clus luster ers • Bio-economy: sinks and material substitution • Bio-energy with CCS- BECCS • Carbon Capture and Storage - CCS • Carbon Capture and Use - CCU • Direct Air Capture - DAC 3

Wha What are the he cha halleng nges s and nd trad tr ade-of offs? • Scale: negative emissions hard to deliver; keep it as small as possible (i.e. mitigation) • Competition for land • CCS and negative emissions both needed • CCU: great to enable capture, but limited potential • DAC: impossible to pull off? Massive amounts of low- carbon electricity and heat • Transportation & storage of carbon dioxide 4