7 DACCS
Anderson
DACCS typically relies on renewable energy to flow air over a catalyst, where the CO2 is captured before being stripped from the catalyst and subsequently stored. Despite its engineering appeal, it is still a fledgling technology and with very little scope to deliver real carbon reductions within the tight 1.5 °C–2 °C timelines. Moreover, as it stands today, in almost all nations, electricity, the key power source for DACCS, is under 20% of ‘final energy consumption’, and only a relatively small fraction of that is from low carbon generation. A triage approach to how we use what low-carbon energy supply we have would very likely see DACCS a long way down the priority order.