Using stranded renewable energy for DAC is an interesting idea. Question is what energy resource will be used during periods when there is no surplus RE? If DAC does not run 24/7 its costs go up. If DAC uses RE to run 24/7, that requires a larger RE system with associated stranding. If DAC uses something other than RE, what is it? Ideally, we would have an economically dispatchable zero-carbon resource. This is not an argument against DAC, just an observation on system complexity.
Sent from my iPad On Sep 17, 2017, at 3:58 AM, Andrew Lockley <[email protected]<mailto:[email protected]>> wrote: Does anyone have a breakdown of projected input costs for Direct Air Capture? I'm interested in quantifying the energy component. Swanson's law predicts reliable falls in the cost of solar. Without storage, much peak-time solar could be wasted, unless it's used for time-insensitive applications like DAC or desalination. (I understand Keith's process needs electricity, but Lackner's instead needs heat.) My hypothesis is that DAC could become vastly cheaper, if energy costs trended down as expected due to Swanson's law, and cheaper still if it became a way to use this stranded energy. I'd welcome thoughts, data, projections and comments. Thanks Andrew Lockley -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. To post to this group, send email to [email protected]<mailto:[email protected]>. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
