This Vox article was cited multiple times in the October 10th Resource Planning Working Group meeting by Cary Ferchill, Chair of the working group and Austin's Electric Utility Committee for 2019-2020.
Roberts, David. 2019. “Getting to 100% Renewables Requires Cheap Energy Storage. But How Cheap?” Vox, August, 13.
David Roberts, 27 July 2020, "GETTING TO 100% RENEWABLES REQUIRES CHEAP ENERGY STORAGE. BUT HOW CHEAP?", contributed by James Adams, The Energy Rights Project, Platform for Experimental Collaborative Ethnography, last modified 29 August 2022, accessed 25 September 2023. https://energyrights.info/content/getting-100-renewables-requires-cheap-energy-storage-how-cheap