The Allam Cycle is a Brayton cycle utilizing supercritical CO2 as working fluid providing high thermodynamic efficiency and integrated CO2 capture. The Energy & Environmental Research Center, 8 Rivers Capital, LLC, and the North Dakota Industrial Commission Lignite Energy Council are working to develop lignite-based Allam Cycle technology in support of ALLETE, Inc., and Basin Electric Power Cooperative. Specific challenges are gasifier selection, syngas impurities removal, and corrosion. Results from laboratory experiments and pilot-scale testing to support this effort are presented. No insurmountable technology barriers were found for development of a lignite-based Allam cycle technology.