nge from 0.8:1 to 1.6:1. Charles Hall at SUNY ESF (originator of the EROI concept in the 1970's) published recent EROIs boron (1020): Tar sands and Shale Oil (85); Nuclear (5.15) and Wind (1520. but that excludes the cost of backup peaking plants). In that context. the EROI for com ethanol, which exclude