Aug 25, 2017 · 1 min read
Norman, new assessments have changed the idea that the “legacy oil” had an EROI=100. It seems that crude oil never had an EROI larger than about 30, and the fastest growing periods were for EROIs around 20. So, wind turbines can do better than that and PV is not so far away from these values. And, more than that, we have to be happy with what we have!