This marks the final installment of answers to questions recently submitted by readers. This final installment covers the impact of E10 on fuel efficiency, my general optimism (or lack thereof), algal fuel, thermodynamics and energy […]
Tag: eroi
The Energy Return of Tar Sands
When evaluating energy technologies – whether conventional fossil fuels or alternative energy – one thing that I pay close attention to is the Energy Return on Energy Invested (EROEI). While there are legitimate criticisms of […]
Understanding EROEI
Introduction The concept of energy return on energy invested, or EROEI, is terribly misunderstood. I have heard people argue that EROEI doesn’t matter, only economics. This misses a very key point: EROEI is going to […]