The net energy cliff

Charles Hall, the father of the energy return on investment (EROI) concept, once told me that our current society would probably not be able to function if the EROI for the entire society slipped below five. … Hall estimates that the United States is currently running on an EROI of just under 40 to 1. This looks like a fairly substantial margin of safety over the 5 to 1 that might lead to societal breakdown. But worrisome developments in the oil, natural gas and coal fields may send us rushing toward that figure.

Peak oil – Sept 12

Vital for the nation’s oil and gas, Port Fourchon looks to rebound
Testimony before the S. Australian Legislative Committee on Peak Oil
EU transport – go green or go under
Peak oil peak – sandwich-board energy theorists are glum
This amazing kid

The dress rehearsal is over

The price spike of early 2008 was merely a dress rehearsal. The fall in oil demand gives the world a moment to catch its breath before the inevitable price-ratcheting process starts up again. Meanwhile, at $100 or so, the price of oil is still 50 per cent higher than last year and 10 times the level of a decade ago.