EROI (energy return on energy invested) - Antoine Bret

Oil/gas 1930. Oil/gas 1970. Oil/gas 2005. Oil (world) 1999. Coal. Hydro. Tar sands. Shale oil. Nuclear fission. Photovoltaic. Ethanol (sugarcane). Corn−based ...
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EROI (energy return on energy invested)

120

20

Oil/gas 1930

100

Wind

18

Hydro

16

Coal

14

0

From: David J. Murphy and Charles A. S. Hall. Year in review - EROI or energy return on (energy) invested. Annals of the New York Academy of Sciences, 1185(1):102–118, 2010.

no ie

se

l

et

ha

an rc ga

−b

su l(

Tar sands

od

2

Photovoltaic

rn

Oil/gas 2005

Shale oil

Co

4

20 0

6

no

Oil (world) 1999

ha

Oil/gas 1970

Et

40

e)

8

l

Nuclear fission

10

ed

60

Bi

EROI

EROI

12

as

80