by way of reference
2 conventional petrol midsize would be Nissan Atlima, Mazda 6 i-loop
http://www.fueleconomy.gov/feg/Find.do?action=sbs&id=34247&id=33906
Fueleconomy.gov rates Nissan as 285g/mile tail pipe and 72 g/mile upstream (357g/mile) WTW
Fueleconomy.gov rates Mazda iloop 275g/mile tail pipe and 71 g/mile upstream (346g/mile) WTW
from the NREL document page 27 http://www.nrel.gov/hydrogen/pdfs/54860.pdf
'The average WTW greenhouse gas emissions estimate for the Learning Demonstration fleet operating on hydrogen produced from on-site natural gas reformation was 356 g CO2-eq/mile'
brilliant, so a hydrogen fuel cell fleet is almost identical in CO2 emissions as a standard Nissan Altima, and is beat by a Mazda with i-loop
but isn't that obvious, hydrogen production and transportation is far more lossey than straight hydrocarbon use.
2 conventional petrol midsize would be Nissan Atlima, Mazda 6 i-loop
http://www.fueleconomy.gov/feg/Find.do?action=sbs&id=34247&id=33906
Fueleconomy.gov rates Nissan as 285g/mile tail pipe and 72 g/mile upstream (357g/mile) WTW
Fueleconomy.gov rates Mazda iloop 275g/mile tail pipe and 71 g/mile upstream (346g/mile) WTW
from the NREL document page 27 http://www.nrel.gov/hydrogen/pdfs/54860.pdf
'The average WTW greenhouse gas emissions estimate for the Learning Demonstration fleet operating on hydrogen produced from on-site natural gas reformation was 356 g CO2-eq/mile'
brilliant, so a hydrogen fuel cell fleet is almost identical in CO2 emissions as a standard Nissan Altima, and is beat by a Mazda with i-loop
but isn't that obvious, hydrogen production and transportation is far more lossey than straight hydrocarbon use.