Although a complete cost analysis is much more complicated, the particular question only requires the following: an energy cost estimate (in terms of $/Joule).(adsbygoogle = window.adsbygoogle || []).push({});

This was directed to be done by taking volumetric or mass based costs of each fuel as well as the associated energy conent or energy density.

I am finding it very difficult to find any reliable information through google.

Where I'm living gas costs are about $1.02/L right now. My research lead me to an energy density of 32 MJ/L for octace which I used for the gasoline calc.

For Hydrogen, most costs seems to be between 3-4 $/kg with an energy density of around 120 MJ/kg.

These numbers result in similar $/Joule results for both fuels, which I'm pretty sure should not be the case. Do those numbers make sense? Is there a reliable source where I can check my data.

Please ignore all other costs and efficiencies associated with the two fuels and engines. This is just a very simple calc once I have the correct data.

Your help is much appreciated.

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# Cost estimate of Hydrogen Fuel Cells versus Gasoline

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