Skip to main content

View Diary: Recent DOE Break-Through with Hydrogen Fuel Cells, should make them Affordable (275 comments)

Comment Preferences

  •  some caveats (2+ / 0-)
    Recommended by:
    itzik shpitzik, jamess

    First, completely consistent with what you wrote, but an important reminder for some:

    Hydrogen is not a significant source of free energy, it's only a medium for carrying free energy around. It has some advantages and disadvantages compared to batteries, which play the same role.

    Second, as mentioned by others, the key problem with hydrogen is that there's is currently no storage method with good energy/volume and energy/weight ratios. This problem might be solved with some sort of hydride or other technique, but it's not solved yet. Right now batteries make more sense as a mobile way to store free energy from clean sources.

    Michael Weissman UID 197542

    by docmidwest on Sun Apr 24, 2011 at 12:33:00 PM PDT

Subscribe or Donate to support Daily Kos.

Click here for the mobile view of the site