The zero energy solution

I found this article about a solution when excess solar energy is used to create hydrogen gas.
A schedule to show the working principle:

A barn-size array of solar panels collects energy from the sun and converts it to electricity. An electrolyzer runs any excess electricity through water to produce hydrogen gas, which can then be stored for later use. The gas can fuel an experimental hydrogen car. Or it can be converted back to electricity whenever extra power is needed to light or heat the family home.

I believe there are possibilities with techologies like this one. Do you guys agree?

You can read the entire article here:


  1. 11/04/2013 at 14:51

    Isn’t the efficiency of converting electricity to hydrogen gas too low for that? Because now excess electricity is also stored and used later as electricity. But of coarse, after reading your other posts, it would be better for driving and it would also be a solution to the problem of refuel stations with hydrogen gas if you can just refuel at home with the excess of green electricity.

    • 12/04/2013 at 11:19

      What you say is possible. But I think it is good to to search for alternatives like this one.

  2. 20/04/2013 at 14:02

    How is it stored now? In pumping stations? I’m not sure that is more efficient.

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