national technology

national technology
Would it be possible to use Hydrogen Cell Technology to generate power for the national grid?

If so why are the powers to be, seem not to be considering this re-newable power source

Hydrogen is a means to store energy. Hydrogen is not a source of energy.

With respect to hydrogen cell technology, it is extraordinarily expensive to produce a hydrogen cell, and you must have extraordinarily clean hydrogen.

Hydrogen cells are poisoned by small amounts of contaminants. Your hydrogen cell will quickly become the world’s most expensive paperweight if you do not have very clean hydrogen gas.

One of the reasons hydrogen cells are not used in more automobiles is the cost. A hydrogen cell for even a small economy car costs over $100,000. A hydrogen cell for a full size car will cost you between $200,000 and $300,000.

For a power grid the cost of hydrogen cells is prohibitive. There are much better more cost effective ways of converting hydrogen to electricity than using a fuel cell.

The most cost effective renewable power source for generating hydrogen is windpower. Windpower is not always available when you want it, so storage of the energy produced by windpower is one of the challenges of using windpower as a power source.

Using hydrogen as a means of storing energy peoduced by wind power until you need it is one of the possibilities that has been considered.

Hydrogen can be generated electrolytically from water with an efficiency of approximately 70%. When you convert it back to electricity the efficiency generally is between 25% and 50%

You do have some very significant energy losses when you use hydrogen as a means of storing energy. You only get back approximately 17% to 35% at best the amount of energy that you started with.

These are some of the challenges that you face when you try to use hydrogen as a means to store electrical energy.

Pacific Northwest National Laboratory: Advancing Transformational Science and Technology


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