thought on fuel cells

[boats4future]

1. Is it practical?
As far as I know, there is a propane-driven fuel cell on the market. I don´t know where to buy, however. Hydrogen fuel cells (very very efective, up to 80%) are not on the market yet but with big car companies pushing for that it might be soon.

2. Some pros and cons
Pros:
It is quiet, as loud as a pump.

It is more efficient then a combustion engine

It creates direct curent (for many appliccations this is desirable for example charging batteries)

It is small ! (no bigger than two batteries)

Their are no moving parts !

Cons:
The most efficient fuel (hydrogen) does not have a good distribution system.

With limited production, price is not as low as it could be.

That about sums up what I know. Check howstuffworks.com for more info and links.

[boats4future]

Since you just creating powor you run electric motores to power your prop. this means you can put your fuel cell any where and gust run a cabel to the moters, further more you can run to props of one fuel cell stack. and you dont need a altenator or inveter.