Re: ATM Fuel cells in the future?

[AMaroney@sptimes.com]

> Fuel cells are typically used at a voltage that 
> makes them 60-70% efficient at converting 
> chemical energy to electrical energy, with the rest 
> lost as waste heat... 

From a observing standpoint 12v DC at about 5AH should do it - along with a regular deep cell battery.  The battery could handle any additional loads at night and recharge it during the day.    I can go indefinitely now with a 3AH charger.   If the waste heat could be used for dew heaters that would save quite a bit of battery power.  (Hey, let a guy dream).

Get it the size of a small auto battery and in the $500 range and I'll go for it, as long as the consumables are reasonable.