View Single Post
  #70   Report Post  
Old 12-01-2004, 05:06 PM
The Natural Philosopher
 
Posts: n/a
Default Was: Moss/Lichen on roof, now we are into pollution.

Franz Heymann wrote:

"The Natural Philosopher" wrote in message


*shrug* maybe people aren't too bothered about efficiency and still
build cheap gas powered sets.


*more shrug* Maybe 60% is reached in the occasional "flagship" power
station. I think it is exceptional.



Yes, but in the conxtext of hugely expensive and very new technology
fuel cells, one should compare like with like.

ould it coset less to build a 60% efficint CCP or a 40% efficient fuel
cell station?

Remember that the fuel cell produces DC, which needs to be chopped and
flitered to feed the grid. Or a rotary conertor. All this adds to teh
cost as well.


I hope we do see cheap efficient fuel cells, but they have been around
snce the 60's AFAICR, and never caught on. Lithium cells have obnly
really been devleoped in teh tast ten years or so, and have swept the
marjket where their cots/weiht/energy profiles havce made them 'the best
in class'


[snip]

Franz