"Sam Goldwasser" wrote in message
...
"Harvey" writes:

"Sam Goldwasser" wrote in message
...
"Harvey" writes:

[..]]

Well, maybe.

But consider: Replacing how many 100 W incandescent lamps used 6 hours
a day with 25 W equivalent brightness compact fluorescents will it
take
to same more energy than used by all those appliances in the house
with
standby modes?

10? 5? 2? 1?


Ah, but how much extra energy went into the _manufacturing_ of these
'energy
efficient lights compared to incandescent lamps? I've not seen any
figures
and I wouldn't really like to guess, but its got to be more; probably by
a
factor or two or three...

Yes, but how does it compare with the electrical energy cost over the life
of the
lamp (100 kW-h for a 100 W 1000 hour incandescent lamp)?


Really depends, if you buy the garbage LOA CFL's and they die after 3 weeks
then it's not a very good investment. My entire house has been CFL for
several years now aside from the diningroom chandelier and since I did the
swap my electric bill dropped noticeably. For lights like porchlights and
others that are on for extended periods of time it's silly to use an archaic
incandescent lamp.