Power draw of power supply. 700watt vs 1000 watt, etc
D. Hugh Redelmeier
hugh-pmF8o41NoarQT0dZR+AlfA at public.gmane.org
Sun Jun 27 20:20:40 UTC 2010
| From: Glen Strom <gstrom-R6A+fiHC8nRWk0Htik3J/w at public.gmane.org>
| That reminded me of something I saw in the paper a while back. Some scientists
| agree.
|
| http://www.thestar.com/comment/columnists/article/346692
I imagine (but do not know) that the CO2 cost of manufacturing a CFL
bulb is higher than the CO2 cost of manufacturing the equivalent
number of ordinary incandescent bulbs (3? 5?).
If this is the case, replacing incandescent bulbs in low-use locations
is dumb. Certainly it is echonomically dumb.
Often heat generated from light-bulbs is at the top of a room and
stays there. Not optimal for space-heating.
Almost 100% of electricity used for room lighting heats the room: even
the bit that becomes light turns into heat (but some could exit via a
window).
I certainly don't go around my house changing light bulbs back and
forth between incandescent and CFL when the seasons change. Even if I
were not lazy, the fact is that a used incandescent bulb's filament
may be easily broken in the process.
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