Re: OT: interesting global warming quote found elsewhwere

Don Klipstein wrote:
In article <slrng9sp93.5md.don@xxxxxxxxxxxxxx>, I, Don Klipstein wrote:
In article <yF1nk.591$xv.272@trnddc02>, James Arthur wrote:

<edit for space>

There weren't as many of them, but they were tremendously energy
inefficient. Third worlders' lighting today is like <1% efficient,
and lighting accounts for 1/3rd of U.S. electrical usage.

What was the carbon pulse to the atmosphere like
back then?, and maybe they saved us from universal ice?
As it turns out, lighting accounts for a lot less than 1/3 of electric energy consumption in the USA. I have less tracking of national total here than of a strong memory for a residential figure that lighting accounts for about 9% of USA residential electricity consumption.
I suspect that the figure for percentage of USA's residential electric bills for lighting will be much higher than 9%, since homes in areas with cheaper hydropower will have more electric heating.

It does appear to me that around 70% of USA electricity consumption is for motors in refrigeration and climate control devices. Sorry, I will need to do some work to get a more refined and citable figure.

I now see that my 70% figure just for motors used for refrigeration and climate control needs a correction. Now it appears to me that refrigeration, climate control including resistive heating, and water heaters and clothes dryers add up to 61.5% of USA residential electricity consumption. Lighting accounts for 8.8%.

http://www.eia.doe.gov/neic/brochure/electricity/electricity.html

- Don Klipstein (don@xxxxxxxxx)

Thanks for both your contributions Don. The latter is RESIDENTIAL,
though. Commercial use is much higher.

http://www.eia.doe.gov/emeu/cbecs/cbecs2f.html:

"Lighting Energy: Energy used for lighting in commercial
buildings is on the order of 1 quadrillion Btu, 40 to 50
percent of commercial electricity use for 1986."


I got my 1/3rd figure parroting media reports, but I hadn't checked.
Shame on me.

This 2002 report says:
http://www.eia.doe.gov/kids/energyfacts/saving/efficiency/savingenergy.html

"As a nation, we spend about one-quarter of our
electricity on lighting, at a cost of more than
$37 billion annually."


Cheers,
James Arthur
.

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