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Al
Posted: Wed Dec 26, 2007 7:19 am
 
I am a metallurgist trying to get a handle on energy conservation. So
please excuse me for asking some basic questions.

1. I read that electrical utilities make a major contribution to
energy loss. What percent of this loss is generation and what percent
transmission (line loss)?

2. If power lines went back to all copper, what percent of line-loss
energy would be saved?

3. If all light bulbs were low-energy, by what percent would energy
usage decrease?

Thanks for your help.

Al Rosenfield
Alternative-energy Specialist
League of Women Voters of Ohio
Columbus OH
 
BobG
Posted: Wed Dec 26, 2007 7:35 am
 
On Dec 26, 12:19�pm, Al <pega...@sbcglobal.net> wrote:
[quote:0a988b51f0]I am a metallurgist trying to get a handle on energy conservation.

1. I read that electrical utilities make a major contribution to
energy loss. What percent of this loss is generation and what percent
transmission (line loss)?

2. If power lines went back to all copper, what percent of line-loss
energy would be saved?

3. If all light bulbs were low-energy, by what percent would energy
usage decrease?
================================1)Transmission line loss is by design. Less loss takes fatter wire.[/quote:0a988b51f0]
10% is a figure I've heard. It gets worse in the summer under high
current conditions.
2)Negligible. Cheaper but fatter wire with less conductivity is
equivalent.
3)If all 60W bulbs converted to 15W CF bulds, 75% would be saved. But
a lot of bulbs are already sodium or flourescent. You count thiose in
the set of 'all light bulbs'?
 
Christian Helgev
Posted: Wed Dec 26, 2007 2:39 pm
 
"BobG" <bobgardner@aol.com> ha scritto nel messaggio
news:10cd5452-1ead-4e22-a625-99fac336cef2@i12g2000prf.googlegroups.com...
On Dec 26, 12:19?pm, Al <pega...@sbcglobal.net> wrote:
[quote:9f7036ca61]I am a metallurgist trying to get a handle on energy conservation.

1. I read that electrical utilities make a major contribution to
energy loss. What percent of this loss is generation and what percent
transmission (line loss)?

2. If power lines went back to all copper, what percent of line-loss
energy would be saved?

3. If all light bulbs were low-energy, by what percent would energy
usage decrease?
=================================
1)Transmission line loss is by design. Less loss takes fatter wire.
10% is a figure I've heard.
[/quote:9f7036ca61]

In Us is about 8% , in many more densely polulated European countries
decrease to 6%
 
zzbunker@netscape.net
Posted: Thu Dec 27, 2007 6:56 am
 
On Dec 27, 5:08 am, Mike Swift <tomsw...@cruzio.com> wrote:
[quote:22c0b403dd]In article
562ddc6b-3966-40cf-97c5-b56bdbf56...@n20g2000hsh.googlegroups.com>,





 Al <pega...@sbcglobal.net> wrote:
I am a metallurgist trying to get a handle on energy conservation. So
please excuse me for asking some basic questions.

1. I read that electrical utilities make a major contribution to
energy loss. What percent of this loss is generation and what percent
transmission (line loss)?

2. If power lines went back to all copper, what percent of line-loss
energy would be saved?

3. If all light bulbs were low-energy, by what percent would energy
usage decrease?

Thanks for your help.

Al Rosenfield
Alternative-energy Specialist
League of Women Voters of Ohio
Columbus OH

1.  Electrical utilities, at least in the U.S., strive for the lowest
cost per kWh. They could be more efficient at  $1.00 per kWh, but then
only the rich and government would have it. Some rough examples for
power delivered, "across the fence", that is energy into the power plant
to that exiting would be 15% for solar up to about 60% for combined
cycle gas. At the present time for new systems that can be implemented
in volume nuclear is about $0.038/kWh to solar voltaic at $0.01-0.20
depending on the particulars.
[/quote:22c0b403dd]
Well, the moron US Grid kings are their own worst enemy.
Since the efficiency of their plants is strickly a governent
accounting issue.
And their compulsion to equate everything in the entire
universe to $/KWH is what drives most people with brains
to invent thing like Solar Power, AI, Robots, Rockets, and
unemployment lines for the idiots.





[quote:22c0b403dd]2. As others have said transmission losses in the U.S. vary from 6% to
10%. This is larger than England, and some other countries, but there
are few 1000 mile long transmission lines in England.:)

3. At the present time I do not know what percentage of lamps in homes
are incandescent, but the total energy in homes that goes to lighting is
about 12%. Many people have switched to CF lamps already, but some have
not. Commercial lighting is about 25% of all commercial power used, but
almost none is incandescent.

--
Mike

Remember companies do not pay taxes.  They only collect
them from their customers for payment to the government.- Hide quoted text -

- Show quoted text -[/quote:22c0b403dd]
 
 
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