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Re: Denmark and wind generation


I did use the wrong figure--accidentally used electrical production number
rather than electrical use--Denmark must export considerable electricity.

From the 2001 Encyclopedia Annual (massaged to get all units in kWh):


Total Energy Use: 254,444 x 10^6 kWh

Total Electrical Production: 54,981 x 10^6 kWh

Total Electrical Use: 39,582 x 10^5 kWh

Fossil fuel use for electricity: 43,325 x 10^6 kWh

I take 2/3 of the 43,325 from the total: 254,444-.67*43,325 = 225,416 to
roughly account for the thermal efficiency problem. Then 39582/225416 would
give 17.6% electrical. Sorry about the mistake, but my main point is still
that replacing _electrical_ generation with renewables only addresses a very
small part of the overall problem of fossil fuel dependence|global warming
concerns|finite fuel supplies. All discussions of renewables for the future
need to talk about the TOTAL energy use.


Richard W. Tarara
Associate Professor of Physics
Department of Chemistry & Physics
Saint Mary's College
Notre Dame, IN 46556

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----- Original Message -----
From: "Daniel Schroeder" <DSCHROEDER@CC.WEBER.EDU>
To: <>
Sent: Thursday, June 14, 2001 6:40 PM
Subject: Re: Denmark and wind generation

Just one more note on this to emphasize what I keep harping about--total
energy versus electrical energy. Looks like Denmark is a heavily
country--about 23%, but that still means that at their current 13% use of
wind generation for electricity, wind only provides 3% of Denmark's total
energy needs. Even at the 50% goal, it will be less than 12% of the
By the way, does anyone know how their planned system accounts for a day
with little or no wind--or is that not a likelihood due to the locations
the generators?


Rick, are you saying that electricity *consumption* is 23% of Denmark's
total energy consumption, or are you saying that the fuel used to
generate electricity is 23% of Denmark's energy consumption? I'd
appreciate it if you'd clarify this and then recalculate your percentages
using the same methods as EIA, in order to compare renewables more
fairly to thermal generation of electricity.