Well, more or less EE
Yee ha !


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Dean Wheelr said -

A recent blurb in my most recent issue of Chemical Engineering Progress (I
can think of other uses for all that compressed air in the mine!):


Researchers at Sandia National Laboratories
(Albuquerque, NM) are working with
Haddington Ventures (Houston, TX) and its
subsidiary Norton Energy Storage LLC to
determine the feasibility of using a 2,200-ft-deep
inactive mine near Norton, OH, as the
storage vessel for a compressed-air energy-storage
power plant. "The intent is to cycle air
pressure into the mine using compressors dur-ing
off-peak electrical power times like
evenings and weekends to increase air pressure
in the mine," explains Sandia researcher Steve
Bauer. "When electricity demand peaks during
the day, air pressure will be bled off through
modified combustion turbines to generate elec-tricity.
The energy is stored as pressure, but the
mine must hold air to store the pressure."
Working pressures in the mine will range
between about 800 and 1,600 psi.
Haddington and Norton Energy plan to
have the plant operating in two years. It will be
brought on-line in increments of 300 MW as
units are complete. Utlimately up to 2,700
MW will be built, which will be enough gener-ating
capacity for about one million homes, the
firm points out.
Two other compressed-air energy-storage
plants exist - one in McIntosh, AL, and
anothert in Germany, both in caverns created
in salt deposits. The Norton plant will be the
first in a limestone mine, the company says.

from http://www.cepmagazine.org/pdf/080118.pdf

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