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What is a Green Job?
A green job is an employment position that focuses on environmentally
responsible products and/or services. The job can be in a green
company or in a company that focuses on reducing the consumption
of natural resources, preventing pollution and promoting
environmental responsibility. Any occupation and industry can offer
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Hydropower
Hydropower, hydraulic power
or water power is
power
that is derived from the
force
or
energy
of moving water, which may be
harnessed for useful purposes.
Another method used a
trompe,
which produces compressed air from
falling water, which could then be
used to power other machinery at a
distance from the water.
Resources in the
United States
There is a common
misconception that
economically
developed nations
have harnessed all
of their available
hydropower
resources. In the
United States,
according to the
US Department of
Energy,
"previous
assessments have
focused on potential
projects having a
capacity of 1 MW and
above". This may
partly explain the
discrepancy. More
recently, in 2004,
an extensive survey
was conducted by the
US-DOE which counted
sources under 1 MW
(mean annual
average), and found
that only 40% of the
total hydropower
potential had been
developed. A total
of 170 GW (mean
annual average)
remains available
for development. Of
this, 34% is within
the operating
envelope of
conventional
turbines, 50% is
within the operating
envelope of
microhydro
technologies
(defined as less
than 100 kW), and
16% is within the
operating envelope
of unconventional
systems.
[2]
In 2005, the US
generated 1012
kilowatt hours
of electricity. The
total undeveloped
hydropower resource
is equivalent to
about one-third of
total US electricity
generation in 2005.
Developed hydropower
accounted for 6.4%
of total US
electricity
generated in 2005.
From Wikipedia, the
free encyclopedia
