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The economics of wind power
A must read article: The economics of wind power: http://ansnuclearcafe.org/2011/01/27/the-economics-of-wind-power/
..."It is often stated that since no one can charge money for the
wind, wind-generated electricity is free. This is not true. A modern
wind turbine, which can generate 2 megawatts of electricity (MWe) when
the wind is blowing, costs about $3.5 million installed. Five hundred of
these turbines installed at a wind farm, to be able to generate 1000
MWe, would cost $1.75 billion. Add in other costs, such as for operation
and maintenance (O&M) and transmission lines, and the total sum
could match the approximate $4 billion required to build a nuclear
plant.
All of these costs need to be recovered from customers or taxpayers. So, the cost of wind-generated electricity is not free.
A typical wind farm would generate electricity about 30 percent of the
time, and not necessarily at times when electricity is needed. There is a
very big difference between intermittent sources of electricity, such
as wind farms, and baseload sources, such as nuclear power. The argument
that nuclear power also has down times is true, but these refueling and
maintenance outages are largely planned during times of low electricity
demand (during spring and fall)." ...."In conclusion, there appears to
be no economic justification for building windmills except when
low-cost alternatives are not available. This is especially true when
windmills are placed on a grid with ample hydro, as there are no
compensating fuel savings in that situation.
There is no free lunch."
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