Where the wind blows (MIT)
_With the world’s energy needs growing rapidly, can zero-carbon energy options
be scaled up enough to make a significant difference? How much of a dent can
these alternatives make in the world’s total energy usage over the next half-
century? As the MIT Energy Initiative approaches its fifth anniversary next
month, this five-part series takes a broad view of the likely scalable energy
candidates._
Of all the zero-carbon energy sources available, wind power is the only one
that’s truly cost-competitive today: A 2006 report by the U.S. Energy
Information Administration put the total cost for wind-produced electricity at
an average of $55.80 per megawatt-hour, compared to $53.10 for coal, $52.50
for natural gas and $59.30 for nuclear power.
As a result, wind turbines are being deployed rapidly in many parts of the
United States and around the world. And because of wind’s proven record and
its immediate and widespread availability, it’s an energy source that’s seen
as having the potential to grow very rapidly.
“Wind is probably one of the most significant renewable energy sources, simply
because the technology is mature,” says Paul Sclavounos, an MIT professor of
mechanical engineering and naval architecture. “There is no technological
risk.”
Globally, …
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