For each technology is calculated how
much cost each producer to generate and
transmit energy through the network. Is included the annualized cost of
capital, lands, operations and maintenance, energy storage to compensate for
deviations of intermittent supply, and transmission. Today the cost of wind
energy, hydro and geothermal are less than seven 7 cents per kilowatt-hour (¢ /
kWh), while marine and solar energy are
higher. But from 2020 onwards are expected to wind, wave and hydroenergy are in the 4 ¢ / kWh or less.
The solar energy, as photovoltaic as well solar thermal concentration energy,
is in the present, relatively expensive, but now is clean and efficient energy and it will be competitive by 2020. A
careful analysis performed by Vasilis Fthenakis Brookhaven from National Laboratory
indicates that within 10 years, the costs and adventages of photovoltaics energy could be
placed about 10 ¢ / kWh, including long-distance transmission and storage cost
compressed air to use at night. Similarly, analysis of the estimates of solar
thermal systems with enough thermal storage to generate electricity 24 hours a
day in the spring, summer and fall, indicating that it could provide
electricity to 10 ¢ / kWh or less on that date.
Transportation in a environment WWS world will be
determined by batteries or fuel cell , so we should compare the economics of these electric
vehicles with vehicle internal combustion engine. Detailed analyzes made by
one of (Delucchi) and Tim Lipman of the
University of California, Berkeley, said that mass production of electric
vehicles with advanced batteries of lithium ion or nickel metal hydride batteries, could have a
cost per mile or km along his life (including battery replacements), comparable
to the gasoline vehicle, when gasoline is sold at more than $ 2 per gallon.
When taking into account the so-called external costs
(the monetary value of damage to human health, the environment and climate) of
fossil fuels in transportation; the WWS technologies are even more competitive.The overall construction cost of a WWS system would be
around $ 100 billion worldwide, in 20 years, not including the transmissions costs. But this money is no
distributed among all governments and consumers. Besides this investment is
repaid through the sale of electricity and energy.And once again we must
remember that if we depend on traditional sources, would suppose going from
11.5 to 16.9 TW, requiring thousands more of these plants, at a cost of about $
10 billion, not to mention tens of billions of dollars more in health,
environment and safety.The new plan and renovator of WWS gives to world a new,
clean and efficient energy instead of an old, dirty, and inefficient energy
system.
In the next article we will continue with Political will for renewable energy
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