INCREASE IN USE OF ELECTRICITY
JAI OH SURYA BHAGAVAN!!
DRAWBACKS OF SOLAR PROJECT:
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§Why
is solar energy not being used on a large
scale? Is it mainly an economic problem?
§The
applications of solar energy include
powering earth satellites (successful),
powering emergency telephones along highways
(successful), heating water with rooftop
installations (successful but at best
marginally cost-effective where energy is
cheap), electric power where grid energy is
not available (apparently not cost-effective
at present compared to diesel generators)
and central station electric generation (not
presently economical).
§It's
now high time, and yet solar central
stations are still not economical.
§Central station generation is the application that needs to be compared to present generation methods - burning coal, oil or natural gas or nuclear energy.
§There
are many schemes for generating electricity
from the sun. These include Photovoltaic
cells. These are an attractive field of
research, and have gradually been made more
efficient and less costly.
§Power
towers. Mirrors focus sunlight on a boiler,
which generates steam and then electricity.
§However,
solar energy would be expensive enough to
put nations that decided to depend on it
alone at a serious economic disadvantage
compared to nations that were not
constrained to rely on it.
§Maintenance
cost. One person, experienced in maintaining
complex systems gave me an estimate of one
percent a month, e.g. a system costing $40K
costs $400 per month to maintain which is
obviously too much to afford to common
people.
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