| Con Solar
Energy by Dani Farrell ‘06
Solar Energy (radiant energy from the sun) is a mixed blessing.
Many people are harnessing Solar Energy and converting into Solar
Power electricity for their homes, boats, farms, and businesses.
However many people especially those who live in southern or tropical
climates benefit from solar power while they suffer from the radiant
heat that is generated from Solar Energy.
Increased air-conditioning usage, increased refrigeration and freezer
compressor running times are all negative effects of Solar energy
being converted to heat.
INSULADD products help to reduce solar induced heat gain through
the roofs and walls of buildings during summer months.
INSULADD products also help to reduce heat loss from buildings during
winter months.
The direct applications of solar thermal energy are generally more
costly
than conventional alternatives.12
There are high initial costs to build and install solar collectors.
In order for the potential of solar energy to be used most effectively,
large areas of land for solar collectors are required.
Because solar collectors must be very large, they use high volumes
of
nonrenewable materials in their construction, resulting in high
energy
costs.
Solar energy is unreliable because sunshine can be intermittent.
Solar energy is diffuse and of low quality.
Solar energy is not storable in its primary form.
Solar collectors have low efficiency (5-15 percent) in extracting
energy
from the sun.
The effects of weather are often unpredictable.
Widespread use of rooftop flat-plate collectors would require large
amounts of steel, copper, and glass compared to centralized power
plants.
Leaks of collector fluids used in solar space and water heating
can damage
buildings and contaminate buildings' water supply. Toxic substances
used
in the manufacture of photovoltaic cells are occupational hazards,
can
contaminate water in manufacturing areas, and can be released from
overheated or burning cells.
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