"Solar is highly
compatible with the values and desires of the environmentally-conscious
citizen."
A government study from the Department of Energy (DoE)
& National
Renewable Energy Laboratory (NREL) concluded
the following about Solar Energy:
"Solar electricity is clearly
a wise energy investment with great environmental benefits!"
The
Major Objectives of Sustainable Energies
The conservation of fossil fuels,
the reduction of pollutants, reduction of waste, and higher
efficiency usage of electricity
are the main environmental objectives to which
Solar achieves each of these
ends.
The Conservation of Fossil Fuels
This is a simple, yet important effect of using Solar Energy. As more and more individuals, corporations, and
government use alternative energies such as solar, we conserve
fossil fuels and other natural resources that are quickly
diminishing. With a rapidly expanding world economy, and
the strong growth in highly populated countries - the demand
for energy is increasing at an alarming rate. This makes
conserving our resources more important than ever.
In addition to the deterioration of land, air and water - the
rapid depletion of natural resources “further compromises
the ability of future generations to meet
their own needs”. The Reduction of Pollutants
Electricity production in Colorado
is dominated by fossil fuels—98%
coal, 2% petroleum and other like fuels. Overall energy production
(heat, electricity, etc.) is also dominated by these fuels
(51%
coal, 16% natural gas and 3% petroleum). The resulting
CO2 emissions come from coal (81%), gas (15%),
and from petroleum (4%).
There are major environmental impacts attributed to electricity
generation from these non-renewable fuels. Emissions of
pollutants into the atmosphere (particulates, Sulphur
Dioxide (SOx),
Nitrogen Oxide (NOx), Carbon Dioxide (CO2),
and others) all have a grave impact on public health, water
and crops. These negative externalities also impact many
delicate ecosystems such as forests and fisheries.
The Reduction of Waste
Electricity produced from Coal (the primary source of electricity)
results in a great deal of waste during the process, such
as:
- Mining: Dust from surface mining, Drainage Water
- Cleaning and Drying: Liquid and Solid Waste, Dust and Coal
Fines (30 tons)
- Transportation: Spillage, Dust and Fines
- Storage: Liquid Drainage, Dust and Fines
- Power Plant: Liquid and Solid Waste (5000 tons of liquid; 360,000
tons of solid ash), Emissions (150,000 tons of mainly SOx, NOx, CO2, and particulates)
- Water, Land, Energy, and Heat are also wasted over
the entire process of converting coal to electricity
Nearly every type of energy production from non-renewable
sources produce wastes which have a negative impact on
the environment.
Even nuclear energy, while burning relatively clean, presents
serious
problems with the safe storage of radioactive waste and
the possibility of widespread nuclear fallout from a reactor
meltdown.
Higher Efficiency Usage of Electricity
The efficiency of fossil fuel electricity generation is
stunningly low. Given that the amount of the fuel (coal, petroleum,
natural gas, etc.) is growing scarce, this lack of efficiency
is all the more important.
When you burn these fossil fuels
to create electricity, we only convert about 35% of the
energy produced into electricity, the other 65% is lost mostly
in
heat. It is now wonder why these fuels are quickly disappearing. While the efficiency is low for the individual solar cells
themselves, the Solar Energy system is quite efficient.
That doesn't
much matter however, since the fuel for Solar Energy (the
Sun) is virtually limitless and available worldwide.
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Over 25 Years, a typical 3kW Solar
Energy System will offset the following:
180,000 lbs of CO2 (greenhouse
gas)
600 lbs of NOx (smog)
500 lbs of SO2 (acid rain)
300,000 Miles driven in an average car
(12,000 Miles a Year)
It's like planting 1.5 acres of Trees
It will prevent over 90,000 lbs of Coal from
being burned!
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