Alternative Energy Uses and

murmerlastΠολεοδομικά Έργα

16 Νοε 2013 (πριν από 3 χρόνια και 11 μήνες)

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Alternative Energy Uses and
Sources

Advantages and Disadvantages of
Alternative Sources of Energy

Energy Alternatives Considered


Solar


Geothermal


Wind


Biomass


Natural gas for transportation


Advantages of Solar Power


Renewable resource


Reduce use of fossil fuels


Stimulates economic growth in alternative
energy source


Creates jobs in manufacturing and installation

Advantages of Geothermal


Underused resource


Clean


Little or no emissions


Reliable


Average system availability is 95%


Domestic resource

Disadvantages of Geothermal


Requires deep wells in most areas


Requires multiple wells in the same area


Doesn’t work well in non
-
porous rock


Dissolved minerals are corrosive on
equipment



Pros

Cons


High domestic capacity


Cleaner burning than oil


Most imports come from
Canada



Non
-
renewable resource


Demand exceeds current
production


Requires new infrastructure
for refueling stations

Pros and Cons of Natural Gas for
Transportation

Advantages of Offshore Wind Farms


Low environmental impact


No hazardous wastes


Reduced dependence on fossil fuel


Coastline wind is more reliable


Does not require access roads


Does not require land space

Disadvantages of Wind Energy


Wind does not blow at a constant speed


Capacity factor is low compared to fossil fuel
or nuclear power


Electromagnetic fields affect navigational
abilities of sea life


Disrupts bird and marine air traffic


Wind is area specific

Biomass Energy


Benefits


Can be converted directly to liquid fuels


Ethanol


Biofuels


Used to enhance power production


Renewable resource


Supports agricultural and forest product industries


Domestic resource