Comparison of Nonrenewable Energy Fuels

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Presentation transcript:

Comparison of Nonrenewable Energy Fuels Energy Type Advantages Disadvantages Pollutant and Greenhouse Gas Emission Electricity (cents/kWh) Energy return on energy investment Oil/ Gasoline   Coal Natural Gas Nuclear Energy

Oil/Gasoline Advantages Ideal for mobile combustion Quick ignition/turn off capability Cleaner burning than coal

Oil/Gasoline Disadvantages Significant refining required Potential for oil spill Will probably be much less available in next 40 years

Oil/Gasoline Pollutant and greenhouse gas emissions 2nd highest emitter of CO2 among fossil fuels Hydrogen sulfide

Oil/Gasoline Electricity (cents/kWh) Relatively little electricity generated from oil

Oil/Gasoline Energy return on energy investment 4.0 (gasoline) 5.7 (diesel)

Coal Advantages Resources will last at least 200 years No refining necessary Economic backbone of some towns

Coal Disadvantages Risk human lives in mining practices Coal power plants are slow to reach full operating capacity Large contributer to acid rain

Coal Pollutant and greenhouse gas emissions Highest emitter to CO2 among energy sources Trace of toxic materials (mercury) Sulfur

Coal Electricity (cents/kWh) 5 cents/kWh

Coal Energy return on energy investment 14

Natural Gas Advantages Power plants with efficiencies of up to 60% Efficient for cooking, home heating, etc. Few impurities

Natural Gas Disadvantages Risk of leaks/explosions 25 times more effective as a greenhouse gas than CO2 Transported through pipeline

Natural Gas Pollutant and greenhouse gas emissions Methane Hydrogen Sulfide

Natural Gas Electricity (cents/kWh) 8-10 cents/kWh

Natural Gas Energy return on energy investment 8

Nuclear Energy Advantages Emits no CO2 once plant is operational Offers independence from imported oil A lot of energy supply

Nuclear Energy Disadvantages Unpopular Plants are expensive (legal challenges) Meltdown could be catastrophic Possible target for terrorist attacks

Nuclear Energy Pollutant and greenhouse gas emissions Radioactive waste No long-term plan to manage radioactive waste No air pollution during production

Nuclear Energy Electricity (cents/kWh) 12-15 cents/kWh

Nuclear Energy Energy return on energy investment 8

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