Alternative Energy


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A presentation about alternative energy resources

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Alternative Energy

  1. 1. Or any energy source alternative to the fossil fuels we rely on today Presentation by Madeline Osman
  2. 2. *Local jobs created *Our energy supply becomes more diversified *The United States economy becomes more secure *Less air pollution *Energy costs are reduced from competing energy providers Solutions gained by alternative fuel usage *As population grows, so does energy usage *Fossil fuels are nonrenewable and fast declining *The United States relies heavily on fuel importation *Fossil fuel usage is linked to increased global warming *Energy costs a lot to produce from its raw form to the form we use
  3. 3. Global warming can be prevented with alternative energy use. But in the meantime, here are some problems it causes: Increasingly violent weather Rising sea levels Higher average global temperature
  4. 4. Hydro power Wind Power Bioenergy
  5. 5. Advantages The PV cell converts light energy to electrical energy by a process known as the photovoltaic effect. Sunlight hits the PV cell and the light energy is transformed into A raw electrical signal. Disadvantages *Renewable resource *No water or air pollution, no chemical reaction *Very efficient for heating and lighting *Energy can’t be produced if the sun isn’t shining or is covered up *Expensive Though the initial start up costs are steep, as technology improves, solar energy has the potential to be cheaper than traditional electricity within the decade
  6. 6. Advantages Hydropower is created with flowing water to create energy. Through a process of releasing water from a reservoir into a turbine and spinning it, a generator is activated to produce energy. Typically, this is done using a dam. Disadvantages *Energy can be constantly produced *No pollution *Renewable *Expensive *Necessity of consistent, powerful water supplyNorway gets all of its Electrical production from Hydropower.
  7. 7. Advantages Wind turbines are powered by the wind which propels the blades and in turn, generates electricity. The wind needs to be reaching speeds of at least 10 MPH to be fast and powerful enough for electricity to be powered. Disadvantages *Produces no pollution *Renewable resource *Turbines can be built off shore or on shared land *Dependence on strong wind force *Affects visual aesthetic Turbines are essentially Maintenance free.
  8. 8. Advantages Geothermal heat is the heat within the Earth. This heat is available by a process of drilling until hot steam or water is reached in a permeable reservoir, then is transferred through a pipeline to the surface where it is then converted into electricity. The cooled by product is pumped back into the reservoir and the process is repeated. Disadvantages If people could utilize all the heat stored within the Earth, it would provide a global energy supply for the next 20 billion years *Produces no harmful by-products *Once the system is built, its self-sufficient *Power plants are small and don’t disrupt natural environment *Incorrectly done can cause pollutants *Sites can run out of steam
  9. 9. Advantages Fuel is derived from Biomass: recently living organisms or their metabolic byproducts Disadvantages Though the combustion of biomass puts out carbon, it doesn’t increase the amount already in the atmosphere (because it was recently contained in plants) *Renewable *Don’t need to rely on other countries to produce *Can be converted directly into liquid fuel *Pollution as byproduct *Costs a lot of energy to produce
  10. 10. Self-sufficient after initial implementation Our current proposals for alternative energy may not solve all of our energy problems, but they’re a step in the right direction…
  11. 11.  Integration of Green and Renewable Energy in Electric Power Systems  Alternative Energy for Dummies  Generating Electricity in a Carbon-Constrained World  All pictures from: