Energy

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Energy
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• Alternative
• Renewable
• Sustainable

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• A. An Electricity Primer
• 2 Types
• Static
• A non-moving e- gradient is produced.
• A discharge relieves the gradient.
• Current

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• 2. Current electricity a constant flow of
  electrons.
• Two types of Current Electricity
• a. Direct Current (DC)
• b. Alternating Current (AC)

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• a. Direct Current (DC)
• Battery bucket full of chemicals that causes
  electrons to move.
• Cathode gains electrons
• Anode loses electrons
• Electrolyte chemical
• that allows the
• electrons to move

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• b. Alternating Current
• Voltage number of electrons (volts)
• Current pressure of the electrons (amps)
• Current

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• World Electric Generation (IEA 2009)

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• US Electric Generation (EPA 2005)

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• A. Wind

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B. Solar

• 1. Direct Solar vs
• Uses solar energy for heating or electricity
  without a naturally occurring conversion.
• Ex passive and active solar

• Indirect Solar
• Solar converted to another form of energy in
  nature.
• Ex fossil fuels
• wind
• biomass
• hydroelectric

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• 2. Passive Solar Heat vs
• Construction designs for collecting heat. No
  fans or collection devises are used.
• http//www.susdesign.com/sunangle/

• Active Solar Heat
• Fans, pumps, or collection devises are used.

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• 3. Solar Thermal Commercial Generators
• 10-15/kWh
• Oil filled parabolic collectors concentrate heat.
  An exchanger creates steam that in-turn moves a
  turbine.
• Adv/Dis

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• 4. Photovoltaic
• 15-25 / kWh
• Based on the diode properties of silicon.
• Million Solar Roof Initiative
• DOE
• Solar America Initiative

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• http//www.slate.com/blogs/future_tense/2013/02/07
  /fox_news_expert_on_solar_energy_germany_gets_a_lo
  t_more_sun_than_we_do_video.html?fb_refsm_fb_shar
  e_blogpost

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C. Biomass
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• C. Biomass
• 1. Traditional Biomass

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• 2. New Fangled Biomass
• a. Biogas
• b. Bioliquid
• adv/dis
• c.Fuel Crops/Crop Residue
• d. Biomass to Electricity
• adv/dis

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• D. Hydroelectric
• 1. Types
• a. Large scale
• b. Small scale
• c. Pumped-Storage System
• 2. adv/dis

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• E. Waves And Tides
• 1. Differences!
• 2. Osprey

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• 3. Ocean Thermal Energy Conversion

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• 4. Tides

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• F. Geothermal
• 1. Geothermal Reservoirs
• The Geysers
• adv/dis
• 2. Geothermal Heat Pumps

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• G. Hydrogen
• 1. Electrolysis

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• 2. Combustion of Hydrogen

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• 3. Hydrogen Fuel Cells