Renewable%20Energy

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Renewable Energy

• Dra. Sandra Cruz-Pol
• ECE UPRM

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Puerto Rico IP3 Test Bed
Off-the-Grid Radars are small radars that can be
deployed within valleys and rural places with no
electricity or internet connection.
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Outline

1. Renewable Energy in general
2. Solar-electric circuits

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Basic principle of a Generator Once upon
a time Electricity gt magnetism

• In 1820 Oersted discovered that a steady current
  produces a magnetic field while teaching a
  physics class.

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Would magnetism would produce electricity?

• 11 years later, and at the same time, Mike
  Faraday in London and Joe Henry in New York
  discovered that a time-varying magnetic field
  would produce an electric current!

Faradays Law
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How an electric Generator works?

• http//www.wvic.com/how-gen-works.htm

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Many types of Renewable Energy
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Hydroelectric Power

• Converts water energy into electric energy
• Nikola Tesla invented the ac generator, and
  implemented it at the Niagara Falls

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Ocean-kinetic Energy
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Ocean Thermal Energy

• Watch video

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Biofuels

• Hibiscus
• Sugar Cane
• Sea algae
• Many others

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Solar Thermal

• Focuses the heat of the sun on a point, where it
  boils water. Vapor moves turbine that produces
  energy.

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Solar PV

• Solar panels directly convert light into an
  electric current.

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Eco Urbana Renewable Solutions

• Water and Solar-electric system hidden on 2nd
  floor.

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Estimated Cost for a PV system w/o batteries
Elements (6 panels 1050 W) Cost
Panels (785 each, 4.5/W) 4,710
Inverter 1/W (1500 W) 1,500
Installation 1.2/W 1,260
Materials electrics et al. 1.8/W 1,890
TOTAL FIJO 8.5/W 9,360
9360 / 1050 W 8.91 /W Credits Dr. Agustín
Irizarry-UPRM
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Wind Energy Wind turbines convert wind energy to
electric energy
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if the wind blows.
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Small windmill on the East of PR
Bornay Inclin 6000 W (10,0002,0006,0005,00
02,000)25,000 209/mo - 8, 20 yrs, 10m
height
kWh/day /day 0.28 /kWh kWh/mo. /mo. 0.28 /kWh kWh/yr /yr 0.28 /kWh Electricity value 5, 20 años
48.8 13.7 1464 411 3800 4,932 62,276
produces 202/mo. Dr. Agustín Irizarry,
UPR-Mayagüez
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Whats going on around the?

• U.S. larger producer of wind energy
• Germany - larger producer of solar energy
• Spain leader in solar/wind for over 20 years
• Hawaii in 2050, 70 renewable!
• Japan leader in solar energy
• Colombia 75 hydroelectric!
• Norway, Iceland, Brazil
• Finland Spending 6 billion in 2006 to build
  underground nuclear waste deposit from past 10
  years. Whats the total cost?

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