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Renewable Energy

This article delves into various renewable energy sources, including Solar, Hydrogen, Wind, Hydroelectric, Geothermal, and Biomass. It discusses their applications, such as heating water and spaces or generating electricity. Each energy type's pros and cons are examined, highlighting important considerations like environmental impact, costs, and sustainability. Additionally, it addresses challenges such as installation expenses, land use, and efficiency levels. Embracing renewable energy is crucial for reducing pollution and promoting sustainable practices in our daily lives.

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Renewable Energy

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  1. Renewable Energy

  2. Solar Energy • Can be used to: • -Heat water • -Heat spaces • -Run electricity (electronics, appliances) • Works from PHOTOVOLTAIC devices (PV)

  3. Pros Cons Sunlight not always constant (weather, location) Requires a large surface to collect sun energy to power a building Installation is expensive • No pollution or CO2 emissions • When on buildings, they have minimal impact on the environment • Renewable • Saves $ • Low maintenance

  4. Hydrogen Energy

  5. Hydrogen energy • -Can be made from stored Hydrogen (not common) • -Can also come from fossil fuels, hydrocarbons, biomass, and water, sunlight, wind, and nuclear sources. • Fuel Cells • http://www.hydrogen.energy.gov/production.html

  6. http://www.autospectator.com/cars/models/2011-honda-fcx-clarity-official-photos-features-specs-pricinghttp://www.autospectator.com/cars/models/2011-honda-fcx-clarity-official-photos-features-specs-pricing

  7. Hydrogen Energy pros cons -More expensive -cars not built to hold fuel cells -may still require fossil fuels -H2 is hard to store or transport -few refilling stations • -no pollution • -no moving parts • -operates at higher efficiencies than normal fuels

  8. WIND ENERGY wind turbines

  9. http://inhabitat.com/bahrain-world-trade-center-turbines-activate/http://inhabitat.com/bahrain-world-trade-center-turbines-activate/

  10. Wind Energy Pros Cons -unreliable and depends on wind patterns, temp, time of year -equipment is expensive -initial expense is high • -sustainable • -Non-polluting • -continual • -low maintenance cost • -proven effective

  11. Hydroelectric Energy Pros cons -changes to river ecosystem -lowers water quality, pollutants back up in lake -effects fish migration -long construction process • -sustainable • -Non-polluting • -controls flooding • -recreational opportunities • -low expenses after initial cost • -lasts longer

  12. Geothermal Energy

  13. What is it? • It’s heat energy from the earth

  14. http://www.eere.energy.gov/topics/geothermal.html

  15. http://www.geni.org/globalenergy/library/renewable-energy-resources/geothermal.shtmlhttp://www.geni.org/globalenergy/library/renewable-energy-resources/geothermal.shtml

  16. Geothermal Energy Pros cons -limited locations -constantly replenishing water -could contaminate groundwater -CO2 and H2S could possibly be released -pricey installation • -sustainable • -mostly non polluting • -energy can be produced non-stop • -minimal expenses AFTER initial costs • -minimal impact on stations that collect the energy

  17. Biomass Fuels

  18. Biomass fuels • http://www.nrel.gov/gis/biomass.html

  19. BIOMASS FUELS PROS cons -uses food crops -increases price of food and livestock -takes more energy to produce then it makes -expensive • -reduces/equals out greenhouse gases (CO2) • -gives an alternate to fossil fuels • -almost everywhere • -reduces waste products

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