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Articles about Solar Energy - Los Angeles Times - 0 views

articles.latimes.com/...solar-energy cost sustainable current solar
shared by kirkpatrickcon99 on 23 Sep 13 - No Cached
  • with $25 million set aside for low-income customers. An additional $100.8 million will be used to swap out water heaters powered by electricity.
  • NATIONALHawaii sets 'breakthrough' framework for new solar power
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Fossils Fuels vs. Renewable Energy | Ecology Global Network - 1 views

www.ecology.com/...-vs-renewable-energy-resources renewable fossil fuels
shared by mannixjul00 on 24 Sep 13 - No Cached
  • Burning fossil fuels creates carbon dioxide, the number one greenhouse gas contributing to global warming. Combustion of these fossil fuels is considered to be the largest contributing factor to the release of greenhouse gases into the atmosphere. In the 20th century, the average temperature of Earth rose 1 degree Fahrenheit (1°F). This was a period that saw the most prolific population growth and industrial development
  • Some estimates say our fossil fuel reserves will be depleted within 50 years, while others say it will be 100-120 years.
  • Sun, wind and water are perfect energy sources…depending on where you are. They are non-polluting, renewable and efficient
  • ...3 more annotations...
  • The object is to capture and harness their mechanical power and convert it to electricity in the most effective and productive manner possible.
  • Another form of hydroelectric energy is tidal power. In use since the early 1900s, tidal power stations collect the energy created by the rise and fall of the tides to convert to electricity.
    • mannixjul00
      mannixjul00 on 24 Sep 13
       
      history maybe?
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Solar Energy Diagram | Complete Diagrams on Solar Energy Facts - 1 views

solarenergyfactsblog.com/solar-energy-diagram solar energy diagram picture
shared by kirkpatrickcon99 on 24 Sep 13 - No Cached
  • Then we’ll present diagrams and discuss photovoltaic solar, solar hot water, and concentrated solar power. The easiest way to think about these is: am I using solar energy to heat water (solar hot water and CSP) or am I converting sunlight directly into electricity (photovoltaic cells)? Solar Energy Diagram #1 – Insolation
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HowStuffWorks "Photovolatic Cells: Converting Photons to Electrons" - 0 views

science.howstuffworks.com/...solar-cell1.htm convert solar
shared by dylan purner on 24 Sep 13 - No Cached
  • Photovoltaic cells are made of special materials called semiconductors such as silicon, which is currently used most commonly. Basically, when light strikes the cell, a certain portion of it is absorbed within the semiconductor material. This means that the energy of the absorbed light is transferred to the semiconductor. The energy knocks electrons loose, allowing them to flow freely.
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Wind Turbine History - 2 views

centurionenergy.net/wind-turbine-history wind history
shared by mattisonmar00 on 24 Sep 13 - No Cached
  • Wind machines were used in Persia as early as 200 B.C
  • The first windmill for electricity production in the United States was built in Cleveland, Ohio by Charles F Brush in 1888, and in 1908 there were 72 wind-driven electric generators from 5 kW to 25 kW.
  • The first utility grid-connected wind turbine operated in the UK was built by the John Brown Company in 1954
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geothermal CO2 emissions - 0 views

www.energyadvocate.com/air_geo.htm geothermal co2
shared by wooddan99 on 25 Sep 13 - No Cached
  • Somewhat surprisingly, the hot air that carries the heat from the earth at geothermal sites also contains carbon dioxide, CO2, the Greenhouse Gas that sends anti-technologists into a frenzy.  The suite of 20 geothermal sites from which Southern California Electric is obligated to buy electricity produces 730 tonnes of CO2 for every gigawatt-hour (GWh) of electricity produced.  Across the spectrum of all natural-gas power plants in the US, the average CO2 production is 519 tonnes per GWh.  That is, the geothermal power plants, which burn no fossil fuels whatsoever, produce 41% more CO2 than the run-of-the-mill natural gas power plant for the same amount of electrical energy produced.
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Ethanol: What Is It? - Ethanol - University of Illinois Extension - 0 views

web.extension.illinois.edu/ethanol ethanol
shared by hollale00 on 30 Sep 13 - No Cached
  • Ethanol is a grain alcohol that can be blended with gasoline and used in motor vehicles. Many gasoline stations provide a blended fuel, which typically is 10 percent ethanol and 90 percent gasoline.
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Biofuels: What happened to biofuels? | The Economist - 0 views

www.economist.com/...l-organic-matter-has-proved-be biofuel current
shared by schmettererdav00 on 04 Oct 13 - No Cached
  • Ethanol, for instance, is an alcoholic biofuel easily distilled from sugary or starchy plants. It has been used to power cars since Ford’s Model T and, blended into conventional petrol, constitutes about 10% of the fuel burned by America’s vehicles today.
  • anonymous on 05 Oct 13
     
    today hindi news,today news talmi,hindi news www.killdo.de.gg
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When Solar Becomes Cheaper Than Fossil Fuels | azizonomics - 0 views

azizonomics.com/...omes-cheaper-than-fossil-fuels solar cost
shared by sokolkyl00 on 30 Sep 13 - No Cached
  • If the trend continues for another 8-10 years, which seems increasingly likely, solar will be as cheap as coal with the added benefit of zero carbon emissions. If the cost continues to fall over the next 20 years, solar costs will be half that of coal.
  • When applied to electricity prices this predicts that solar generated electricity in the US will descend to a level of 12 cents (7 pence) per kilowatt hour by 2020, possibly even 2015 for the sunniest parts of America.
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Photovoltaic Cells - 0 views

www.energyeducation.tx.gov/...c.html picture solar photovoltaic
shared by charlesjos00 on 03 Oct 13 - No Cached
  • Photovoltaic cells are made of at least two layers of semiconducting material. The first layer has a positive charge; the next layer has a negative charge. When sunlight strikes the cell, the semiconducting material absorbs photons from the light. This process frees electrons from the negative layer, which move to the positive layer. This flow of electrons constitutes an electric current, which can be captured in a circuit connecting the two layers. The electricity generated by a photovoltaic cell can be used directly, stored in batteries or sold back to a utility company.
  • blackmerbru98 on 03 Oct 13
     
    yes but they will if you get enough of them they will outlast the fossil fuels but as this all burns out it can work as we will also by finding new planets we could find more and more fuels i expect this would . happen within a few decades of our time. as this might happen we could probably be able to live on other planets by then so when the sun actuly goes out we will be prepared

Wind Energy - 1 views

started by blackmerbru98 on 03 Oct 13 no follow-up yet
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How Geothermal Energy Works - 0 views

www.conserve-energy-future.com/HowGeothermalEnergyWorks.php fossil fuels geothermal convert
shared by deepat00 on 07 Oct 13 - No Cached
  • The amount with in the earth’s surface contains 50,000 times more energy than all the oil and natural gas resources in the world.
  • To get that heat, water is pumped down an “injection well”. Then it filters through the cracks in the rocks where they are at a high temperature. The water then returns via the “recovery well” under pressure in the form of steam. That steam is captured and is used to drive electric generators.
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Customer Feedback for Diigo - 1 views

feedback.diigo.com/...76211-ideas
shared by dpurdy on 02 Nov 11 - No Cached
  • anonymous on 28 Sep 13
     
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Zahroof Valves, Inc. - Reciprocating Compressor Valves Manufacturer - 1 views

www.zahroofvalves.com StraightFlo valve reciprocating compressor valves manufacturer
shared by zahroofvalves on 19 Sep 17 - No Cached
  • zahroofvalves on 19 Sep 17
     
    Zahroof Valves, Inc. (ZVI) is an innovative company, with its headquarters in Houston, Texas, that has developed and now markets the revolutionary StraightFlo valve for use in reciprocating gas compressors.
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The Disadvantages Of A Solar Generator | LIVESTRONG.COM - 1 views

www.livestrong.com/...dvantages-of-a-solar-generator cost
shared by ackleysam99 on 22 Oct 12 - No Cached
  • Solar power generators offer a no-emission alternative to ones that use fossil fuel. These generators come in small, portable sizes for temporary power or larger arrays for permanent energy production.
  • availability of sunlight given local weather conditions and the resilience of the photovoltaic cells when purchasing a solar generator.
  • Most photovoltaic cells rely on silicon crystals to generate power. Demand for silicon has driven its price higher, meaning a solar generator can require a sizable initial investment. In fact, SolarBuzz notes that 45 percent of solar cell cost comes from the silicon wafer. Typical 2 kilowatt solar generators cost from $16,000 to $20,000.
  • ...2 more annotations...
  • Solar generators powerful enough to supply electricity for a whole home also require a lot of space, with roof-mounted panels needing at least 50 square feet and possibly as much as
  • 1,000 square feet. Lack of Durability
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