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frasercol99

Top 10 Sources for Biofuel : Discovery News - 0 views

  • Organic matter is one such source. Materials like corn and soybeans have oil extracts that can be converted to ethanol or biodiesel
  • more sustainable than petroleum, meaning they can be regrown and remain productive with less negative impact on our ecosystem.
  • Some biofuels that provide more long-term benefits may prove too expensive to pursue
  • ...5 more annotations...
  • Runge estimated that in the United States alone, some 1.3 billion tons of cellulose material could be harvested for biofuel use. Cellulose is basically fiber, and can be found in things ranging from switchgrass to trees such as hybrid poplar and willow.
  • 1. Cellulose
  • 2. Algal Oil
  • Because algae are grown in water, they overcome one of the major problems faced by other biofuels -- competition for land with agricultural crops.
  • 3. Corn
schmettererdav00

http://www.howstuffworks.com/fuel-efficiency/biofuels/10-advantages-of-biofuels.htm - 0 views

  • As gas prices rise and global warming becomes more pervasive, more people are using biofuels as a way to save money and decrease their consumption of fossil fuels.
charlesjos00

How Solar Works in 4 Steps « Energy4Home - 0 views

  • 1) Individual silicon based (most commonly) cells called photovoltaics (PV) make up the modern day solar panel. These PV cell clusters perform the task of converting incoming sunlight directly into electricity. 2) Wires attached to the panels transport the converted electricity to a piece of equipment called an inverter. The job of the inverter is to convert the solar generated Direct Current (DC) electricity into the type of power your home can use, which is called Alternating Current (AC). 3) After the electricity travels through the inverter, the AC electricity is then transported via wire to your breaker panel to meet your home’s electric demands. 4) The process doesn’t end there, though. There are times when your panels will generate more power than you consume and times when you aren’t generating enough electricity (night times and periods of low light). When your panels are not generating enough solar electricity, you will continue to get power from your local utility. However, when you’re generating a surplus of solar electricity, that excess clean energy will be “net metered” to your local utility grid and you may earn a credit on your power bill for that net metered electricity.
kurishkri00

About Wind Energy - 0 views

  •  
    Wind turbines harness wind energy to produce electricity that can be used to power homes and businesses across the Commonwealth. Wind power systems range from small turbines that power a single home or business to large, multi-turbine wind farms that feed into the grid and generate enough electricity to power thousands of Massachusetts homes.
bakereli00

Biofuels Cause Global Warming - 0 views

  • Almost all biofuels used today cause more greenhouse gas emissions than conventional fuels if the full emissions costs of producing these “green” fuels are taken into account,
sokolkyl00

Switch to Clean Energy | A Student's Guide to Global Climate Change | US EPA - 1 views

  • When we get electricity from renewable energy sources like wind and solar power, we avoid the carbon dioxide emissions that would have come from burning fossil fuels like coal, oil, or natural gas.
westkea00

Wave power in the United States - Wikipedia, the free encyclopedia - 0 views

  • Wave power in the United States is under development in several locations off the east & west coasts as well as Hawaii. It has moved beyond the research phase and is producing reliable energy for the Grid. It's use to-date has been for situations where other forms of energy production are not economically viable and as such, the power output is currently modest. But major installations are planned to come on-line within the next few years. Projects
  • Projects
bishophan00

Where Does Wind Power Come From? - 0 views

  •  Wind power is an interesting renewable energy source as wind turbines can essentially be placed anywhere geographically where there is ample wind to turn the wind blades.
  • One thing that we haven't written about extensively on the MyEnergySolution.com blog is wind power.  Wind power is an interesting renewable energy source as wind turbines can essentially be placed anywhere geographically where there is ample wind to turn the wind blades.
  • o put this in context, an average U.S. household uses about 10 megawatt-hours (MWh) of electricity each year. One megawatt of installed wind energy from a single large turbine can generate from 2,400 to more than 3,000 MWh annually – enough to power about 250 homes.
westkea00

An electrical approach to wave energy conversion - 0 views

  • Motions in nature, for example ocean waves, can play a significant role in tomorrow's electricity production, but the constructions require adaptations to its media. Engineers planning hydropower plants have always taken natural conditions, such as fall height, speed of flow, and geometry, as basic design parameters and constraints in the design
  • Extensive simulations of the wave energy concept are presented, along with results from the experimental setup of a multisided permanent magnet linear generator. The prototype is designed through systematic electromagnetic field calculations. The experimental results are used for the verification of measurements in the design process of future full-scale direct wave energy converters. The present paper, describes the energy conversion concept from a system perspective, and also discusses the economical and some environmental considerations for the project.
westkea00

Pelamis Wave Power - 0 views

  • Since 1998, the Pelamis development programme has covered all aspects of the design from the fundamental concept refinement through to accelerated cycle testing of individual components for reliability.
  • During the first phase of Pelamis development prior to full-scale operations in 2004, extensive numerical modelling and analysis and a range of technology demonstration models at different scales were used to understand survival characteristics in extreme waves and verify the accuracy of our simulations
westkea00

Renewable Energy Sources (4) Wave energy | dnahtigal - 0 views

  • Waves are caused by the action of winds on the sea. Waves can be many metres in height and contain a great deal of energy. This energy can be harnessed to drive turbines that generate electricity.
  • Wave energy collectors are of two main types. The first type directs waves into man-made channels, where the water passes through a turbine that generates electricity. The second type uses the up and down movement of a wave to push air
  • Wave energy can be harnessed in coastal areas, close to the shore. There has been one such device working on the island of Islay in Scotland since the early 1990s, producing 75kW of electricity.
mattisonmar00

How Can Wind Be Turned into Electricity - Ask.com - 1 views

  • The wind turbine is a rotating machine that turns the kinetic energy of wind into mechanical energy. The energy can then be used by machines or converted into electricity and stored.
thibodeaueth00

HowStuffWorks "10 Incredible Wind Power Facts" - 0 views

  • 8: One Megawatt of Wind Energy = 2,600 Fewer Tons of Carbon Dioxide So, with all the noise about clean energy, what kind of improvement are we really talking about with wind? Consider that every year 1MW of wind energy can offset approximately 2,600 tons of carbon dioxide (CO2) [source: NREL], and the interest comes into focus. The simple math is less fossil fuel consumption equals less CO2. And measuring carbon reduction has become a key benchmark for monitoring the progress of alternative energy adoption.
kirkpatrickcon99

Articles about Solar Energy - Los Angeles Times - 0 views

  • 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
mannixjul00

Fossils Fuels vs. Renewable Energy | Ecology Global Network - 1 views

  • 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
       
      history maybe?
kirkpatrickcon99

Solar Energy Diagram | Complete Diagrams on Solar Energy Facts - 1 views

  • 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
dylan purner

HowStuffWorks "Photovolatic Cells: Converting Photons to Electrons" - 0 views

  • 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.
mattisonmar00

Wind Turbine History - 2 views

  • 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
wooddan99

geothermal CO2 emissions - 0 views

  • 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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