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rascoekat00

Tidal Power Facts: Understanding How Tidal Energy Works | Sustainable Earth | Going Gre... - 0 views

www.isustainableearth.com/...tanding-how-tidal-energy-works

understanding tidal energy

shared by rascoekat00 on 23 Sep 13 - No Cached
  • Tidal power, often referred to as tidal energy, is a type of hydropower that harnesses the energy of our ocean’s tides or other flowing waterways to produce power, usually in the form of electricity.  As sea levels rise and fall or the currents flow underwater a potential energy is created.  By using equipment such as tidal energy generators and underwater turbines in areas of high tidal movements, the kinetic motion of the ocean can be used to turn the turbines, thus producing electricity. 
dpurdy

Where Geothermal Energy Is Found - Energy Explained, Your Guide To Understanding Energy... - 0 views

www.eia.gov/...index.cfm

geothermal location

shared by dpurdy on 11 Nov 12 - No Cached
  • Most Geothermal Resources Are Near Plate Boundaries The most active geothermal resources are usually found along major plate boundaries where earthquakes and volcanoes are concentrated. Most of the geothermal activity in the world occurs in an area called the Ring of Fire. This area encircles the Pacific Ocean.
  • The ring of fire goes around the edges of the Pacific. The map shows that volcanic activity occurs around the Pacific rim.Source: National Energy Education Development Project (Public Domain) Naturally occurring large areas of hydrothermal resources are called
dpurdy

Biofuels: Ethanol and Biodiesel - Energy Explained, Your Guide To Understanding Energy ... - 0 views

www.eia.gov/...index.cfm

biofuel current

shared by dpurdy on 11 Nov 12 - No Cached
  • U.S. Production 13.95 billion gallons 332.11 million barrels
  • U.S. Production 0.97 billion gallons 23.03 million barrels
dpurdy

Geothermal Energy and the Environment - Energy Explained, Your Guide To Understanding E... - 1 views

www.eia.gov/...index.cfm

geothermal pollution

shared by dpurdy on 11 Nov 12 - No Cached
  • eothermal power plants do not burn fuel to generate electricity, so their emission levels are very low. They release less than 1% of the carbon dioxide emissions of a fossil fuel plant. Geothermal plants use scrubber systems to clean the air of hydrogen sulfide that is naturally found in the steam and hot water.
  • Geothermal plants emit 97% less acid rain-causing sulfur compounds than are emitted by fossil fuel plants. After the steam and water from a geothermal reservoir have been used, they are injected back into the Earth.
dpurdy

Use of Geothermal Energy - Energy Explained, Your Guide To Understanding Energy - Energ... - 0 views

www.eia.gov/...index.cfm

geothermal current

shared by dpurdy on 11 Nov 12 - No Cached
  • In 2011, U.S. geothermal power plants produced about 17 billion kilowatt-hours (kWh), or 0.4% of total U.S. electricity generation.
dpurdy

Wind Energy and the Environment - Energy Explained, Your Guide To Understanding Energy ... - 0 views

www.eia.gov/...index.cfm

wind pollution

shared by dpurdy on 11 Nov 12 - No Cached
  • They may also reduce the amount of electricity generated from fossil fuels and therefore reduce the amount of air pollution, carbon dioxide emissions, and water use of fossil fuel power plants.
  • Modern wind turbines are very large machines, and some people do not like their visual impact on the landscape. A few wind turbines have caught on fire, and some have leaked lubricating fluids, though this is relatively rare. Some people do not like the sound that wind turbine blades make. Some types of wind turbines and wind projects cause bird and bat deaths. These deaths may contribute to declines in species that are also being affected by other human-related impacts. Many birds are killed from collisions with vehicles and buildings, by house cats and hunters, and by pesticides. Their natural habitats may be altered or destroyed by human development and by the changes in the climate that most scientists believe are caused by greenhouse gases emissions from human activities (which wind energy use can help reduce).
  • Making the metals and other materials in wind turbines and the concrete for their foundations requires the use of energy, which may be from fossil fuels.
dpurdy

Wind - Energy Explained, Your Guide To Understanding Energy - Energy Information Admini... - 1 views

www.eia.gov/...index.cfm

wind form sustainable

shared by dpurdy on 11 Nov 12 - No Cached
  • Wind is simply air in motion. It is caused by the uneven heating of the Earth's surface by the sun. Because the Earth's surface is made of very different types of land and water, it absorbs the sun's heat at different rates.
  • Wind is a renewable energy source because the wind will blow as long as the sun shines.
dylan purner

Energy Basics: Photovoltaics - 1 views

www.eere.energy.gov/...photovoltaics.html

solar history

shared by dylan purner on 08 Mar 13 - No Cached
  • First used in about 1890, "photovoltaic" has two parts: photo, derived from the Greek word for light, and volt, relating to electricity pioneer Alessandro Volta. And this is what photovoltaic materials and devices do—they convert light energy into electrical energy, as French physicist Edmond Becquerel discovered as early as 1839.
  • kenyonlau99 on 08 Mar 13
     
    "First used in about 1890, "photovoltaic" has two parts: photo, derived from the Greek word for light, and volt, relating to electricity pioneer Alessandro Volta. And this is what photovoltaic materials and devices do-they convert light energy into electrical energy, as French physicist Edmond Becquerel discovered as early as 1839. Becquerel discovered the process of using sunlight to produce an electric current in a solid material. But it took more than another century to truly understand this process. Scientists eventually learned that the photoelectric or photovoltaic effect caused certain materials to convert light energy into electrical energy at the atomic level. PV systems are already an important part of our daily lives. Simple PV systems provide power for small consumer items such as calculators and wristwatches. More complicated systems provide power for communications satellites, water pumps, and the lights, appliances, and machines in some homes and workplaces. Many road and traffic signs also are now powered by PV. In many cases, PV power is the least expensive form of electricity for these tasks."
dpurdy

Succeeding in the 21st Century -- Skills and Abilities for the Future TCA paper - 0 views

www.coedu.usf.edu/...tca_paper.htm

all

shared by dpurdy on 24 Oct 12 - No Cached
  • The exchange of thoughts and ideas by speech or writing
  • Cooperative effort within a group in order to achieve a desired goal
  • To give rise to imaginative or artistic abilities as well as the ability to find novel solutions to problems
  • ...5 more annotations...
  • Training or control over one's conduct for personal improvement as well as the ability to forgo immediate pleasure for long term goals
  • The ability to discern factual from opinionated information
  • The effective use of grammatical rules and guidelines in order to express one's ideas in correct form
  • bility to use computer technology effectively, including word-processing and spreadsheets
  • The ability to use the defined principles of logic and effectively engage in abstract thinking to achieve mastery or understanding
westkea00

Pelamis Wave Power - 0 views

www.pelamiswave.com/development-history

shared by westkea00 on 25 Sep 13 - No Cached
  • 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
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