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alternative energy resources
renewable energy resources
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biomass
material that makes up living organisms or comes from organisms
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biomass energy
energy that is produced from material that makes up living organisms or comes from organisms
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biofuels
liquid fuels from biomass sources
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ethanol
produced by the fermentation of starches or sugars; used in gasoline engines
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biodiesel
produced from vegetable oil, such as soybean oil
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biopower
electricity that is generated by the combustion of biomass
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geothermal energy
- heat produced by high pressure combined with the breakdown of radioactive elements; deep beneath the surface of Earth
- heats rocks below Earth's surface
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ground source heat pump
a system that takes advantage of the fact that the temperature of soil a few feet underground stays about the same all year, even though the air temperature changes
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hydropower
hydroelectric power; the use of the kinetic energy of moving water to turn turbines and generate electricity
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tidal energy
refers to using the movement of tidal water to generate electricity
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ocean thermal energy conversion (OTEC)
process that converts the thermal energy in ocean water to electrical energy that people can use
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passive solar heating
involves designing a building to collect, store, and distribute the sun's energy naturally
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active solar heating
uses technology to collect, move, and store heat derived from the sun
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flat-plate solar collector
consists of a black, heat-absorbing metal plate in a flat box w/ a glass cover
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photovoltaic (PV) cell
solar energy is converted directly into electricity
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concentrating solar power (CSP)
technology that uses mirrors to focus sunlight in order to generate electricity
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wind turbine
a device that converts the wind's kinetic energy, or energy of mition, into electrical energy
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wind farms
wind turbines built in groups
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electrolysis
process in which water molecules are boken down into oxygen gas and hydrogen gas by an electric current that runs through the water
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fuel cells
used to generate electricity by using hydrogen gas
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