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13 Cards in this Set
- Front
- Back
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renewable energy
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energy from sources that are replenished over short time scales or that are perpetually available
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sustainable energy
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energy from sources that are renewable and have a low environmental impact
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wind energy
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energy contained in the motion of air across Earth's surface
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solar energy
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energy harnessed from the sun in the form of heat or light
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Photovoltaic (PV) cells AKA solar cells
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converts solar energy directly into electricity
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active solar technologies
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use of mechanical equipment to capture, convert, and sometimes concentrate solar energy into a more usable form
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solar thermal system
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active technology that captures solar energy for heating
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passive solar technologies
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capture of solar energy without any electronic or mechanical assistance
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geothermal energy
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system that actively moves heat from the underground into a house to warm it or removes heat from a house to cool it
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payback time
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amount of time it would take to save enough money in operaton costs to pay for the equipment
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geothermal power plants
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use the heat of hydrothermal reservoirs to produce steam and turn turbines to generate electricity
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hydropower
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energy produced from moving water
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conservation
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effort that reduce waste and increase efficient use of resources
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