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CHAPTER 24 SUN, WIND AND WATER ENERGY
CHAPTER 24 SUN, WIND AND WATER ENERGY
26
Biology
Undergraduate 1
11/27/2012

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Term
Key Words/ Concepts
Definition
Description
Term
Renewable Energy
Definition
energy from sources that are replenished over short time scales or that are perpetually available
Term
Sustainable energy
Definition
source, the energy must be renewable, with a low enough enviromental impact that it can be used for the long term
Term
Active Solar technologies
Definition
convert solar energy directly into electricity
Term
Solar Thermal Systems
Definition
another active technology that captures solar energy for heating
Term
Geothermal Energy
Definition
the heat stored underground, contained in either rocks or fluids
Term
Geothermal Heat Pump
Definition
A system that actively moves heat form the underground into a house to warm it or removes heat from a house to cool it
Term
Payback Time
Definition
The amount of time it would take to save enough money in operation costs to pay for the equipment
Term
Geothermal Power Plants
Definition
power plants that use the heat of hydrothermal reservoirs to produce steam and turn turbine to generate electricity
Term
Hydropower
Definition
The energy produced from moving water
Term
Conservation
Definition
Efforts that reduce waste and increase efficent use of resources
Term
Renewable Energy
Definition
Energy from sources that are replenished over short time scales or that are perpetually available
Term
Sustainable Energy Source
Definition
Energy sources that are renewable and have a low environment impact
Term
Wind Energy
Definition
Energy contained in the motion of air across Earth's surface
Term
Solar Energy
Definition
Energy harnessed from the Sun in the form of heat or light
Term
Photovoltaic (PV) cells
Definition
Also called solar cells, PV cells convert solar energy directly into electricity
Term
Active Solar Technologies
Definition
The use of mechanical equipment to capture, convert, and sometimes concentrate solar energy into a more usable form
Term
Solar Thermal System
Definition
An active technology that captures solar energy for heating
Term
Passive Solar Technologies
Definition
The capture of solar energy (heat or light) without any electronic or mechanical assistance
Term
Geothermal Energy
Definition
The heat stored underground, contained in either rocks or fluids
Term
Conservation
Definition
Efforts that reduce waste and increase efficient use of resources
Term
Geothermal Heat Pump
Definition
A system that actively moves heat from the underground into a house to warm it or removes heat from a house to cool it. This is used in over half a million homes around the world
Term
Hydropower
Definition
This is power generated by moving water, but it can potentially significant environmental and social costs
Term
Geothermal Power Plants
Definition
Power plants that use the heat of hydrothermal reservoirs to produce steam and turn turbines to generate electricity. They are reliable and efficient, but they are dependent on location.
Term
Payback Time
Definition
The amount of time it would take to save enough money in operation costs to pay for the equipment. This is used for geothermal heat pumps.
Term
Sustainable Energy
Definition
Since sustainable energy sources have their own strengths and weaknesses, no single source will likely meet the needs of any particular community.
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