People have harnessed the benefits of geothermal energy for centuries -- the ancient Romans used hot springs to heat homes. Of course the technology's definitely advanced since then. Take our quiz and see if you're up on all the geothermal tech talk.
Which of the following do geothermal power plants need to drive the turbines that generate electricity?
energy from the sun
deep deposits of steam or water
reservoirs of natural gas
Which part of the United States might you NOT find any deep deposits of geothermal resources?
Which part of the United States has the most geothermal resources?
What does a heat pump do?
Heat pumps move hot water stored in tanks.
Heat pumps transfer heat stored in the Earth or ground water into a building.
Heat pumps run oil furnaces.
Heat pumps are part of a solar array.
Why is geothermal energy similar to solar energy?
Both are fossil fuels.
Both are sources of renewable energy.
Both are cheap to harness.
Both can solve the world's dependence on foreign oil.
Compared to a natural-gas-fueled power plant, how much less carbon dioxide do geothermal power plants produce?
In which decade was the first large-scale geothermal power plant built in the United States?
What percentage of the world's energy comes from geothermal?
Can a heat pump also be used to cool a house?
Which of the following terms best describes a type of geothermal system that pumps ground water directly from a well into a building, and then allows the water to leave the building?
What type of geothermal system is a vertical loop?
What percentage of a home's cooling and heating needs can a heat pump provide?
Which of the following statements is true?
Geothermal energy is cheap to install.
Geothermal energy is created from fossil fuels.
Geothermal energy cannot be used to heat office buildings.
Geothermal energy improves indoor air quality.
Which state leads the nation in online geothermal power capacity?
Which country leads the world in geothermal production?
In a geothermal system, what happens to the salts and dissolved minerals that are pumped from inside the Earth?
They're injected back into the ground.
They are reused as fuel.
They're discarded in landfills.
They're used as construction materials.
Which of the following statements best describes a dry-steam geothermal power plant?
The steam goes directly to a turbine, which drives a generator that produces electricity.
The steam goes into a complicated system that generates clean water.
The steam is reused.
The steam is vented into the atmosphere.
How much money can a geothermal heating system save consumers on their energy bills?
5 to 10 percent
10 to 20 percent
30 to 50 percent
60 to 80 percent
Which of the following terms best describes the use of geothermal energy in fish nurseries?
Which of the following terms best describes a geothermal system in which an antifreeze solution is continuously circulated?