Geothermal Energy Concepts and Challenges

Mr. Smeeds introduces geothermal energy, explaining its use in power generation and environmental effects. The video covers the basics of geothermal energy, including how it generates electricity by using steam to turn turbines. It distinguishes between true geothermal heating and ground source heat pumps, highlighting their differences. The video concludes with a discussion on the pros and cons of geothermal energy, emphasizing its renewable nature and potential drawbacks like cost and limited availability.

What is the primary source of heat in geothermal energy?

• Solar radiation

• Radioactive decay in Earth's core

• Wind currents

• Ocean tides

How is electricity generated using geothermal energy?

• By burning fossil fuels

• By harnessing solar panels

• By capturing wind energy

• By using steam to turn turbines

What is a common misconception about ground source heat pumps?

• They are powered by solar energy

• They are the same as geothermal energy

• They require no electricity

• They are used only in summer

How do ground source heat pumps function in winter?

• They absorb heat from the air

• They release heat into the ground

• They absorb heat from the ground

• They use solar panels

What is a key difference between ground source heat pumps and true geothermal systems?

• True geothermal systems require deep drilling

• Ground source heat pumps use wind energy

• Ground source heat pumps are used only in summer

• True geothermal systems are powered by solar energy

Why is geothermal energy considered renewable?

• It uses solar panels

• The Earth's core heat is inexhaustible

• It relies on wind currents

• It uses ocean tides

What is a major environmental benefit of geothermal energy?

• It produces no waste

• It emits fewer air pollutants than fossil fuels

• It requires no water

• It is available everywhere

What is a significant drawback of geothermal energy?

• It is available everywhere

• It is inexpensive to set up

• It can release hydrogen sulfide

• It requires no maintenance

Why is geothermal energy not feasible everywhere?

• It is only effective near oceans

• It depends on solar intensity

• It needs specific geological conditions

• It requires high wind speeds

What is a financial challenge associated with geothermal energy?

• Minimal maintenance costs

• No need for infrastructure

• High initial cost due to deep drilling

• Low initial investment