Question

What energy transformation takes place in the generation of power from Geothermal energy?

• A. Chemical energy to electrical energy
• B. Thermal energy to Kinetic energy to electrical energy
• C. Potential energy to electrical energy
• D. Thermal energy to chemical energy to kinetic energy

Answer 1

The correct option is B

Thermal energy to Kinetic energy to electrical energy

The main energy transformations in Geothermal power stations are:

Thermal->Mechanical Kinetic->Electric Potential

A geothermal power plant gets energy from the heat deep below the surface of the earth. Shafts/wells are drilled down, often as deep as several kilometers, one to pump water down to the hot rocks, and another nearby which will allow the heated water (steam) to rise up. This steam is then used to spin electricity turbines which is connected to a generator that generates electricity.