Power from the Sun and the Earth
- Created by: RajeevSood
- Created on: 08-05-16 14:22
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- Power from the Sun and the Earth
- Solar energy
- Solar energy travels through space to the Earth as electromagnetic radiation
- Solar cells can transfer solar energy into electrical energy
- Large numbers of these cells can be joined together to form a solar panel
- A solar power tower uses thousands of mirrors to reflect sunlight onto a water tank
- The water in the tank is heated as a result and steam is produced
- This steam turns a turbine, which turns a generator
- The water in the tank is heated as a result and steam is produced
- Geothermal energy
- This is produced inside the Earth by radioactive processes
- This heats surrounding rock
- In volcanic or other suitable areas, very deep holes are drilled
- Cold water is then pumped down to the hot rocks
- There it is heated and comes back to the surface as steam
- This steam turns turbines that turn generators
- Electricity is produced
- This steam turns turbines that turn generators
- There it is heated and comes back to the surface as steam
- Cold water is then pumped down to the hot rocks
- This is produced inside the Earth by radioactive processes
- Solar energy
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