Wind and solar

• What types of renewable energy are discussed in the video?

  Wind and solar power
• How is wind power captured?

  Through the use of wind turbines
• Where are wind turbines generally placed?

  In exposed areas like malls or coasts
• What do wind turbines convert kinetic energy into?

  Electrical energy
• What is the function of the generator inside a wind turbine?

  To convert kinetic energy into electrical energy
• How is solar power generated?

  By solar cells in solar panels
• What do solar cells generate from sunlight?

  Electric currents
• In what types of devices do solar cells work well?

  Low energy devices like watches and calculators
• Where is solar power particularly useful?

  In remote regions like the Australian outback
• What is the current trend in solar energy usage?

  Used on a larger scale for towns
• What are the pros and cons of wind and solar energy?

  Pros:

  • Very low running costs
  • No pollutants produced, no carbon dioxide

  
  

  Cons:

  • High upfront costs
  • Production process can create pollutants
  • Dependent on weather conditions
  • Require a lot of space
  • Aesthetic and noise complaints
• What is a major issue with wind and solar energy generation?

  They depend on weather conditions
• What happens if the wind doesn't blow or the sun doesn't shine?

  They don't generate any electricity
• What is a limitation regarding peak demand for wind and solar energy?

  No way to increase supply during peak demand
• What is a common complaint about wind turbines?

  They don't look nice and are noisy
• How do wind and solar energy impact the environment?

  They do not damage the environment
• What is happening to the costs of wind and solar energy?

  They are getting cheaper every year
• What is the main function of wind turbines?

  • Capture wind energy
  • Convert kinetic energy to electrical energy
  • Supply electricity to the national grid