Wind and solar

• What are the two renewable energy sources discussed in the video?

  Wind power 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 converts the kinetic energy from wind into electrical energy in a wind turbine?

  A generator inside the turbine
• What is the main function of solar cells?

  To generate electric currents directly from sunlight
• What is one application of solar power mentioned in the video?

  In low energy devices like watches and calculators
• Why is solar power useful in remote regions?

  Because they aren't connected to the main power grid
• What is a significant advantage of both wind and solar energy?

  They have very low running costs and don't produce pollutants
• What is a major disadvantage of wind and solar energy?

  They are both dependent on the weather
• What is a problem related to peak demand for wind and solar energy?

  There is no way to increase supply when demand peaks
• What is a common complaint about wind turbines?

  They don't look very nice and are too noisy
• What is a key environmental benefit of wind and solar energy?

  Neither damages the environment
• How are the costs of wind and solar energy changing over time?

  Both are getting cheaper every year