Wind, Solar and Geothermal

• What is the main source of wind power?

  Wind
• What is involved in using wind turbines for power generation?

  Putting lots of wind turbines in exposed places
• What do the rotating blades of a wind turbine do?

  Turn the generator to produce electricity
• What is a significant environmental benefit of wind turbines?

  They produce no pollution
• What is a drawback of wind turbines regarding noise?

  They can be very noisy, annoying nearby residents
• What happens to wind turbines when the wind stops?

  They stop generating electricity
• How much of the time do wind turbines typically produce electricity?

  70-85%
• What are the initial costs associated with wind turbines?

  They are quite high
• What is a significant advantage of wind turbines regarding fuel costs?

  No fuel costs involved
• What happens to the landscape if wind turbines are removed?

  No permanent damage to the landscape
• What do solar cells generate directly from sunlight?

  Electric currents
• Why are solar cells often considered the best energy source?

  They generate electricity directly from sunlight
• In what type of locations are solar power systems often used?

  Remote places with limited energy choices
• What is a significant environmental impact of solar power systems?

  They do not produce pollution
• What is a limitation of solar power systems in terms of energy generation?

  They only work during the day
• What is a common use for solar power?

  Charging batteries in calculators and watches
• How does solar power compare to wind power in terms of reliability?

  Solar power is reliable only during the day
• What is a significant drawback of solar power systems?

  They require a lot of space for installation
• What is a common characteristic of solar power systems?

  They generate energy from sunlight
• What is a benefit of solar power in sunny countries?

  It is a very reliable energy source
• How does the energy generation of solar power systems vary?

  It varies with sunlight availability
• What is a significant advantage of solar power in remote areas?

  It provides energy where there are few options
• What is a common use of solar energy in everyday devices?

  Charging batteries
• What is a limitation of solar energy in terms of energy storage?

  It requires batteries for storage
• How does solar energy impact the environment compared to fossil fuels?

  It has minimal environmental impact
• What is a challenge for solar energy in cloudy regions?

  It generates less energy
• What is a key feature of solar power systems?

  They convert sunlight into electricity
• What is a common misconception about solar energy?

  That it is ineffective in cloudy weather
• How does solar energy generation differ from wind energy generation?

  Solar energy relies on sunlight, wind energy on wind
• What is a significant advantage of solar energy in sunny climates?

  It can be harnessed effectively
• What is a common application of solar energy?

  Powering calculators
• What is a limitation of solar energy in terms of time of use?

  It is only available during the day
• How does the cost of solar energy compare to fossil fuels?

  Solar energy has no fuel costs
• What is a significant environmental benefit of solar energy?

  It does not produce pollution
• What is a common characteristic of solar energy systems?

  They convert sunlight into electricity
• What is a challenge for solar energy in urban areas?

  Limited space for installation
• How does solar energy generation vary with seasons?

  It decreases in winter months
• What is a significant advantage of solar energy in rural areas?

  It provides energy where few options exist
• What is a common use of solar energy in everyday devices?

  Charging batteries
• What is a limitation of solar energy in terms of energy storage?

  It requires batteries for storage