Solar Energy

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Across
  1. 3. According to the ____ law of thermodynamics, solar cells will never reach 100% efficiency
  2. 6. when photons strike and ionize semiconductor material on the solar panel, causing outer electrons to break free of their atomic bonds
  3. 7. During what time of the day do solar panels not generate power
Down
  1. 1. Are examples of financial incentives available, that make solar panels affordable
  2. 2. ____ solar power use mirrors to concentrate the sun's energy to generate electricity
  3. 4. The impact of solar panels is minimal compared to ____ and burning of fossil fuels.
  4. 5. What type of climate are solar panels more efficient because excessive heat can reduce the voltage they produce.