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Renewable Energy Breakthroughs Unveiled
Moderate difficulty suitable for most players
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Across
  • 1. Power source harnessed from the sun’s rays
  • 2. Organic material used to produce renewable energy
  • 3. Device that converts mechanical energy to electrical
  • 4. Energy from flowing or falling water
  • 5. Machine converting wind or water flow into energy
  • 7. Measure of useful output compared to input energy
  • 8. Traditional device capturing wind power mechanically
  • 9. Group of solar panels connected to capture energy
  • 14. Combining two or more power sources in one system
  • 16. Alcohol fuel derived from plant starches or sugars
  • 19. Unit measuring the rate of energy flow or power
Down
  • 6. Energy derived from ocean's rise and fall
  • 10. Particle representing a quantum of light energy
  • 11. Material to reduce heat loss or gain in buildings
  • 12. Stores electrical energy for portable or backup use
  • 13. Heat energy originating from beneath the Earth’s surface
  • 15. Device generating electricity through chemical reactions
  • 17. Study of interactions between organisms and environment
  • 18. Act of making energy resources sustainable again
  • 20. Capturing energy for use at a later time

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