Renewable Energy Crossword

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Across
  1. 4. Meeting present needs without compromising future generations (14)
  2. 6. Having a net zero carbon footprint (12)
  3. 10. Small-scale power grid that can operate independently (9)
  4. 12. Energy generated from ocean waves (9)
  5. 13. Technology used in solar panels to convert sunlight to electricity (12)
  6. 15. Fuel derived from living matter (7)
  7. 16. Ratio of useful energy output to total energy input (10)
  8. 19. Energy derived from biological sources (9)
  9. 21. Element used as a clean fuel source (8)
  10. 22. Energy that produces little or no pollution (10)
  11. 24. Machine for generating rotary mechanical power from the energy of a stream of fluid (7)
  12. 25. Organic material used as fuel (7)
Down
  1. 1. Technology used to store energy for later use (13)
  2. 2. Wind farms located in the ocean (8)
  3. 3. Structure that converts wind energy into electricity (11)
  4. 5. Electricity generated from moving water (10)
  5. 7. Type of energy that is replenished naturally (9)
  6. 8. Energy of motion, harnessed in wind and hydro power (7)
  7. 9. Power generated from the rise and fall of sea levels (11)
  8. 11. Non-renewable energy sources like coal and oil (11)
  9. 14. Network for delivering electricity (4)
  10. 17. Device that converts DC to AC electricity (8)
  11. 18. Device used to store electrical energy (7)
  12. 20. Device that converts sunlight into electricity (11)
  13. 23. Energy derived from the heat of the Earth (10)