Challenging puzzle for experienced crossword solvers
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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