Renewable energy

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Across
  1. 1. A potentially renewable resource that comes from trees
  2. 2. Renewable energy sources are ___________
  3. 4. Renewable energy normally rely on ________ such as how solar panels need the sun to generate electricity
  4. 7. energy Energy from the heat within the earth, used for heating and electricity generation
  5. 8. Renewable energy introduces new ____ due to industries such as hydroelectric dams, Nuclear power plants etc.
  6. 9. This law states that whenever one form of energy is transformed into another, some of that energy is converted into a less usable form of energy such as heat
  7. 11. An energy source that can be regenerated indefinitely as long as it is not overharvested
  8. 16. Renewable energy uses such as hydroelectric dams usually have a high upfront ______
  9. 19. Renewable energy sources are ______
  10. 21. a potentially renewable resource made from the burning of wood, in the absence of oxygen
  11. 24. Renewable energy reduces __________________
  12. 25. A device that can be turned by water, steam, or wind to produce power such as electricity
  13. 27. Energy derived from the sun's rays and heat, normally converted into electricity by solar panels
Down
  1. 1. Energy harnessed from the wind
  2. 3. Sources of energy that are infinite
  3. 5. An energy source that cannot be used up
  4. 6. Alcohol made by converting starches and sugars from plant material into alcohol and CO2
  5. 10. The act of preserving natural resource and energy
  6. 12. Renewable energy technologies often require __________________________ than power plants
  7. 13. electricity generated typically through dams, to turn turbines and power generators
  8. 14. Biological material that has mass
  9. 15. A liquid fuel such as ethanol or biodiesel created from processed or refined biomass
  10. 17. a diesel substitute produced by extracting and chemically altering oil from plants
  11. 18. A network of interconnected transmission lines
  12. 20. Renewable energy sources such as hydropower are ________________ and may not be suitable for all regions
  13. 22. the ultimate source of almost all types of energy
  14. 23. Renewable energy sources are ______ than non-renewable energy sources.
  15. 26. solar A use of energy from the sun that takes advantage of solar radiation without active technology