Across
- 7. ocean thermal energy conversion
- 10. turbine spun by wind to produce energy
- 11. liquid fuels from biomass sources
- 12. heat-absorbing metal plate
- 14. water pumped through the ground to transfer heat for buildings
- 16. concentrating solar power
- 17. using technology to move and store heat from the sun
Down
- 1. water turning turbines to generate power
- 2. turning water into oxygen gas and hydrogen gas
- 3. heat from within the earth used to produce energy
- 4. energy produced using biomass
- 5. a small machine that turns hydrogen gass into water and energy
- 6. hydrothermal energy using the tides
- 8. a large group of turbines
- 9. electricity produced by buring of biomass
- 13. using windows to absorb heat from the sun
- 15. photovoltaic cell