Across
- 8. arrangement of mirrors in a parabolic trough
- 10. place of origin for solar thermal energy
- 11. began to be used widespread with the threat of...
- 12. requires equipment
- 14. uses flat mirrors
- 17. collects solar radiation
- 18. _______ to operate once produced
- 19. what the mirrors in solar thermal systems track throughout the day
- 20. not always 100% effective during the...
Down
- 1. where solar thermal energy is most effective
- 2. heated to produce steam
- 3. Solar thermal energy systems can reduce region's...
- 4. requires no equipment
- 5. replaced by solar thermal energy
- 6. produces electricity
- 7. type of energy that is generally better for the environment
- 9. most common solar thermal energy system
- 13. where the receiver is located in a solar thermal tower system
- 15. last name of inventor of solar thermal energy
- 16. less efficient during this time of year