44 Cube:

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Across
  1. 2. Convert solar energy to output
  2. 4. Tool used to measure output
  3. 6. Thermoelectric generator
  4. 8. Temperature control method
  5. 12. Four-sided frame shape
  6. 13. Starting comparison point
  7. 14. Thermal energy captured
  8. 15. Three-sided focus shape
  9. 16. Conductive material used
  10. 18. Change that increased output
  11. 20. 3D geometric solar system
  12. 21. Traditional PV cell system
  13. 22. Outer structural material
Down
  1. 1. Percentage of baseline reached
  2. 3. Early test model
  3. 5. Electrical output reading
  4. 7. Shape-based energy direction
  5. 8. 360-degree flow shape
  6. 9. Enclosure effect for heat
  7. 10. Growth through improved design
  8. 11. Reflectors that direct light
  9. 12. Energy source from the sun
  10. 17. Light particles from the sun
  11. 19. Urban apartment testing location
  12. 21. Clear top material