Across
- 3. scorching
- 6. Efficient
- 9. Interconnections
- 11. Drawn-up
- 12. Benefit
- 14. desolate
- 18. Cheap
- 19. boom
- 20. Rid
- 21. Viable
- 23. turbine
- 25. Shade
- 26. trough
- 27. Pie-in-the-sky
- 31. square-metre
- 32. untapped
Down
- 1. Broke
- 2. Go-down-well
- 3. Scale-up
- 4. Heat-exchanger
- 5. vital
- 7. Desalination
- 8. Marred
- 10. Spread-out
- 13. impoverished
- 15. strikes
- 16. Tank
- 17. Footing-the-bill
- 22. break-even
- 24. Storage
- 28. Issues
- 29. Grid
- 30. Focus