Across
- 2. Type of ground loop?
- 4. Type of greywater treatment?
- 5. Solar thermal tubes?
- 6. Must be obtained before installing a wind turbine?
- 7. No solar if?
- 8. Micro hydro pipeline?
- 11. Objects that cause shading should be?
- 13. Viable source for greywater reuse?
Down
- 1. Not safe to be consumed by humans?
- 2. PV modules contain these?
- 3. Type of rainwater harvesting system?
- 9. Common type of CHP engine?
- 10. Common source of biomass?
- 12. Gas collected from land fill sites?