Scenario 4
Implementation of a) a visitable green roof (NBS1 and NBS2) on top of the schools's multi-purpose building and the school entrance roof supported by rainwater harvesting (RWH) (1 roof) and b) a low green shelter (NBS3) at the east side of the school supported by greywater recycling (GWR) that is also utilised for students' WC
Simulation Period: 01/11/2014 - 12/07/2021
| Impervious area (m2) | 1580.56 |
| Green roof permeable pavement (m2) | 184.0 |
| Rainwater Harvesting roofs (m2) | 350.7 |
| Semi-intensive green roof (m2) | 45.0 |
| Extensive green roof (m2) | 113.7 |
| Planters (m2) | 6.0 |
| Green shelter (m2) | 269.3 |
| Rainwater Harvesting Tank capacity (L) | 10000.0 |
| Greywater Tank capacity (L) | 2000.0 |
| Month | NBS 1 Water Autonomy (%) | NBS 3 Water Autonomy (%) | Total NBS Water Autonomy (%) |
| 1 | 100.00 | 66.06 | 78.64 |
| 2 | 100.00 | 67.82 | 79.75 |
| 3 | 100.00 | 68.92 | 80.45 |
| 4 | 89.30 | 40.03 | 58.30 |
| 5 | 42.44 | 68.12 | 58.60 |
| 6 | 47.29 | 65.06 | 58.47 |
| 7 | 29.28 | 32.64 | 31.40 |
| 8 | 10.89 | 0.00 | 4.04 |
| 9 | 9.22 | 53.70 | 37.20 |
| 10 | 59.03 | 70.12 | 66.01 |
| 11 | 94.20 | 70.52 | 79.30 |
| 12 | 100.00 | 50.80 | 68.98 |
| EI-45 (ENV) | Site NBS Water Autonomy (%) | 46.59 |
| EI-46b (ENV) | Water Reuse (%) | 21.47 |
| EI-46a (ENV) | Potable Water Savings (%) | 3.71 |
| EI-44 (ENV) | Energy Consumption (kWh/year) | 224.00 |
| EI-50 (ENV) | Runoff coefficient (%) | 57.47 |
| EI-48b (ENV) | Stormwater treated/managed locally (%) | 19.34 |
| EI-48a (ENV) | Wastewater treated/managed locally (%) | 19.04 |
| CI-55 (ENV) | Impervious Surfaces (%) | 66.57 |
| EI-67 (URB) / CI-66 (ENV) | Green Surfaces/Spaces (%) | 33.65 |