Scenario 3

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)

Simulation Period: 01/11/2014 - 12/07/2021

Scenario 3
Key Inputs
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 94.17 96.33
2 100.00 100.00 100.00
3 100.00 100.00 100.00
4 89.30 71.72 78.24
5 42.44 94.03 74.90
6 47.29 96.09 77.99
7 29.28 38.11 34.83
8 10.89 0.00 4.04
9 9.22 70.68 47.89
10 59.03 100.00 84.84
11 94.20 100.00 97.85
12 100.00 100.00 100.00
Annual Indicators
EI-45 (ENV) Site NBS Water Autonomy (%) 59.45
EI-46b (ENV) Water Reuse (%) 9.33
EI-46a (ENV) Potable Water Savings (%) -6.98
EI-44 (ENV) Energy Consumption (kWh/year) 216.07
EI-50 (ENV) Runoff coefficient (%) 57.47
EI-48b (ENV) Stormwater treated/managed locally (%) 19.34
EI-48a (ENV) Wastewater treated/managed locally (%) 7.53
CI-55 (ENV) Impervious Surfaces (%) 66.57
EI-67 (URB) / CI-66 (ENV) Green Surfaces/Spaces (%) 33.65