02 Demand Benchmark, Engineering & Cost Basis
LI
WF
CS
AB
SW
IW
AG
M04 · Cost Basis
LI
Landscape Irrigation
Active
m³/yr · outdoor · Kₛ
▶ Optimised
Overview
Demand/Design Setup
Hydraulics & Auxiliaries
Engineering Calculations
Design Basis
QA Summary
Performance snapshot
Total Area
36,596
m²
ETo Reference Baseline (LWA)
64,263
m³/yr
Plant Water Budget (LWBKL)
28,331
m³/yr · ET₀ × KL × area
Hydraulic LWRH (MEL v4.9.2)
28,499
m³/yr · Ra & DULQ applied
Savings
35,764
m³/yr vs baseline water supply
Reduction %
55.7%
vs ETo Reference Baseline
KL wtd avg
0.441
landscape coeff
Pump Energy (direct only)
66,450
kWh/yr · excludes embedded/source
Pump EI (Epump/LWRH)sup
2.629
kWh/m³
Demand build-up Zone-based
Climate ET₀
ET₀ 1756 mm/yr
mm/yr
Synced
→
Zone Budget
KL ·
Ks×Kd×Kmc
Zone avg
→
Peak Rainfall Ra
10
mm/mo peak · MEL v4.9.2 credit
Synced
→
LWRH Benchmark (MEL v4.9.2)
28,499
m³/yr
Calculated
→
Pump energy
66,450
kWh/yr
Calculated
Missing Inputs
△
Zone water budget: Add zones in Setup tab with area and coefficient classes
Performance snapshot CALCULATED
WF Volume
3,947
m³
WF Demand
7,330
m³/yr
Pump + WTS Energy
587,893
kWh/yr
Water Intensitysup
80.204
kWh/m³
Demand build-up CALCULATED
Stored volume
3,947
m³
CALCULATED
→
Net evaporation
4,869
m³/yr
CALCULATED
+
Backwash
60
m³/yr
CALCULATED
+
Partial flush vol.
2,401
m³/yr
CALCULATED
→
Annual WF make-up demand
7,330
m³/yr
CALCULATED
Performance snapshot CALCULATED
Total CS W2C Energy
—
kWh/yr · pump + WTS + source embedded
Volume
40,380
m³/yr
Pump + WTS EIsup
4.638
kWh/m³
Annual pump energy
174,612
kWh/yr
Status
Active
calculated
Annual Make-up Water
40,380
m³/yr
Annual Evaporation
29,160
m³/yr
Annual Blowdown
9,720
m³/yr
Annual Drift
1,500
m³/yr
Source Embedded Energy
—
kWh/yr · E_source
Operational Energy Estimates (kWh/yr)
Pump energy (E_pump)—
WTS treatment energy (E_WTS)—
Source embedded energy (E_source)—
Total W2C energy—
EI Sequence (kWh/m³)
Pump-only: —
→
Pump+WTS: —
→
Total W2C (incl. source): —
Demand build-up
CT Systems
1
systems
→
Recirc Flow
500
m³/h
→
CoC
4.0
cycles
→
Drift Rate
0.05
%
→
Operating Hrs
6,000
h/yr design
6,148 h/yr effective
Annual Evaporation
29,160
m³/yr
E‑rate × hrs
+
Annual Blowdown
9,720
m³/yr
V‑evap ÷ (CoC−1)
+
Annual Drift
1,500
m³/yr
Qₐ × drift% × hrs
=
Make-up Water
40,380
m³/yr
Evap + Blow + Drift
→
Pump + WTS EI
4.638
kWh/m³
E‑pump ÷ MU‑ann
→
Total W2C EI
—
kWh/m³
E‑total ÷ MU‑ann
Performance snapshot CALCULATED
Annual Volume
394
m³/yr
Events/Day
90
ablutions
Annual Energy
68,985
kWh/yr
Energy Intensity (EI)sup
175.000
kWh/m³
Demand build-up
Capacity
200
worshippers
×
Sessions
5
prayer times
×
Wudu
5
L/event
=
Annual
767
m³/yr
Performance snapshot CALCULATED
SW Volume
2,600
m³
Annual Demand
5,821
m³/yr
Annual Energy
170,100
kWh/yr
Water Intensitysup
29.24
kWh/m³
Demand build-up CALCULATED
SW Volume
2,600
m³
MANUAL
→
Evaporation
2,625
m³/yr
CALCULATED
→
Losses total
3,196
m³/yr
CALCULATED
→
Total SW
5,821
m³/yr
CALCULATED
Performance snapshot CALCULATED
Annual Water Consumption
34,807
m³/yr
Domestic water EI MEL-IW-02sup
0.440
kWh/m³ · N09
Occupancy Breakdown
FTE 2677 + 1672 other
FTE + others
Completeness
● Complete
module status
Annual Potable Water
34,807
m³/yr
Non-Potable Water
0
m³/yr
Recycled Water / TSE (Municipality)
0
m³/yr
Total Water Savings
0.0
%
Demand build-up
FTE Total
2677
persons
+
Other Occ.
1672
SV+Retail+Other
×
Days/yr
365
days
=
Annual Demand
34,807
m³/yr
→
Modelled Pump Energy
15,315
kWh/yr
⚠ Missing Inputs
Design occupancy not set - annual demand cannot be calculated.
Performance snapshot FAO-56 ET₀×Kc
△
No crop zones defined. Add zones in the Design Setup tab to calculate AG demand and energy.
Total Irrigated Area
7,600
m²
Crop Zones
3
defined zones
Weighted Kc
1.07
area-weighted crop coeff.
Net Crop Source-Water Requirement
15,010
m³/yr
Total AG Source-Water Requirement (Crop + GHC)
21,599
m³/yr
Annual Crop Water Demand
15,010
m³/yr
Peak Month Demand
1,771
m³/mo
System Efficiency
90
%
Annual Pump Energy
45,005
kWh/yr
Crop Pump EI proxy (Epump/Vcrop)sup
2.836
kWh/m³
Demand build-up Zone-based
Irrigated Area
7,600
m²
Setup
→
GIR (ET₀×Kc/eff)
2088
mm/yr gross irrig. req.
FAO-56
→
Crop gross irrigation (LWRH, FAO-56)
15,866
m³/yr
Benchmark
→
+ GHC Source-Water (cooling/humidity)
6,589
m³/yr
GHC Calc
→
Pump energy
45,005
kWh/yr
Pump groups
→
Crop Pump EI proxy (Epump/Vcrop)
2.836
kWh/m³
E/Vcrop
Water Source Allocation Cost M02 WSA
Tariffs from M01 · source mix set here
Desal / Municipal
%
— USD/m³ ref
Groundwater / AG
%
— USD/m³ ref
Recycled / TSE
%
— USD/m³ ref
Sum
= 100%
Weighted AG Water Cost
—
USD/m³
Δ vs Desal-only
—
USD/m³
Desal Dependency α
—
% of source from desal
ET₀ Annual
1,756
mm/yr
ET₀ Peak Mo
196
mm/mo
Rainfall Ra
10
mm/mo peak
Cu
1/1000
m³/(mm·m²)
A · Landscape Water Budget US EPA, 2014 · USGBC
| Zone | Area m² |
Ks class | Ks | Kd class | Kd | Kmc class | Kmc | KL | System | DULQ | Base m³/yr |
LWRH m³/mo |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.900 | 0.90 | 2,553 | 288.0 | ||||||||||
| 0.500 | 0.90 | 2,927 | 174.6 | ||||||||||
| 0.200 | 0.90 | 7,191 | 142.4 | ||||||||||
| 0.500 | 0.90 | 11,416 | 681.1 | ||||||||||
| 0.600 | 0.70 | 14,807 | 1080.1 | ||||||||||
| 0.200 | 0.90 | 19,593 | 387.9 | ||||||||||
| 0.800 | 0.70 | 5,775 | 574.8 | ||||||||||
| TOTALS | 36,596 | area-weighted avg | 0.441 | 64,263 | 3328.8 | ||||||||
ETo Ref. Baseline
64,263 m³/yr
64,263 m³/yr
LWRH Benchmark
28,499 m³/yr
28,499 m³/yr
DULQ-Adj. LWR
35,766 m³/yr
35,766 m³/yr
Adjusted LWR
—
—
Final LWR
—
—
Peak LWRH
3328.8 m³/mo
3328.8 m³/mo
Total Area
36,596 m²
36,596 m²
Active DULQ (area-weighted)
fraction
CALCULATED
Active DULQ = area-weighted from zone system types (used in LWRH formula).
Reference values: Sprinkler 0.65–0.75 · Drip 0.85–0.95.
DULQ applies to hydraulic LWRH only (not plant water budget LWBKL).
US EPA WaterSense →
A · Water Feature Parameters
Surface aream²Manual
Average depthmManual
Backwash frequencytimes/yrManual
Partial flush intervaldaysManual
Partial flush fraction%Manual
B · Evaporation Model Synced ET₀
Open water evap. factor (f)×ET₀CALCULATED
Annual precipitation (P)mm/yrSYNC
Backwash vol./eventm³/eventManual
Category: CS / Type: CT — Cooling Tower
CT: evaporation + blowdown + drift are WSA-eligible source water. Pump energy counted in MEL S2.
A · Cooling System Design Setup
System
CT System 1
Total Recirc
500 m³/h
500 m³/h
Systems
1
1
Total Pump Power
28.4 kW
28.4 kW
A · Facility Parameters
Prayer space capacityworshippersManual
Avg occupancy per session%Manual
Sessions per day (prayer times)sessionsManual
% users performing ablution%Manual
Water per ablution event (wudu)L/eventManual
B · Operational Parameters
Operating days per yeardays/yrManual
A · Pool Specification
Pool surface aream²Manual
Pool volumem³Manual
Daily evaporation rate (GCC outdoor)mm/dayCALC
B · Bather Load
Average daily batherspersons/dayManual
Splash loss per batherL/batherManual
C · Filtration & Maintenance
Backwash flow ratem³/hManual
Backwash durationmin/eventManual
Backwash frequencyper weekManual
Annual full refill cyclestimes/yrManual
Operating days per yeardays/yrManual
Climate — Synced from M01
Annual precipitation (P)mm/yrSYNC
A · Building Occupancy Profile
| Parameter | Value | Unit | Source |
|---|---|---|---|
| FTE Male | persons | MANUAL | |
| FTE Female | persons | MANUAL | |
| FTE Total | 2677 | persons | CALC |
| Student / Visitor (male) | persons | MANUAL | |
| Student / Visitor (female) | persons | MANUAL | |
| Retail Customer (male) | persons | MANUAL | |
| Retail Customer (female) | persons | MANUAL | |
| Other (male) | persons | MANUAL | |
| Other (female) | persons | MANUAL | |
| Male Restrooms with Urinals | % | MANUAL | |
| Annual Days of Operation | days/yr | MANUAL |
FTE Total
2677
2677
Other Occupancy
1672
1672
Days / yr
365
365
B · Flush Plumbing Fixture Data
L/flush · LEED WE Credit 3 · Male-only fixtures use Male Restroom % factor
| Fixture Designation | Gender | Fixture Manufacturer |
Fixture Model |
Flush Rate (L/flush) |
% of Occupants |
FTE uses/day |
Stud/Vis uses/day |
Retail uses/day |
Other uses/day |
Annual m³/yr |
|
|---|---|---|---|---|---|---|---|---|---|---|---|
| 9804.4 | |||||||||||
| 3142.7 | |||||||||||
| 4159.4 |
Annual Flush Volume
17106.5 m³/yr
17106.5 m³/yr
C · Flow Plumbing Fixture Data
LPM · duration in seconds · ASHRAE 189.1
| Fixture Designation | Fixture Manufacturer |
Fixture Model |
Flow Rate (LPM) |
% of Occupants |
Duration sec |
FTE uses/day |
Stud/Vis uses/day |
Retail uses/day |
Other uses/day |
Annual m³/yr |
|
|---|---|---|---|---|---|---|---|---|---|---|---|
| 7657.1 | |||||||||||
| 7732.2 | |||||||||||
| 2311.7 | |||||||||||
| 0.0 |
Annual Flow Volume
17701.0 m³/yr
17701.0 m³/yr
Total Annual Potable Water
34807.5 m³/yr
34807.5 m³/yr
D · Non-Potable Water & Municipality Recycled / TSE
Non-Potable Water
| Water Source | Annual m³ | |
|---|---|---|
| Total Non-Potable | 0 m³/yr |
Recycled / TSE Water
| Water Source | Annual m³ | |
|---|---|---|
| Total Recycled / TSE | 0 m³/yr |
34,807
0
0
15,315
0.0
A · Climate Basis
Shared · BL / CU / OP
ET₀ Annual
1,756
mm/yr
ET₀ Peak Month
196
mm/mo
Rainfall / peak rainfall
10
mm/month peak
From M01 — climate reference only
Effective rainfall credit
applied to crop calc 0 m³/yr Greenhouse crop zones under cover
applied to crop calc 0 m³/yr Greenhouse crop zones under cover
Peff Peak Month
196
mm/month (ET₀ − P)
Climate source
M01
ET₀ annual used for annual demand · ET₀ peak month used for pump & valve sizing · Irrigation efficiency set per-zone in Schedule below
B · Crop Zone Schedule
| Crop / Zone | Crop Type | Area (m²) | Kc | Irrigation Method | Irrigation Efficiency (%) | Fertig. | Growing System | Drain. Mode |
Drain. % |
Active Months |
Net Crop Source Requirement (m³/yr) |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8,925 | ||||||||||||
| 4,958 | ||||||||||||
| 1,127 | ||||||||||||
| Total | 7,600 m² | 15,010 m³/yr |
Crop ET consumed = Area × ET₀ × Kc × (months/12) × 0.001 ·
Gross irrigation = (Crop ET consumed − Effective rainfall credit) ÷ irrig. eff. ·
Net source = Gross − drainage recovered → AG Loss / Makeup Ledger ·
For greenhouse crop zones, Effective rainfall credit = 0 unless rainfall directly enters the growing system.
A · Configuration
| Method | Zone-Based Water Budget US EPA 2014 / USGBC |
| Climate source | Synced from M01 |
| Annual ET₀ | 1,756 mm/yr |
| Peak monthly ET₀ | 196 mm/mo |
| Peak rainfall credit Ra (M01 synced · peak month) | 10 mm/mo (× 12 = 120 mm/yr annual credit · MEL v4.9.2 peak-month basis, not capped at site annual P) |
| Total irrigated area | 36,596 m² |
B · Water Balance
| Zone | Area m² |
KL | DULQ | ETo Baseline m³/yr |
LWR ann m³/yr |
LWRH m³/mo |
|---|---|---|---|---|---|---|
| Date palms | 1,454 | 0.900 | 0.90 | 2,553 | 2,298 | 288.0 |
| Trees | 1,667 | 0.500 | 0.90 | 2,927 | 1,464 | 174.6 |
| Shrubs | 4,095 | 0.200 | 0.90 | 7,191 | 1,438 | 142.4 |
| Groundcover | 6,501 | 0.500 | 0.90 | 11,416 | 5,708 | 681.1 |
| Turf grass | 8,432 | 0.600 | 0.70 | 14,807 | 8,884 | 1080.1 |
| Pennisetum Set. | 11,158 | 0.200 | 0.90 | 19,593 | 3,919 | 387.9 |
| Water features | 3,289 | 0.800 | 0.70 | 5,775 | 4,620 | 574.8 |
| TOTALS | 36,596 | 0.441 | 64,263 | 28,331 | 3328.8 |
| ETo Reference Baseline | 64,263 m³/yr Baseline |
| LWRH Benchmark (MEL v4.9.2 · Active Ra + Active DULQ applied) | 28,499 m³/yr |
| Peak LWRH | 3,328.8 m³/month |
| Water savings vs baseline | 35,764 m³/yr (55.7%) |
C · Energy
| Modelled Annual Pump Energy | 66,450 kWh/yr |
| Treatment energy | 8,481 kWh/yr |
| EI: Landscape Irrigation MEL-LI-02 CALCULATED | 2.629 kWh/m³ |
0.441
0.90
0.84
A · Configuration
| Method | MEL v4 Water Balance — WB-WF ANSI/ASHRAE/USGBC/IES 189.1 |
| Climate source | Synced from M01 — Abu Dhabi |
| WF Volume (Area × Depth) | 3,947 m³ 3,289 m² × 1.2 m · Calculated |
B · Water Balance
| Qevap Gross evaporation | 5,198 m³/yr 3,289 m² · ET₀ 1,756 mm/yr · f 0.90 · P 100 mm/yr net |
| Qprecip Precipitation credit | 329 m³/yr m³/yr |
| Net evaporation (Qevap − Qprecip) | 4,869 m³/yr max(0, V_evap − V_precip) = 5,198 − 329 m³/yr · MEL v4.9.2 EVAP-03 |
| Qback Backwash | 60 m³/yr m³/yr |
| Partial flush vol. (E2-WF3a) | — m³/yr |
| Total WF demand | 7,330 m³/yr |
C · Energy
| Modelled Annual Pump Energy | — kWh/yr |
| Treatment energy | — |
| EI: Water Feature | — kWh/m³ |
2,180 hrs/yr223.6 kW
487,448 kWh5.97 h/day1,335.5 kWh/day
A · Configuration
| Method | Cooling System Water Balance — Cycles of Concentration ASHRAE 189.1 / CTI Guidelines |
| Data source | Imported from M01 — overrideable |
| Cycles of concentration | 4.0 |
| Auto pump-only EI or Auto pump + WTS EI | Override |
40,38029,160
1,5009,720
174,6124.638
Energy governance · Source reconciliation CALCULATED MEL-CT-01–04 / MEL-CS-01 N09
Pump-only EI: — kWh/m³ (÷ Vmakeup m³/yr)
→
Pump+WTS EI: — kWh/m³ (÷ Vmakeup m³/yr)
→
Total W2C EI: — kWh/m³ (÷ Vmakeup m³/yr · B04)
A · Configuration
| Method | Per-event Wudu Water Budget Occupancy × Sessions × L/event |
| Prayer space capacity | 60 worshippers |
| Sessions per day | 5 prayer times |
| Water per wudu event | 12 L/event |
| Operating days | 365 days/yr |
B · Water Balance
| Avg users per session | 24 users |
| Ablution events / day | 90 events |
| Daily water demand | 1.080 m³/day |
| Annual water demand | 394 m³/yr |
C · Energy
| Modelled Annual Pump Energy | 68,985 kWh/yr |
| EI: Ablution Block | 175.000 kWh/m³ |
A · Configuration
Confirmed inputs
| Parameter | Confirmed Value | Source |
|---|---|---|
| Method | MEL v4 WB-SW · Pool Water Balance (Evap + Splash + Backwash + Refill) | CALC |
| Pool surface area | 1,250 m² | MANUAL |
| Pool volume | 2,600 m³ | MANUAL |
| Operating days per year | 300 days/yr | MANUAL |
B · Water Balance
CALCULATED
| Component | Value | Unit | Source |
|---|---|---|---|
| Qₜₛₐₚ Evaporation loss | 2,625 | m³/yr | CALC |
| Qₛₚₐₛₕ Bather splash | 450 | m³/yr | CALC |
| Qₛₐₒₖ Backwash | 1,446 | m³/yr | CALC |
| Vᵣₛₓₑₜₜ Full refill | 1,300 | m³/yr | CALC |
| Total make-up (Annual Demand) | 5,821 | m³/yr | CALC |
C · Energy
From Hydraulic Parameters tab
| Item | Value | Unit | Source |
|---|---|---|---|
| Modelled Annual Pump Energy | 170,100 | kWh/yr | CALC |
| Treatment energy | 114 kWh/yr | kWh/yr | CALC |
| EI: Swimming Pool | 29.24 | kWh/m³ | CALC |
10.63 kW
10.63 kWh
0.00 h/day
191.3 kWh/day
A · Configuration
Confirmed inputs
| Parameter | Confirmed Value | Source |
|---|---|---|
| Method | Fixture-by-Fixture Occupancy Model · LEED WE Credit 3 / ASHRAE 189.1 | CALC |
| Occupancy breakdown | FTE 2677 (M:1338/F:1339) | SV 1312 (M:656/F:656) | Retail 0 (M:0/F:0) | Other 360 (M:180/F:180) | MANUAL |
| Annual days of operation | 365 | MANUAL |
B · Water Balance
CALCULATED
| Item | Value | Unit | Source |
|---|---|---|---|
| Annual flush fixture water | 17106.5 | m³/yr | CALC |
| Annual flow fixture water | 17701.0 | m³/yr | CALC |
| Total annual potable water demand | 34,807 | m³/yr | CALC |
| Non-potable water offset | 0 | m³/yr | MANUAL |
| Recycled / TSE offset | 0 | m³/yr | MANUAL |
| Total water savings | 0.0 | % | CALC |
C · Energy
From Hydraulic Parameters tab
| Item | Value | Unit | Source |
|---|---|---|---|
| Specific energy | 0.440 kWh/m³ | kWh/m³ | CALC |
| Modelled Annual Pump Energy | 15,315 | kWh/yr | CALC |
| Treatment energy | 11,138 kWh/yr | kWh/yr | CALC |
| EI: Domestic Water System | 0.440 kWh/m³ | kWh/m³ | CALC |
Annual Potable
34,807 m³/yr
34,807 m³/yr
NPW + TSE Offset
0 m³/yr
0 m³/yr
Water Savings
0.0 %
0.0 %
Annual Energy
15,315 kWh/yr
15,315 kWh/yr
—
90 %
45,005 kWh/yr
2.836 kWh/m³
Demand build-up trace CALCULATED
| Parameter | Value | Unit | Basis |
|---|---|---|---|
| Total Irrigated Area | 7,600 m² | m² | CALC |
| Weighted Avg. Kc | 1.07 | — | CALC |
| Reference ET₀ (annual) | 1,756 mm/yr | mm/yr | CALC |
| Gross Irrigation Requirement | 2088 mm/yr | mm/yr | CALC |
| Crop ET consumed | 14,280 m³/yr | m³/yr | CALC |
| Gross crop irrigation | 15,866 m³/yr | m³/yr | CALC |
| Drainage / runoff | 1,587 m³/yr | m³/yr | CALC |
| Recovered / reused drainage | 856 m³/yr | m³/yr | CALC |
| Net crop source-water requirement | 15,010 m³/yr | m³/yr | CALC |
| GHC source-water requirement | 671 m³/yr | m³/yr | CALC |
| Total AG source-water demand (Crop net + GHC net) | 21,599 | m³/yr | CALC |
| Peak Month Demand | 1,771 m³/mo | m³/mo | CALC |
Energy governance trace CALCULATED
| Parameter | Value | Unit | Basis |
|---|---|---|---|
| Source embedded energy | 50,920 kWh/yr | kWh/yr | CALC |
| Pump energy | 45,005 kWh/yr | kWh/yr | CALC |
| WTS treatment energy | 600 kWh/yr | kWh/yr | CALC |
| Fertigation / dosing energy (if applicable) | n/a | kWh/yr | INPUT |
| Total AG M02 water-energy | 96,525 kWh/yr | kWh/yr | CALC |
| W2C denominator used | 116,000 m³/yr | m³/yr | CALC |
| AG W2C intensity | 3.628 kWh/m³ | kWh/m³ | CALC |
| Electricity tariff used | $0.0545/kWh | $/kWh | M01 |
| Grid EF used | 0.450 kgCO₂e/kWh | kgCO₂e/kWh | M01 |
C · Methodology
Crop demand = Area × ET₀ × Kc × months/12 ÷ irrigation efficiency × 0.001
AG source-water demand = Crop net source-water + GHC net source-water
AG M02 energy = Source embedded energy + Pump energy + WTS treatment energy
AG W2C = AG M02 energy ÷ selected AG denominator (WSA assigned when available; otherwise engineering demand)
AG source-water demand = Crop net source-water + GHC net source-water
AG M02 energy = Source embedded energy + Pump energy + WTS treatment energy
AG W2C = AG M02 energy ÷ selected AG denominator (WSA assigned when available; otherwise engineering demand)
Hydraulic mode
A · Pumps
Peak Power may be entered manually. If blank, W2C estimates from Q, Head and η = 0.72.
| Pump Designation | Qty | Peak Discharge m³/s |
Head m |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days of operation |
Daily Energy kWh/day |
Annual Energy MWh/year |
|
|---|---|---|---|---|---|---|---|---|---|---|
| 130.80 | 47.742k | |||||||||
| 51.07 | 18.642k | |||||||||
| 0.07 | 0.025k | |||||||||
| 0.05 | 0.019k | |||||||||
| 0.01 | 0.003k | |||||||||
| 0.01 | 0.002k | |||||||||
| 0.05 | 0.016k |
B · Valves
Unit note: Pump Groups use m³/s · Valve Programmes use l/s · 1 m³/s = 1,000 l/s
· Programmed daily volume = Valve flow (l/s) × Run time (min.) × 60 / 1,000
| Valve / Zone | Linked Pump Group | Valve flow l/s |
Programmed run time under normal conditions (min.) |
Programmed daily vol. m³/day |
Programmed annual vol. m³/yr |
Δ vs LWR Benchmark m³/yr |
Status | |
|---|---|---|---|---|---|---|---|---|
| 1.1 | 399 | -1,899 (req. 202 min) | ✗ FAIL | |||||
| 0.7 | 238 | -1,226 (req. 216 min) | ✗ FAIL | |||||
| 3.8 | 1,387 | -51 (req. 36 min) | ✓ PASS | |||||
| 0.3 | 100 | -5,608 (req. 2005 min) | ✗ FAIL | |||||
| 0.4 | 161 | -8,723 (req. 1932 min) | ✗ FAIL | |||||
| 2.7 | 973 | -2,945 (req. 141 min) | ✗ FAIL | |||||
| 3.1 | 1,119 | -3,501 (req. 145 min) | ✗ FAIL | |||||
| 1.2 | 437 | - | - |
C · Water Treatment System
Optional · linked to Water Source Allocation · EI method overrides power schedule
| Treatment System | Source Water | Treatment Train | Units | Treated Vol m³/yr |
Recovery % |
Treat. EI kWh/m³ |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days | Daily Energy kWh/day |
Annual Energy MWh/yr |
Reject Vol m³/yr |
Reject Reused m³/yr |
Reject Disposed m³/yr |
Reuse Destination | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 11.6 | 4.241 | - | - | ||||||||||||||
| 11.6 | 4.241 | - | - |
71.12
182.06
66.450
8.481
74.932
28,499
2.332
D · Hydraulic Reconciliation
QA
| Check | Formula | Value | Status |
|---|---|---|---|
| Pump available flow | Σ (Pump no. × Peak Discharge) × 1,000 | 98.0 l/s | l/s |
| Valve programmed flow | Σ simultaneous valve flow | 6.3 l/s | l/s |
| Flow margin | Pump flow − valve flow | +91.7 l/s (surplus) | ✓ Pass |
| Programmed Annual Volume | Σ programmed valve volume | 4,814 m³/yr | m³/year |
| LWRH Benchmark (MEL v4.9.2) | From LI Calculation tab | 28,499 m³/yr | m³/year |
| Volume gap | Programmed annual volume − LWRH Benchmark | -23,685 m³/yr | ✗ Gap |
A · Pumps
Peak Power may be entered manually. If blank, W2C estimates from Q, Head and η = 0.72.
| Pump Designation | Qty | Peak Discharge m³/s |
Head m |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days of operation |
Daily Energy kWh/day |
Annual Energy MWh/year |
|
|---|---|---|---|---|---|---|---|---|---|---|
| 19.20 | 6.739k | |||||||||
| 26.40 | 9.266k | |||||||||
| 19.20 | 6.739k | |||||||||
| 26.40 | 9.266k | |||||||||
| 36.00 | 12.636k | |||||||||
| 26.40 | 9.266k | |||||||||
| 216.00 | 75.816k | |||||||||
| 288.00 | 101.088k | |||||||||
| 52.80 | 18.533k | |||||||||
| 52.80 | 18.533k | |||||||||
| 360.00 | 126.360k | |||||||||
| 21.12 | 7.413k | |||||||||
| 107.52 | 37.740k | |||||||||
| 39.60 | 13.900k | |||||||||
| 79.92 | 28.052k | |||||||||
| 39.60 | 13.900k | |||||||||
| 216.00 | 75.816k | |||||||||
| 39.60 | 13.900k |
Pump Groups1
Total Flow0.518 m³/s
Daily Energy- kWh/day
Annual Energy584,963 kWh/yr
C · Water Treatment System
Optional · linked to Water Source Allocation · EI method overrides power schedule
| Treatment System | Source Water | Treatment Train | Units | Treated Vol m³/yr |
Recovery % |
Treat. EI kWh/m³ |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days | Daily Energy kWh/day |
Annual Energy MWh/yr |
Reject Vol m³/yr |
Reject Reused m³/yr |
Reject Disposed m³/yr |
Reuse Destination | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 8.0 | 2.931 | - |
WATER FEATURE WATER BUDGET
Backwash rate
m³/hManual
Backwash duration
h/eventManual
Annual precip. (P)
100
mm/yrSynced
H₀ pump hrs/day (open season)
h/dayManual
Hc pump hrs/day (closed season)
h/dayManual
Season length (S)
daysManual
E₁ = P × [H₀ × S + Hc × (365 − S)] · P = pump power (kW)
Budget Results CALCULATED
Monthly water use (wᵢ)611 m³/mo
Qevap - gross evaporation5,198 m³/yr
Qback - backwash volume60 m³/yr
Qprecip - precipitation credit329 m³/yr
Pumping time E₁ (open + closed)2,180 hrs/yr
Average daily hours5.97 h/day
System Results CALCULATED
Total design flow0.004 m³/s
Modelled Annual Pump Energy584,963 kWh/yr
Pₐ = 9.81 × Qm³/s × H / η
Water intensity EI80.204 kWh/m³
EI denominator: Vtotal = Vevap + Vback + Vrefill m³/yr · MEL-WF-01 (MEL-EVAP-03) · B05
223.601666.56
584.9632.931
587.8937,33080.204
D · Hydraulic Reconciliation
QA
| Check | Formula | Value | Status |
|---|---|---|---|
| Pump available flow | Σ (Pump no. × Peak Discharge) × 1,000 | 518.0 l/s | l/s |
| Required supply flow | Annual demand / (operating h/yr × 3,600) | 0.24 l/s | l/s |
| Flow margin | Pump flow − required flow | +517.8 l/s (surplus) | ✓ Pass |
| Annual pump throughput | Σ pump flow × annual runtime | 15,709,075 m³/yr | m³/year |
| Annual WF demand | From WF Calculation tab | 7,330 m³/yr | m³/year |
| Volume gap | Annual pump throughput − Annual WF demand | +15,701,745 m³/yr | ✗ Gap |
A · Cooling System Shared Parameters
Cooling range ΔT
°CManual
Cycles of concentration
CoCManual
Drift rate
% of flowManual
Operating hours per year
h/yrManual
Total Recirc
500 m³/h
500 m³/h
Evap Rate
4.860 m³/h
4.860 m³/h
Runtime
6,000 h/yr
6,000 h/yr
Total Pump Power
28.4 kW
28.4 kW
B · Pumps
Peak Power may be entered manually. If blank, W2C estimates from Q, Head and η = 0.72.
| Pump Designation | Qty | Peak Discharge m³/s |
Head m |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days of operation |
Daily Energy kWh/day |
Annual Energy MWh/year |
|
|---|---|---|---|---|---|---|---|---|---|---|
| 465.76 | 170.002k | |||||||||
| 11.15 | 4.070k | |||||||||
| 1.48 | 0.539k |
Pump Groups
3
3
Daily Energy
478.4 kWh/day
478.4 kWh/day
Annual Energy
174.61 MWh/yr
174.61 MWh/yr
C · Water Treatment System
Optional · linked to Water Source Allocation · EI method overrides power schedule
| Treatment System | Source Water | Treatment Train | Units | Treated Vol m³/yr |
Recovery % |
Treat. EI kWh/m³ |
Recirculation pump power kW |
Avg Ops h/day |
Usage % |
Days | Daily Energy kWh/day |
Annual Energy MWh/yr |
Reject Vol m³/yr |
Reject Reused m³/yr |
Reject Disposed m³/yr |
Reuse Destination | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1.7 | 0.606 | - | |||||||||||||||
| 32.9 | 12.000 | 3,061 | |||||||||||||||
| 0.1 | 0.049 | 3,240 |
D · Cooling System
Mode: Direct = enter all volumes. From heat load = evaporation & blowdown computed from kWhₚₕ input and CoC.
| System Name | Type | Mode | Heat Rejected MWhₚₕ/yr |
CoC | Evap m³/yr |
Drift m³/yr |
Blowdown m³/yr |
Leak/Drain m³/yr |
Recovered m³/yr |
Makeup Total m³/yr |
MWhₚₕ (report) |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40,380 | — | auto |
Systems
1
1
Total Makeup
40,380 m³/yr
40,380 m³/yr
Evap + Drift
30,660 m³/yr
30,660 m³/yr
Blowdown + Drain
9,720 m³/yr
9,720 m³/yr
Recovered
0 m³/yr
0 m³/yr
Thermal (report)
0 MWhₚₕ
0 MWhₚₕ
E · Cooling Loss / Makeup Ledger
Auto-generated
| Water Stream | Category | Gross m³/yr | Consumed m³/yr | Discharged m³/yr | Recovered m³/yr | Net m³/yr |
|---|---|---|---|---|---|---|
| Makeup Water — Source Required | Source Required | 40,380 | 30,660 | 9,720 | 0 | 40,380 |
| ▼ Show sub-rows (Evap, Drift, Blowdown) | ||||||
| ↳ Evaporation loss | Consumed | 29,160 | 29,160 | — | — | 29,160 |
| ↳ Drift loss | Consumed | 1,500 | 1,500 | — | — | 1,500 |
| ↳ Blowdown (discharged) | Discharged | 9,720 | — | 9,720 | — | 0 |
QA · Cooling System Checks
Auto
CT System 1 auto-populated · CoC = 4.0 · Makeup = 40,380 m³/yr
✓ PassMakeup water balance (Evap + Drift + Blow = MU)
Calculated: 40,380 m³/yr · Expected (CoC formula): 40,380 m³/yr
✓ PassBlowdown cross-check (B = Evap ÷ (CoC−1))
Calculated: 9,720 m³/yr · Expected (CoC formula): 9,720 m³/yr
✓ PassSection D auto-row populated
CT System 1 row injected with Evap = 29,160 m³/yr, Blowdown = 9,720 m³/yr, Drift = 1,500 m³/yr · Source Required = 40,380 m³/yr
✓ PassSection E (CS LML) auto-populated
4 ledger rows written: Source Required, Evaporation, Drift, Blowdown
29,160 m³/yr1,500 m³/yr
9,720 m³/yr40,380 m³/yr
174,612 kWh/yr4.638 kWh/m³
29.17478.39
174.61212.654
187.26640,3804.638
G · Hydraulic Reconciliation
QA
| Check | Formula | Value | Status |
|---|---|---|---|
| Pump available flow | Σ (Pump no. × Peak Discharge) × 1,000 | 140.2 l/s | l/s |
| Required recirculation flow | Design recirc rate Q_r / 3.6 | 138.9 l/s | l/s |
| Flow margin | Pump flow − required recirc flow | +1.3 l/s (surplus) | ✓ Pass |
| Modelled Annual Pump Energy (PG table) | Σ pump groups annual energy | 174,612 kWh/yr | kWh/yr |
| Annual CT makeup demand | Evap + Drift + Blowdown (from CT Calc tab) | 40,380 m³/yr | m³/year |
| Energy intensity check | Pump energy / Makeup demand | 4.324 kWh/m³ | ✓ OK |
DISTRIBUTION SYSTEM · ABLUTION
CALCULATED
Events per day
90
ablutions
Annual demand
394
m³/yr
Pump energy
68,985
kWh/yr
Energy intensity
175.000
kWh/m³
Basis: 200 worshippers × 60% occupancy × 5 sessions × 70% ablution rate × 5 L
A · Pumps
Peak Power may be entered manually. If blank, W2C estimates from Q, Head and η = 0.72.
| Pump Designation | Qty | Peak Discharge m³/s |
Head m |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days of operation |
Daily Energy kWh/day |
Annual Energy MWh/year |
|
|---|---|---|---|---|---|---|---|---|---|---|
| 189.00 | 68.985k |
Pump Groups
1
1
Daily Energy
189.00 kWh/day
189.00 kWh/day
Annual Energy
68.985 MWh/yr
68.985 MWh/yr
C · Water Treatment System
Optional · linked to Water Source Allocation · EI method overrides power schedule
| Treatment System | Source Water | Treatment Train | Units | Treated Vol m³/yr |
Recovery % |
Treat. EI kWh/m³ |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days | Daily Energy kWh/day |
Annual Energy MWh/yr |
Reject Vol m³/yr |
Reject Reused m³/yr |
Reject Disposed m³/yr |
Reuse Destination |
|---|
Edit facility parameters in the Setup tab to update water demand values.
10.50189.00
68.985-
68.985394175.000
D · Hydraulic Reconciliation
QA
| Check | Formula | Value | Status |
|---|---|---|---|
| Pump available flow | Σ (Pump no. × Peak Discharge) × 1,000 | 1.50 l/s | l/s |
| Required distribution flow | Daily demand / (service hours × 3,600) | 0.017 l/s | l/s |
| Flow margin | Pump flow − distribution flow | +1.48 l/s (surplus) | ✓ Pass |
| Annual pump throughput | Σ pump flow × annual runtime | 35,478 m³/yr | m³/year |
| Annual ablution demand | From AB Calculation tab | 394 m³/yr | m³/year |
| Volume gap | Annual pump throughput − Annual AB demand | +35,084 m³/yr | ✗ Gap |
A · Pumps
Peak Power may be entered manually. If blank, W2C estimates from Q, Head and η = 0.72.
| Pump Designation | Qty | Peak Discharge m³/s |
Head m |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days of operation |
Daily Energy kWh/day |
Annual Energy MWh/year |
|
|---|---|---|---|---|---|---|---|---|---|---|
| 567.00 | 170.100k |
Pump Groups
1
1
Daily Energy
567.00 kWh/day
567.00 kWh/day
Annual Energy
170.100 MWh/yr
170.100 MWh/yr
B · WTS
Optional · linked to Water Source Allocation · EI method overrides power schedule
| Treatment System | Source Water | Treatment Train | Units | Treated Vol m³/yr |
Recovery % |
Treat. EI kWh/m³ |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days | Daily Energy kWh/day |
Annual Energy MWh/yr |
Reject Vol m³/yr |
Reject Reused m³/yr |
Reject Disposed m³/yr |
Reuse Destination | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.3 | 0.114 | 38 |
Water Balance
CALCULATED
Total make-up volume5,821 m³/yr
Water intensity EI29.239 kWh/m³
Edit pool parameters in Setup tab to update water balance.
31.50
567.00
170.100
0.114
170.214
5,821
29.239
C · Hydraulic Reconciliation
QA
| Check | Formula | Value | Status |
|---|---|---|---|
| Pump available flow | Σ (Pump no. × Peak Discharge) × 1,000 | 117.0 l/s | l/s |
| Required filter flow | Design pump flow from first pump group | 39.0 l/s | l/s |
| Flow margin | Pump flow − filter design flow | +78.0 l/s (surplus) | ✓ Pass |
| Annual pump throughput | Σ pump flow × annual runtime | 2,274,480 m³/yr | m³/year |
| Annual SW demand | From SW Calculation tab | 5,821 m³/yr | m³/year |
| Volume gap | Annual pump throughput − Annual SW demand | +2,268,659 m³/yr | ✗ Gap |
A · Pumps
Peak Power may be entered manually. If blank, W2C estimates from Q, Head and η = 0.72.
| Pump Designation | Qty | Peak Discharge m³/s |
Head m |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days of operation |
Daily Energy kWh/day |
Annual Energy MWh/year |
|
|---|---|---|---|---|---|---|---|---|---|---|
| 55.20 | 20.148k | |||||||||
| 55.20 | 20.148k | |||||||||
| 55.20 | 20.148k |
Pump Groups
3
3
Daily Energy
165.60 kWh/day
165.60 kWh/day
Annual Energy
60.444 MWh/yr
60.444 MWh/yr
C · Water Treatment Systems
Optional · linked to Water Source Allocation · EI method overrides power schedule
| Treatment System | Source Water | Treatment Train | Units | WTS Treated m³/yr |
Recovery % |
Treat. EI kWh/m³ |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days | Daily Energy kWh/day |
Annual Energy MWh/yr |
WTS Reject m³/yr |
Reject Reused m³/yr |
Reject Disposed m³/yr |
Reuse Destination | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30.5 | 11.138 | - |
D · Hydraulic Reconciliation
QA CHECK
| Check | Value | Unit | Status |
|---|---|---|---|
| Pump available flow | 9.00 l/s | L/s | — |
| Design distribution flow | 1.39 l/s | L/s | — |
| Flow margin | +7.61 l/s (surplus) | L/s | ✓ Pass |
| Annual pump throughput | 283,824 m³/yr | m³/yr | — |
| Annual IW demand | 34,807 m³/yr | m³/yr | — |
| Volume gap | +249,017 m³/yr | m³/yr | ✗ Gap |
0.440 kWh/m³
15,315 kWh/yr
11,138 kWh/yr
0.440 kWh/m³
6.90
165.60
60.444
11.138
71.582
34,807
2.057
A · Pumps
Peak Power may be entered manually. If blank, W2C estimates from Q × Head ÷ η = 0.72.
| Pump Designation | Qty | Peak Discharge m³/s |
Head m |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days of operation |
Daily Energy kWh/day |
Annual Energy MWh/year |
|
|---|---|---|---|---|---|---|---|---|---|---|
| 123.30 | 45.005k | |||||||||
| Total Annual Pump Energy | 45.005 MWh/yr | |||||||||
B · Valve Groups
Flow in l/s · Programmed daily volume = Flow (l/s) × Run time (min) × 60 / 1,000
| Valve / Zone | Linked Pump Group | Flow l/s |
Run time min/day |
Days/yr | Daily vol m³/day |
Valve Group Annual m³/yr |
|
|---|---|---|---|---|---|---|---|
| 43.57 | 15,905 | ||||||
| Total Programmed Annual Volume | 15,905 m³/yr | ||||||
C · Water Treatment System
Optional · linked to Water Source Allocation · EI method overrides power schedule
| Treatment System | Source Water | Treatment Train | Units | Treated Vol m³/yr |
Recovery % |
Treat. EI kWh/m³ |
Peak Power kW |
Avg Ops h/day |
Usage % |
Days | Daily Energy kWh/day |
Annual Energy MWh/yr |
Reject Vol m³/yr |
Reject Reused m³/yr |
Reject Disposed m³/yr |
Reuse Destination | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.2 | 0.078 | - | - | ||||||||||||||
| 0.7 | 0.267 | - | - |
D · Crop Demand Link
READ-ONLY · TRACE
| Zone | Area m² |
ET₀ mm/yr |
Kc | Method | Eff % |
Effective Rain Credit m³/yr |
Crop ET Consumed m³/yr |
Gross Irrigation m³/yr |
Drainage / Runoff m³/yr |
Recovered / Reused m³/yr |
Net Crop Source Required m³/yr |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tomato Zone A - high-wire tomato | 4,500 | 1,756 | 1.07 | drip | 90 | 0 | 8,455 | 9,395 | 939 | 470 | 8,925 |
| Cucumber Zone B - trellis cucumber | 2,500 | 1,756 | 1.07 | drip | 90 | 0 | 4,697 | 5,219 | 522 | 261 | 4,958 |
| Nursery / herbs buffer zone | 600 | 1,756 | 1.07 | microspray | 90 | 0 | 1,127 | 1,253 | 125 | 125 | 1,127 |
| Total | 7,600 | — | — | — | — | 0 | 14,280 | 15,866 | 1,587 | 856 | 15,010 |
E · Greenhouse Cooling & Humidity Water
Shared · BL / CU / OP
Net Source = Water Required − Recovered · Stream 2 → LML
| Process Type | Area m² |
ACH | EAHE count |
Input mode | Water Required m³/yr |
Evap/Lost (calc) m³/yr |
Discharged m³/yr |
Recovered m³/yr |
Net Source (calc) m³/yr |
|
|---|---|---|---|---|---|---|---|---|---|---|
| 570 | 671 | |||||||||
| Total | 671 m³/yr | 570 m³/yr | 101 m³/yr | — | 671 m³/yr | |||||
E.1 · Ventilation Vapor Loss Driver
Advanced / optional · Only add to LML if vapor loss is not already represented by crop ET, fan-pad or fogging
| Process Tag | GHC Ref | GH Vol m³ |
ACH | Op Hrs /yr |
Input Mode | Vapor Loss m³/yr |
Repl. Req? |
Repl. Source m³/yr |
Count in Consumed? |
|
|---|---|---|---|---|---|---|---|---|---|---|
F · Loss / Makeup Ledger
READ-ONLY · CALCULATED
| Process | Required Supply m³/yr |
Consumed / Lost m³/yr |
Discharged / Disposed m³/yr |
Recovered / Reused m³/yr |
Net Source Required m³/yr |
Notes |
|---|---|---|---|---|---|---|
| Crop / Irrigation Demand | 15,866 | 14,280 | 731 | 856 | 15,010 | FAO-56 · eff 90% · 856 m³ drain recovered |
| Fogging / misting + EAHE | 671 | 570 | 101 | — | 671 | GHC · manual |
| Total | 16,537 | 14,850 | 831 | 856 | 15,681 |
G · Hydraulic Summary
CALCULATED
| Parameter | Value | Unit | Source |
|---|---|---|---|
| Total Installed Pump Power | 15.0 kW | kW | CALC |
| Annual Pump Energy | 45,005 kWh/yr | kWh/yr | CALC |
| Treatment Energy (WTS) | 600 kWh/yr | kWh/yr | CALC |
| Gross crop irrigation delivered | 15,866 m³/yr | m³/yr | CALC |
| Net crop source-water requirement | 15,010 m³/yr | m³/yr | CALC |
| GHC net source-water requirement | 671 m³/yr | m³/yr | CALC |
| Total AG source-water demand (Crop net + GHC net) | 15,681 m³/yr | m³/yr | CALC |
| Crop Pump EI proxy (Epump/Vcrop) MEL-AG-05 | 2.836 kWh/m³ | kWh/m³ | MEL-AG-05 |
| No. of Pump Groups | 1 | — | CALC |
H · Engineering Water Balance Ledger
READ-ONLY · CALCULATED
| Metric | Volume m³/yr | Source | |
|---|---|---|---|
| —— | |||
| Required supply | 16,537 | Calc | |
| Consumed / lost | 14,850 | Zone sum | |
| Discharged / disposed | 831 | WTS reject | |
| Recovered / reused | 856 | Recovery rows | |
| Internal recirculation | — | Recirc | |
| Net source-water requirement | 15,640 | Calc |
ⓘ Energy calculation basis: Agriculture pump energy is calculation-based (kW × operating hours from engineering inputs). EI = calculated kWh ÷ BMS/WSA annual supply volume. Use the override fields to apply BMS-measured or bill-based energy where available.
A · Design Parameters SYNCED from M01 — Abu Dhabi
| Parameter | Value | Unit | Source |
|---|---|---|---|
| Annual ET₀ | 1,756 | mm/yr | SYNCED |
| Annual rainfall P | 75 | mm/yr | SYNCED |
| Ks species factor | 0.60 (Medium) | - | CALCULATED |
| Kmc microclimate factor | 1.00 (Moderate) | - | CALCULATED |
| Kd density factor | 1.05 (Average) | - | CALCULATED |
| Active DULQ (area-weighted from LI Setup) | 0.84 calculated · (system refs: Sprinkler 0.70, Drip 0.90) | - | CALCULATED |
B · Manual Overrides
| Parameter | Value | Unit | Source |
|---|---|---|---|
| Effective irrigation days | 180 | days/yr | MANUAL |
| α desal dependency (active scenario · see Water Source Mix) | 44.3% | - | CALCULATED |
C · Regulatory References
| Reference | Description |
|---|---|
| US EPA, 2014 | Water Budget Method - Landscape Water Budget with KL = Ks × Kd × Kmc |
| USGBC LEED v4 | Outdoor water use reduction - Landscape Water Requirement calculation and compliance pathway |
| ASHRAE 189.1 | Standard for High-Performance Green Buildings - irrigation efficiency and plant coefficient references |
| Abu Dhabi EAD | Local climate ET₀ data and plant species coefficients for arid climate zone |
D · Calculation Method
KL = Ks × Kd × Kmc
·
ETo Ref. Baseline = ET₀annual × A × Cu
·
LWRH = (ET₀peak × KL − Ra) × A × Cu / DULQ
·
LWRH Benchmark = Σ[(ETo × KL−Ra,yr) × A / DULQ]
A · Design Parameters SYNCED from M01 — Abu Dhabi
| Parameter | Value | Unit | Source |
|---|---|---|---|
| Annual ET₀ | 1,756 | mm/yr | SYNCED |
| Open water evaporation factor (f) | 0.90 × ET₀ | ×ET₀ | CALCULATED |
| Annual rainfall P | 75 | mm/yr | SYNCED |
B · Manual Overrides
| Parameter | Value | Unit | Source |
|---|---|---|---|
| Backwash frequency | 12 | times/yr | MANUAL |
| Refill period | 30 | days | MANUAL |
| Pump efficiency (η) | 0.72 | - | W2C DEFAULT |
C · Regulatory References
| Reference | Description |
|---|---|
| MEL v4 WB-WF | ANSI/ASHRAE/USGBC/IES 189.1 Water Balance method for Water Features - evaporation, precipitation, backwash, and refill components |
| USGBC LEED v4 | Outdoor water use reduction - Water Feature demand calculation and compliance pathway |
| Abu Dhabi EAD | Local climate ET₀ and precipitation data for arid climate open-water evaporation estimates |
D · Calculation Method
Qevap = A × f × ET₀ × (days/365)
·
Qbleed = Qevap / (CoC − 1)
·
Qbackwash = freq × vol/event
·
Qrefill = Vpool × cycles
·
WFtotal = Qevap + Qbleed + Qbackwash + Qrefill − Qprecip
A · Design Parameters
| Parameter | Value | Unit | Source |
|---|---|---|---|
| Cycles of concentration (CoC) | 4.0 | - | MANUAL |
| Cooling range ΔT | 6 | °C | MANUAL |
| Drift rate | 0.05 | % of flow | MANUAL |
| Annual operating hours | 6,000 | h/yr | MANUAL |
| Pump efficiency (η) | 0.72 | - | W2C DEFAULT |
B · Manual Overrides
| Parameter | Value | Unit | Source |
|---|---|---|---|
| EI override | Auto (hydraulics-derived) | kWh/m³ | Override |
| Scenario data source | Imported from Module 01 | - | M01 SYNC |
C · Regulatory References
| Reference | Description |
|---|---|
| ASHRAE 189.1 | Standard for High-Performance Green Buildings - cooling tower water management, blowdown and make-up water requirements |
| CTI Guidelines | Cooling Technology Institute - cycles of concentration, drift rate, and evaporation rate calculation methodology |
| USGBC LEED v4 | Cooling tower water use - minimum CoC requirements and alternative water source compliance |
| Abu Dhabi RSB | Regulatory and Supervisory Bureau - local water conservation targets for building cooling systems |
D · Calculation Method
Erate = 0.00162 × ΔT × Qr (ASHRAE cooling tower evaporation formula)
·
Eann = Erate × hrs
·
Bann = Eann / (CoC − 1)
·
Dann = Qr × drift% × hrs
·
MUann = Eann + Bann + Dann
·
EI = Epump / MUann
A · Design Parameters
| Parameter | Value | Unit | Source |
|---|---|---|---|
| Water per wudu event | 5 | L/event | MANUAL |
| Sessions per day (prayer times) | 5 | sessions/day | MANUAL |
| Average occupancy per session | 60 | % | MANUAL |
| % users performing ablution | 70 | % | MANUAL |
| Annual operating days | 365 | days/yr | MANUAL |
B · Manual Overrides
| Parameter | Value | Unit | Source |
|---|---|---|---|
| Distribution pump power | 0.75 | kW | MANUAL |
| Pump operating hours / day | 8 | h/day | MANUAL |
C · Regulatory References
| Reference | Description |
|---|---|
| Islamic Jurisprudence | Wudu (ablution) water volume based on minimum sufficient water standard - typically 0.5–1 mudd (approx. 0.5–1 L), expanded to 3–8 L for modern fittings |
| ASHRAE 189.1 | Standard for High-Performance Green Buildings - plumbing fixture flow rates applicable to wudu taps and spray taps |
| Abu Dhabi UPC | Urban Planning Council - mosque facility standards including ablution area sizing and water efficiency requirements |
| GSAS / Estidama | Gulf Sustainable Assessment System - water use intensity benchmarks for religious facilities in GCC climate zone |
D · Calculation Method
Daily events = capacity × occupancy% × sessions × ablution%
·
Annual volume = daily events × Lwudu × opdays / 1,000
·
EI = pumpkW × h/day × opdays / annual volume
A · Design Parameters Abu Dhabi GCC Outdoor
| Parameter | Value | Unit | Source |
|---|---|---|---|
| Annual precipitation (P) | 100 | mm/yr | SYNCED |
| Daily evaporation rate (outdoor pool) | 7 | mm/day | MANUAL |
| Climate classification | GCC Outdoor — hot arid desert | — | SYNCED |
| Operating days per year | 300 | days/yr | MANUAL |
B · Manual Overrides
| Parameter | Value | Unit | Source |
|---|---|---|---|
| Backwash volume per event | Per Setup | m³/event | MANUAL |
| Full refill cycles per year | Per Setup | cycles/yr | MANUAL |
| Bather load (splash loss factor) | Per Setup | L/bather | MANUAL |
| Pump efficiency η | 0.72 | fraction | DEFAULT |
C · Regulatory References
| Reference | Description |
|---|---|
| MEL v4 WB-SW | Mandatory in Emirates (MEL) version 4 — Swimming Pool Water Balance methodology: evaporation + splash + backwash + refill |
| Pool Standards (GCC) | GCC pool design guidelines for outdoor pools in hot arid climates; bather load and filtration turnover rates |
| ASHRAE 189.1 | Standard for the Design of High-Performance Green Buildings — swimming pool water use and energy benchmarks |
| Abu Dhabi UPC Water Efficiency | Pearl Rating System and Abu Dhabi Urban Planning Council water use targets for recreational water features |
D · Calculation Method
Qevap = A × evaprate × opdays / 1,000
·
Qsplash = bathers × L/bather × opdays / 1,000
·
Qbackwash = flow × duration × freq × opweeks / 1,000
·
Qrefill = Vpool × cycles
·
SWtotal = Qevap + Qsplash + Qbackwash + Qrefill − Qprecip
A · Design Parameters LEED WE Cr.3 / ASHRAE 189.1
| Fixture Type | Baseline Vol / Flow | Design Vol / Flow | Unit | Standard |
|---|---|---|---|---|
| WC (Full flush) | 6.0 | 6.0 | L/flush | ASHRAE 189.1 |
| WC (Low flush) | 6.0 | 4.0 | L/flush | LEED WE Cr.3 |
| Urinal | 3.8 | 0.5 | L/flush | LEED WE Cr.3 |
| Basin Tap (Private) | 8.3 | 6.0 | LPM | ASHRAE 189.1 |
| Basin Tap (Public) | 8.3 | 1.9 | LPM | LEED WE Cr.3 |
| Shower Head | 9.5 | 9.5 | LPM | ASHRAE 189.1 |
| Kitchen Sink | 8.3 | 6.0 | LPM | ASHRAE 189.1 |
B · Manual Overrides
| Parameter | Value | Unit | Source |
|---|---|---|---|
| EI: Potable distribution system | kWh/m³ | MANUAL | |
| Urinal % factor applied to male occupants | 100% | % | DESIGN SET UP |
| Annual operating days | 365 | days/yr | DESIGN SET UP |
C · Regulatory References
| Reference | Description |
|---|---|
| LEED v4 WE Credit 3 | Indoor water use reduction - fixture-by-fixture baseline vs. design calculation methodology |
| ASHRAE 189.1 | Standard for the Design of High-Performance Green Buildings - plumbing fixture flow rates and flush volumes |
| FTE Equivalency | 1 FTE = 8 h full-day occupancy; transient visitors prorated by visit duration / 8 h |
| Gender Split | Male-only fixtures (urinals) apply urinal % factor to male occupant count; all other fixtures use total occupancy |
D · Calculation Method
Annual volume = Σ (fixture uses/day × vol or flow × duration × FTEeq × opdays) / 1,000
·
FTEeq: visitor = visit duration / 8 h
·
EI = EIpotable × Vpotable + EInpw × Vnpw) / Vtotal
·
Savings % = (Vbaseline − Vdesign) / Vbaseline
A · Design Parameters FAO-56 Penman-Monteith · ET₀×Kc
| Parameter | Value | Unit | Source |
|---|---|---|---|
| Calculation method | FAO-56 | — | STANDARD |
| Climate source (ET₀) | Synced from M01 | mm/yr | M01 |
| Kc reference | Per-zone crop coefficient | — | FAO-56 |
| System efficiency | 90 % (wt. avg) | % | DESIGN SETUP |
| Crop water demand formula | Area × ET₀ × Kc × (months/12) ÷ eff × 0.001 | m³/yr | CALC |
| EI basis | (Esource + Epump + EWTS) ÷ VAG | kWh/m³ | CALC |
| α desalination dependency (active scenario · desal volume ÷ AG WSA) | — | % | CALCULATED |
B · Regulatory References
| Reference | Description |
|---|---|
| FAO-56 Penman-Monteith | Crop evapotranspiration guidelines for computing crop water requirements. ETc = ET₀ × Kc. |
| MEL v4.9.2 AG Benchmark | AG_LWRH = Gross Irrigation Requirement × irrigated area. Hydraulic benchmark analogous to landscape LWRH. Energy basis: (Esource + Epump + EWTS) ÷ VAG. |
| Irrigation Efficiency | Drip: 85–95%. Sprinkler: 70–80%. Surface: 50–70%. Enter in Design Setup. |
A. Open Issues
✓ Final
Calculation Basis & Result Status
Module 02 water, energy, and cost-basis outputs are final when required platform inputs are complete. Downstream modules consume these outputs for GHG, LCC, and carbon value calculations.
✓ Fixed
Regression: Top-banner KPI cards hidden in Greenhouse mode
Root cause: Block 1
_hideKpiCards() in _applyAuth() fired for ALL categories with AUTH entries (li, wf, iw, ct, cs) without an activeDemoCase === 'medical' guard — hiding #ps-kpi-cards-row even in Greenhouse mode. Fix: wrapped call with medical case guard.
✓ Fixed
CS Water Demand & Supply Profile — demand bars orange instead of blue
Root cause:
CLR_DEMAND was set to amber #C4860A; demand bars rendered orange across all categories in the profile chart. Fix: changed CLR_DEMAND to medium blue #2B6CB5 — demand bars now match the blue palette used throughout the Medical demo. Note: requires hard-reload (Ctrl+Shift+R) to clear cached SVG.
✓ Fixed
Issue 18 — CS Model KPI vs WSA source plan mismatch
Root cause: WSA source plan for CT was seeded from project registry (
CAT_VOL_SHARE['ct']=0.45 × 285,000 m³/yr = 128,250) instead of the physics-derived makeup demand (40,380 m³/yr). Fix: _applyAuth() now overrides _m02WsaByScen + _m02WsaCat['ct'] with alpha-based source mix summing to 40,380 in all scenarios, then calls _wsaLoadCat('ct') to reload WSA inputs. BL: 40,380 desal. CU: 24,228 desal + 16,152 NPW. OPT: 8,076 desal + 32,304 NPW.
✓ Fixed
Regression: EI + Scope α KPI cards removed from Performance Summary banner
Root cause: Incorrect Issue 20 fix added medical mode guard to the render function at line ~36998, hiding
#ps-kpi-cards-row in Medical mode. These cards (EI value, Scope α) should remain visible in Medical mode. Fix: reverted render function to only hide KPI row for AG category (cat === 'ag'), restored portfolio cmp row to always-visible. KPI cards are now visible in both Greenhouse and Medical modes.B. Input Completeness & Data Quality
WSA source buckets2 source row(s) mapped
Source EI values entered2/2 sources have EI > 0
Pump groups (kW & hours)34 pump group row(s)
WTS recovery row(s)10 WTS row(s)
IW permanent occupancy△ Pending — enter in IW Setup
C. Source reconciliation
QA-SRC-01 through QA-SRC-08
Source Mapping Rollup
(WSA → LML demand assignment)
| Source | Bucket | WSA Available m³/yr |
Assigned to Demand m³/yr |
Surplus / Shortfall |
E‑src kWh/yr |
Status |
|---|---|---|---|---|---|---|
| Onsite NPW | Assign bucket | 83,960 | 28,499 | +55,461 | 8,550 | OK |
| Desalinated water | Assign bucket | 32,007 | 0 | +32,007 | — | Unused source |
| Total | 115,967 | 28,499 | +87,468 | 8,550 |
△ WarningQA-SRC-03: Supply/Demand Reconciliation Gap
WSA site supply differs from total process demand by 123,996 m³/yr. Surplus — verify whether excess WSA capacity is intentional.
ⓘ InfoQA-SRC-06: Tariff Profile — Module 01 Not Yet Connected
Source EI and tariff values are using interim defaults. Connect Module 01 source profiles to inherit tariff, EI, and boundary classification for each source.
✓ Source QA: 3/5 complete▼ Show
✓ CompleteQA-SRC-01: All Demand Rows Have Mapped Sources
Every source-required demand row for the active category has at least one WSA source assigned.
✓ CompleteQA-MAC-04: WSA Source Closure PASS (MEL v4.9.2 Rule 8)
Source closure (Vᶜˢᵘᵒˢ basis) = 1.000 — within 0.90–1.10 gate. MAC-04: PASS. Design benchmark variance is shown separately in closure chips as informational.
✓ CompleteQA-SRC-05: All Active Sources Have EI
Energy intensity is populated for all sources with assigned demand. Source energy is calculable.
D. Energy governance
QA-MEL-01–09 · 11–12 · MEL v4.9.2
△ WarningQA-PC4-17 [WARN] — LI Hydraulic Volume Gap > 10%
LI source allocation = 115,967 m³/yr; LWRH benchmark = 28,499 m³/yr. Gap = 75.4% (threshold: 10%). Verify hydraulic design model and valve flow schedules (Seguela 2017). MEL-QA-17 WARN — calibration difference expected for large medical facility.
✓ Performance QA: 17/17 complete▼ Show
✓ CompleteQA-MEL-01: Source Embedded Energy Calculated
E_source = 163,056 kWh/yr from 1 active source(s).
✓ CompleteQA-MEL-02: W2C Within Normal Range
W2C = 4.90 kWh/m³ — within expected range for LI.
✓ CompleteQA-MEL-03: Pump Energy Included
Portfolio E_pump = 1,170,558 kWh/yr across all active pump group tables.
✓ CompleteQA-MEL-04: WTS Treatment Energy Included
Portfolio E_wts = 36,263 kWh/yr from WTS treatment.
✓ CompleteQA-MEL-08: Carbon Estimate Available
Total carbon = 59.1 tCO₂e/yr at 0.64337 kgCO₂e/kWh. Note: Scope 3 uses the same grid EF as an approximation — set source-specific factors in Module 03.
✓ CompleteQA-MEL-09: Energy Cost Calculated
Energy cost = $NaN/yr; W2C cost = $0.039/m³ at $0.054/kWh.
✓ CompleteQA-MEL-11: All Energy Buckets Populated
Portfolio E_total = 1,369,877 kWh/yr across 3 active bucket(s).
✓ CompleteQA-MEL-12: Module 03/04 Seeds Ready
Portfolio W2C = 4.90 kWh/m³; p_mel_e_total, p_mel_w2c, p_mel_scope2_co2e, p_mel_scope3_co2e, p_mel_energy_cost and p_mel_w2c_cost are populated and available for Module 03/04 input.
✓ CompleteQA-PERF-06: Energy Breakdown Correctly Separated
Hydraulic Pumping card shows pump-only energy (1,170,558 kWh/yr). MEL E_total (1,369,877 kWh/yr) correctly includes pump + WTS + source embedded energy. Separation is confirmed — no double-count.
✓ CompleteQA-PERF-07: α Label — Multi-Category Scope
α card correctly shows "Selected Scope α" for custom multi-category scope.
✓ CompleteQA-PC4-11 — Source Allocation Denominator: 115,967 m³/yr ✓
Paper Calc4 denominator = 115,967 m³/yr (source allocation). Design-demand denominator = 28,499 m³/yr — correctly NOT used in Paper Calc4 mode. MEL-QA-11 PASS.
✓ CompleteQA-PC4-13 — LI Source Allocation Denominator Used (115,967 m³/yr) ✓
LI Paper Calc4 denominator (115,967 m³/yr) correctly differs from LWRH (28,499 m³/yr). Anti-regression guard: LI 4.93 kWh/m³ (LWRH denominator) excluded. MEL-QA-13 PASS.
✓ CompleteQA-PC4-14 — Desal Factor = 15.40 kWh/m³ ✓
E_3,desal = V_desal (32,007 m³/yr) × 15.40 = 492,908 kWh/yr. desalEnergyKwhM3 = 15.40 as required by MEL-QA-14 (Seguela 2020). MEL-QA-14 PASS.
✓ CompleteQA-PC4-15 — NPW Embedded Energy = 0 ✓
E_3,NPW = 0 kWh/yr in Paper Calc4 mode. npwEmbeddedEnergyKwhM3 = 0 as required by MEL-QA-15. MEL-QA-15 PASS.
✓ CompleteQA-PC4-16 — Portfolio Volume-Weighted (sum/sum) ✓
Portfolio W2C = Σ(E_cat) / Σ(V_paper_cat) = 11.53 kWh/m³ over 256,908 m³/yr source allocation. MEL-W2C-08: sum/sum confirmed (not arithmetic average). MEL-QA-16 PASS.
✓ CompleteQA-PC4-18 — Scope 3 Desal Energy Calculated ✓
V_desal = 32,007 m³/yr. E_3,desal = 492,908 kWh/yr at 15.40 kWh/m³. MEL-QA-18 PASS.
E. Category-Specific QA
α Current desal dependency0.27 Calc
Effective irrigation days — see Design Basis · B
✓ Confirmed
WF Inputs Declared
Surface area, depth, evaporation factor, and pump schedule entered. Data declared by user.
✓ Confirmed
Pump Energy Calculated
Pump energy derived from declared hydraulic inputs. Duty schedule accepted.
WF Key Assumptions
No overrides active–
✓ Confirmed
CS Source-Water Volume Calculated
Cooling system source/makeup water volume calculated from Evap + Blowdown + Drift (platform standard formula). Accepted as basis for WSA and financial model.
Cooling System Key Assumptions
CS source-water volume40,380 m³/yr Calculated
ⓘ AB: No active flags
Ablution values imported from Module 01.
ⓘ SW: No active flags
Swimming pool values imported from Module 01.
✓ Complete
IW: Occupancy Defined
Design occupancy confirmed. Annual demand and downstream outputs are calculated from entered occupancy data.
ⓘ Info
IW: Cost Basis — Platform Inputs Pending
IW CAPEX and unit cost inputs not yet confirmed. Module 02 cost-basis outputs will finalise when confirmed rates are entered in M04 Inputs.
→ Action:
Enter confirmed CAPEX and unit rates in M04 Inputs to close cost basis.
△ WarningQA-AG-02: Crop Demand Not Reaching Loss/Makeup Ledger
Crop zone data exists but no crop row was found in the Loss/Makeup Ledger (Section G). Recalculate to regenerate ledger rows from crop demand.
△ WarningQA-AG-09: AG WSA Mismatch — Stale Assignment
AG WSA assigned (26,605 m³/yr) differs from active AG demand (15,681 m³/yr) by 70%. Manual WSA rows will not be auto-updated — re-assign source volumes in the WSA panel to match the active 1,000 m² case.
ⓘ Notes & Info: 3 items▼ Show
ⓘ InfoQA-WTS-03: WTS Treated ≠ Recovered Water
WTS treated output is available water, not recovered/reused water. Only reject reused onsite counts as recovery in Section H.
ⓘ InfoQA-AG-06: VVL is Driver-Only (Not Counted in Consumed)
Ventilation Vapor Loss rows are present but none have "Count in Consumed" checked. These are treated as sizing/reference drivers only and do not add to consumed / lost water. This is correct if VVL is informational or captured elsewhere.
ⓘ InfoQA-AG-07: Thermal Cooling Energy is Report-Only
Estimated thermal cooling energy = 357,609 kWh_th/yr. This is latent heat only and must NOT be added to electrical kWh/yr totals. Only pumps, WTS treatment, and source EI contribute to electrical energy.
✓ AG QA: 10/15 complete▼ Show
✓ CompleteAG: Crop Zones — 3 zones defined
Total irrigated area: 7,600 m².
✓ CompleteAG: LWRₕ Benchmark Calculated
AG_LWRₕ = 15,866 m³/yr (FAO-56).
✓ CompleteAG: Pump Energy Calculated
Annual pump energy: 45,005 kWh/yr. EI = 2.836 kWh/m³.
✓ CompleteAG: EI Computed
Pump EI = 2.836 kWh/m³. W2C total EI includes source treatment energy.
✓ CompleteAG: Hydraulic M03 Check — Supply ≥ 50% LWRₕ
WSA supply = 168% of AG_LWRₕ.
✓ CompleteAG: Source Mix — α = 43.6%
AG desalination dependency α = 43.6%. Within acceptable range.
✓ CompleteQA-AG-01: Crop ET Counted as Consumed / Lost
Crop ET consumed = 14,280 m³/yr. Crop ET is captured from gross irrigation and counted as consumed/lost in the Water Balance.
✓ CompleteQA-AG-05: Greenhouse Evaporation Counted as Consumed / Lost
Greenhouse evaporated water (~570 m³/yr estimated) is auto-calculated from water required × process evap fraction and counted as consumed/lost in the Water Balance.
✓ CompleteQA-AG-10: GHC Evaporative Rows Have Water Input
All 1 evaporative process row has a non-zero water required value — water balance inputs are valid.
✓ CompleteQA-AG-11: Per-Scenario AG Demand Seeds — OK
getAGScenarioResult: BL = 27,280 | CU = 21,599 | OP = 15,681 m³/yr. ⚠ WSA shortfall in: BL (gap -675 m³/yr) — re-assign source volumes in the WSA panel.
F. Module 03/04 Handoff Readiness
p_mel_e_total — CS Energy (kWh/yr)83,481 kWh/yr
p_mel_w2c — CS W2C (kWh/m³)4.90 kWh/m³
p_mel_e_scope2 — CS Scope 2 (kWh/yr)83,481 kWh/yr
p_mel_e_scope3 — CS Scope 3 (kWh/yr)0 kWh/yr
p_mel_scope2_co2e (tCO₂e/yr)37.57 tCO₂e/yr
p_mel_scope3_co2e (tCO₂e/yr)0.00 tCO₂e/yr
p_mel_w2c_co2e (kgCO₂e/m³)0.324 kgCO₂e/m³
p_mel_energy_cost ($/yr)$4,550/yr
p_mel_w2c_cost ($/m³)$0.039/m³
Grid EF in use0.450 kgCO₂e/kWh
Electricity tariff in use$0.0545/kWh
G. Assumptions & Dependencies — click to expand
Module Integration & Scenario
ⓘ M01 Not Connected
Module 01 Integration Status
Module 01 is not connected in this session. Water demand benchmarks, climate data (ET₀), tariffs, and financial rates are loaded from Module 01 defaults or manually entered overrides. Connect M01 to sync live project data.
ⓘ Active Scenario
Scenario Basis for All Calculations
All Module 02 calculations use the active scenario (Baseline / Current / Optimised). Scenario-specific WSA, pump groups, and WTS inputs are captured per-scenario. Use the scenario selector to switch context before running calculations.
Key Calculation Assumptions
✓ Source EI Basis — click to expand
✓ Source EI Basis
Source Energy Intensity — kWh/m³ per source type
Source embedded energy (E_source) = Σ (WSA assigned volume × source EI). Scope 2 sources: NPW (onsite produced). Scope 3 sources: TSE, saline, desalinated (external), groundwater. EI values entered per WSA source row.
ⓘ Grid EF & Tariff — Preview Values
Carbon and Cost Calculations — Module 03/04 Activity Data
Grid emission factor (default 0.64337 kgCO₂e/kWh) and electricity tariff (M01 tariff $0.0545/kWh) are user-settable preview values. These are superseded by Module 03 (GHG) and Module 04 (cost) when connected. W2C carbon and cost metrics are indicative only until M03/M04 are live.
✓ Demand-Bounded α
α Desalination Fraction — WSA Assignment Bounded
α (desalination fraction) = desal volume assigned / total WSA assigned volume. α is demand-bounded: it cannot exceed 1.0 regardless of source mix. α drives the W2C carbon and energy split between desalination-dependent and alternative sources.
ⓘ Thermal Energy — Report Only — click to expand
ⓘ Thermal Energy — Report Only
Evaporation Thermal kWh_th — NOT in Electrical Total or W2C
Evaporative thermal energy (CS cooling tower evaporation × 627 kWh_th/m³) is a report-only metric. It is NEVER added to E_total or W2C electrical intensity. Thermal is reported in MWh_th/yr for reference alongside electrical kWh metrics.
✓ CS-over-CT Precedence — click to expand
✓ CS-over-CT Precedence
W2C Scope — CS Energy ÷ CS Assessed Volume
W2C intensity = CS-scoped energy (cat_e_total) ÷ CS assessed volume (WSA totalAssigned). Portfolio W2C = all-category energy ÷ sum of all category volumes — shown as a comparison only. CS-scoped W2C is the primary M03/M04 handoff metric.
Compare Mode — Read OnlyM04 Inputs are scenario-specific. Select Baseline, Current, or Optimised to edit financial inputs.
01 · Shared Financial Assumptions
Applied to all active categories in this scenario
years
%
%/yr
02 · Capital & Operating Costs by Category
Active categories only — updates when Assessment Scope changes
| Category | CapEx ($) *
ⓘ
Total installed capital cost for this category. Typical inclusions: · Pump package · Pump VFDs / starters · Valves / fittings / meters · Pipe / network · Water tanks / storage · Pressure vessel / tank · Water treatment systems & equipment · Electrical / power · Controls / instrumentation · Civil / builder's works · Testing & commissioning · Water quality commissioning tests · Engineering / design · Project management / construction supervision · As-built documentation / O&M manuals · Contingency · Contractor overhead and profit (as applicable) Enter the total installed cost inclusive of all items above. Expressed as $. |
Annual OpEx ($/yr) *
ⓘ
Enter engineering O&M costs only - water & electricity are calculated by the platform. User-entered (engineering O&M): · Chemicals & consumables · Water quality testing & monitoring · Tank cleaning and disinfection · Routine maintenance · Minor repairs & spare parts · Operator labour / service contract · Monitoring software / telemetry · Regulatory / compliance costs · Waste / backwash disposal · Other engineering OPEX (as applicable) · = Annual engineering OPEX (user input) Platform-calculated & added automatically: · Desalinated water purchase ($/yr) · Recycled / TSE water purchase ($/yr) · Groundwater purchase ($/yr) · Pumping electricity OPEX ($/yr) · Water treatment / process electricity OPEX ($/yr) → Total OPEX & unit operating cost ($/m³) |
Periodic Maintenance ($/event)
ⓘ
Non-annual major maintenance event cost ($/event). Typical inclusions: · Annual tank external inspection · Tank cleaning and disinfection · Annual water-quality / Legionella program allowance · Annual controls / instrumentation calibration · Annual Water Management Plan review · Emergency tank isolation / bypass test · Basic laboratory water-quality testing · Multimedia / sand filter service · Filter cartridge replacement · UV lamp replacement · RO pre-filter / membrane clean-in-place, if RO exists (where applicable) Use only for periodic major maintenance not already in Annual OpEx. |
Frequency (yr) | Replacement ($/event)
ⓘ
Cost per replacement event ($/event). Typical inclusions: · Pump replacement · Motor replacement · VFD / starter replacement · Valve / actuator replacement · Water meter / flow meter replacement · Membrane replacement · Filter / media replacement · UV lamp replacement · Chemical dosing equipment replacement · Sensor / instrumentation replacement · Control system replacement · Water treatment equipment replacement · Pressure vessel / bladder replacement · Storage liner / tank refurbishment · Pipework renewal allowance (as applicable) |
Frequency (yr) | Notes |
|---|---|---|---|---|---|---|---|
LILandscape Irrigation |
No active categories. Use the Assessment Scope panel on the left to activate categories for this scenario.
03 · Input Validation
Read-only readiness checks — no calculations shown
Shared Parameters
✓ Complete
Category Completeness
1 / 3 complete
Missing Inputs
WF CapEx, WF OpEx, AG CapEx, AG OpEx