Sustainable Water Engineering Calculation Excel Template
The Sustainable Water Engineering Calculation Excel Template is a standardized, modular spreadsheet tool designed to support engineers and planners in quantifying water sustainability metrics—including water balance, energy use, carbon footprint, and resource recovery—across water supply, wastewater treatment, stormwater management, and reuse systems. It integrates hydrological, hydraulic, and life-cycle assessment (LCA) principles into an accessible computational framework. The template emphasizes transparency, reproducibility, and scenario-based decision support for low-impact, climate-resilient water infrastructure.
📖 Overview
📑 Key Components
🎯 Applications
- ✓ Feasibility analysis for decentralized wastewater reuse systems
- ✓ Life-cycle assessment of constructed wetlands vs. membrane bioreactors
- ✓ Regulatory compliance reporting for municipal water sustainability plans
📐 Key Formulas
Annual Water Balance
Inflow - Outflow = ΔStorage + Losses
Calculates net change in system water storage considering precipitation, runoff, infiltration, evapotranspiration, and withdrawals.
Pump Energy Consumption
E = (Q × H × ρ × g) / (η_pump × η_motor × 3.6e6)
Estimates annual electrical energy (kWh) required to lift water volume Q (m³/s) across head H (m), accounting for pump and motor efficiency.
Embodied Carbon of Pipe Network
EC = Σ(L_i × D_i × CF_i)
Computes total CO₂-equivalent emissions from pipe materials, where L_i is length, D_i is diameter-dependent material mass per unit length, and CF_i is material-specific carbon factor (kg CO₂e/kg).
🔗 Related Concepts
📚 References
📐 Prerequisites
Understand these before this topic
➡️ Next Step
Continue your engineering workflow
🔗 Engineering Applications
See how this applies across industries