Green Building Calculator
Estimate the energy savings, water savings, and CO2 reduction from green building features versus standard construction.
sq ft
%
%
USD/kWh
Annual Energy Savings
3,375 USD
Energy Saved22,500 kWh
Water Saved40,000 gallons
CO2 Reduced9.39 metric tons
Annual Energy Savings vs Electricity Rate
How to Calculate Green Building Savings
Green buildings use less energy, water, and resources than conventional buildings.
Formula
Energy Saved = Building Size * Baseline EUI * Energy Savings %
Baseline EUI: ~15 kWh/sq ft/year for commercial, ~6 kWh for residential
Green Building Benefits
Example Calculation
A 5,000 sq ft green office saving 30% energy and 40% water at $0.15/kWh.
- 01Baseline energy: 5,000 * 15 = 75,000 kWh/year
- 02Energy saved: 75,000 * 30% = 22,500 kWh
- 03Annual savings: 22,500 * $0.15 = $3,375
- 04CO2 reduced: 22,500 * 0.92 / 2,204.6 = 9.39 metric tons