Free tools

Understand your building's
ESG exposure — for free

Two interactive tools to benchmark your building's energy and water performance against South African norms, and calculate your carbon tax liability.

ESG Benchmark Tool

Enter your building's key metrics to see how it compares against South African commercial benchmarks (SANS 10400-XA, GBCSA, SAPOA).

Gross floor area (m²)5,000 m²

Energy Use Intensity (kWh/m²/yr)180 kWh/m²/yr

Water intensity (kL/m²/yr)0.6 kL/m²/yr

Waste Intensity (kg/m²/yr)20 kg/m²/yr

Circular Economy Intensity (kg/m²/yr)5 kg/m²/yr

Primary energy source

Your results

Energy performance rating

Average180 kWh/m²/yr vs SA avg 185

Annual carbon footprint

828 tCO₂e

tCO₂e / year

R195,408

Carbon tax liability / yr

Waste & Circular Economy

58 tCO₂e

Waste emissions / yr

-15 tCO₂e

Circular economy offset / yr

Want a full audit? GreenBDG's consulting team can benchmark your entire portfolio against GRESB, Green Star, and SANS standards — and model your path to net zero.

Carbon Tax Calculator

Calculate your building's current carbon tax liability under the Carbon Budget Act (R236/tCO₂ in 2026) and see how much you could save with a 30% reduction.

Gross floor area (m²)2,500 m²

Energy Use Intensity (kWh/m²/yr)200 kWh/m²/yr

Water intensity (kL/m²/yr)0.8 kL/m²/yr

Your carbon tax exposure

Current liability

R103,488

per year at R236/tCO₂ (2026 rate)

Total carbon footprint

438 tCO₂e/yr

If you reduce by 30%

R31,046

saved per year

131 tCO₂e

avoided per year

GreenBDG typically delivers 25–38% energy reductions — reducing your carbon tax liability and improving your GRESB score simultaneously.

Understand your building'sESG exposure — for free

ESG Benchmark Tool

Your results

Carbon Tax Calculator

Your carbon tax exposure

See the platform in action

Demo request received

Understand your building's
ESG exposure — for free