Two free, plain-English self-assessment tools for Australia — one for business emissions (NGERS), one for home energy ratings (NatHERS). No login, no fees, nothing stored.
Estimate whether a facility or corporate group crosses National Greenhouse and Energy Reporting thresholds, from fuel and electricity use.
Open the NGERS calculator →Get an indicative thermal star band for a home from a few key design inputs, and see how it compares to the 7-star standard.
Open the NatHERS estimator →Energy use for a facility, or the key features of a home. Everything runs in your browser.
A plain-English result against current thresholds and standards, with sources cited.
Practical, evidence-based ways to cut your footprint — then recalculate.