Data collection design
We map every source to a system, an owner and a collection frequency, then automate the pulls that can be automated.
Carbon Accounting
An inventory is only useful if someone independent can trace it back to source. We build Scope 1, 2 and 3 accounts to GHG Protocol with the evidence trail attached, so assurance becomes a review rather than a rebuild.
Coverage
We resolve the questions that cause restatements later: organisational boundary, operational control, double counting and emission factor vintage.
Service
We map every source to a system, an owner and a collection frequency, then automate the pulls that can be automated.
Equity share, financial control or operational control — chosen deliberately and documented, including joint ventures and leased assets.
Structured outreach that replaces spend-based estimates with supplier-specific data, category by category.
A maintained emission factor library with vintage tracking, so year-on-year comparisons stay valid.
Evidence packs organised the way verifiers request them, cutting audit query cycles significantly.
Optional migration into the BNZ platform so the next cycle runs on live data rather than a fresh consulting effort.
Method
Agree boundaries, identify every source and name the data owner for each.
Pull activity data, resolve gaps and document any estimation method applied.
Apply factors, run internal QA and reconcile against prior years.
Support verification, then hand over the process so it runs annually.
Questions
Rarely. We screen all 15 to identify which are material, then build those out properly. Attempting full depth across every category in year one typically produces a large volume of low-confidence data that nobody trusts.
Both. GHG Protocol requires dual reporting where market instruments are held, and the two figures answer different questions — grid exposure versus procurement choices. We calculate and present both.
Category boundaries are defined explicitly at the outset, with particular attention to the overlaps that cause problems: purchased goods against capital goods, and upstream transport against distribution.
Yes, and it is often necessary when a baseline was built without an audit trail. We reconstruct from source records where they exist and clearly flag where documented estimation was required.
Send us your current numbers and we will tell you where the assurance risk sits before you commit to anything.