BNZ Green

BNZ Impact

A carbon ledger your auditor can follow

Spreadsheet inventories break down the moment someone asks how a number was derived. Our platform records every activity, factor and calculation as a traceable entry, so any figure can be opened down to its source document.

  • Scope 1, 2 and 3
  • Activity-level trace
  • Assurance ready

What it solves

The problem is not calculation, it is evidence

Emission factors are the easy part. What fails assurance is the missing trail between a reported tonne and the invoice, meter reading or supplier record behind it.

  • Every entry links to its source activity data and emission factor version
  • Factor libraries are versioned, so restatements are explainable
  • Scope 3 categories are modelled explicitly rather than lumped into an estimate
  • Multi-entity and multi-currency consolidation with a clear organisational boundary
  • Exports mapped to GHG Protocol, CDP, BRSR, GRI and TCFD line items

Capabilities

What the platform does

  • Activity data ingestion

    Connect ERP, utility and travel data, or upload structured files with validation on import.

  • Versioned factors

    Regional and year-specific factor sets, with a record of which version produced which figure.

  • Scope 3 modelling

    Spend-based, average-data and supplier-specific methods per category, mixed as your data allows.

  • Audit trail

    Drill from a headline total to the underlying record without leaving the platform.

  • Target tracking

    Track performance against your baseline and interim targets as actuals land.

  • Disclosure exports

    Generate framework-shaped outputs instead of rebuilding tables for each questionnaire.

Implementation

Live in weeks, not quarters

  1. 01

    Define the boundary

    Agree organisational and operational boundaries, entities and the reporting calendar.

  2. 02

    Connect data

    Wire up source systems and map activity types to the right calculation methods.

  3. 03

    Validate the baseline

    Reconcile the first full period and resolve gaps before the number is used anywhere.

  4. 04

    Operate

    Move to a recurring close, with variance checks and disclosure exports each cycle.

Questions

About the platform

  • Will this satisfy limited assurance?

    The platform is built to support it — every figure retains its calculation lineage and source evidence. Assurance outcomes still depend on your underlying data quality and your assurance provider.

  • What if our Scope 3 data is poor?

    That is normal at the start. We begin with spend-based estimates to size each category, then replace the material ones with supplier-specific data over time.

  • Can we keep our existing factor sets?

    Yes. Custom and internally approved factor libraries can be loaded alongside standard regional sets.

Start your climate transition

Talk to our team about where you are today and the fastest credible route to your targets.

  • No obligation
  • Response within 2 working days
  • NDA on request