Stop building Walmart Gigaton reports in spreadsheets. Emissa imports your QuickBooks data, maps every Scope 1, 2 & 3 category, and generates a Giga Guru-ready submission — complete with emission factor documentation and audit trail.
Walmart's Project Gigaton is one of the largest private-sector sustainability mandates in the world. It requires all Tier 1 suppliers to report annual emissions data across Scope 1, 2, and 3 — categorized by GHG Protocol standard. Suppliers who submit complete, documented data can achieve Giga Guru status (Bronze, Silver, or Gold). Those who don't risk losing Preferred Supplier standing.
Fleet fuel consumption, on-site natural gas, refrigerant losses, manufacturing process emissions. Walmart expects documented energy consumption data with source verification.
Electricity, steam, and heating purchased from utilities. Emissa uses EPA eGRID regional grid factors so your Scope 2 calculation is regionally accurate, not a national average.
The largest emissions bucket and the hardest to calculate. Categories 1 (purchased goods), 4 (upstream transportation), and 5 (waste) are the primary focus areas for food and CPG suppliers.
Gold-level submissions require emission factor sourcing, methodology transparency, and a data quality narrative. Emissa's output includes all three — generated automatically from your QuickBooks data.
No ESG team required. No consultant engagement. No spreadsheet wrestling.
Download the standard transaction detail report from QuickBooks Online or Desktop. Upload it to Emissa. The import process handles column formatting automatically.
Emissa maps each GL code to the correct GHG Protocol Scope 3 category using your industry, spend patterns, and EPA factor library. Review and correct any edge cases — most users spend under 5 minutes here.
Select "Walmart Project Gigaton" format. Emissa produces a complete, audit-ready submission with Scope 1, 2 & 3 totals, factor sources, methodology documentation, and a SHA-256 report fingerprint for verification.
Send your Walmart procurement contact a secure verification link. They can confirm report authenticity and mark it verified — without you sending an Excel attachment.
Everything you need to know about Walmart Gigaton reporting with Emissa.
Walmart's Project Gigaton requires Tier 1 suppliers to report Scope 1, 2, and 3 emissions data annually, categorized by GHG Protocol framework. Suppliers are rated on a Giga Guru scale — from Registered to Gold — based on the quality and completeness of their submissions.
You upload your QuickBooks transaction export to Emissa. The platform automatically maps each GL code to the correct GHG Protocol category, applies EPA emission factors (eGRID, GHGRP, USEEIO), and generates your Scope 1, 2 & 3 totals in the exact format Walmart requires. The full report is ready in under 30 minutes.
Walmart's annual Gigaton reporting window typically opens in Q1. Suppliers who miss the window risk losing Preferred Supplier status. With Emissa, you can generate a complete report in a single session — no consultants or spreadsheets required.
Yes. Emissa covers all 15 GHG Protocol Scope 3 categories, including purchased goods and services (Cat 1), transportation and distribution (Cat 4), and waste (Cat 5) — the categories Walmart focuses on most heavily for manufacturing suppliers.
Emissa's output includes emission factor documentation, methodology notes, and a SHA-256 report fingerprint — the documentation depth that separates Gold applicants from Registered. A complete, auditable submission demonstrates the data quality Walmart looks for in top-tier suppliers.