From 2027, RE100 requires that all renewable electricity purchased from the grid in markets where Energy Attribute Certificates are in common use must be tracked with energy certificates. In New Zealand, this means using the BraveTrace NZECS. RE100 confirms that claims backed by NZ-ECs (New Zealand Energy Certificates) provide the highest level of credibility. For more details, see pages 15 and 32 of the RE100 2025 Technical Criteria. The RE100 Technical Criteria are the rules that members must observe when procuring renewable electricity and reporting progress against RE100 targets. It also serve as a guide for any corporate buyer seeking to make credible renewable claims.
3 Sep 2025