Documents
FEM 2025 Energy Source Changes
A detailed summary of the changes in energy calculations, including emission factors, between FEM 2024 and FEM 2025.
FEM 2025 Energy and Global Warming Calculations
How the in-assessment Higg FEM 2025 energy and greenhouse gas calculations work: the answers they read, the energy densities and emission factors they apply, and the aggregates they produce.
FEM 2025 Water and Waste Calculations
How the in-assessment Higg FEM 2025 water and waste totals are calculated: the answers they read and the aggregates they produce.
Reference data
Question and answer reference (xlsx) (xlsx)
Every question, answer option, score and critical issue of Higg FEM 2025 in this version, with ref_ids, as a spreadsheet.
Question and answer reference (json) (json.gz)
The same reference as gzipped JSON, with a schema describing the fields.
Published 11 September 2026.