UK CBAM Supplier Verification — Hydrogen

Hydrogen exporters and UK CBAM

Hydrogen falls under UK CBAM from 1 January 2027, whatever the production route. Grey, blue and green hydrogen carry fundamentally different embedded emissions, and that difference only reaches your buyer's charge if it's verified.

Credentials
AISEP One Click LCA certified PRINCE2 certified RICS WLCA & PAS 2080 aligned

What makes hydrogen different under CBAM

Steam methane reforming without capture, reforming with carbon capture, and electrolysis represent three distinct emissions profiles for what is, on paper, the same product. A default value set at a country and sector average has no way of distinguishing between them.

If your production is genuinely lower carbon than your country's average, whether through carbon capture or a renewable electricity source, that's a real, verifiable advantage. It just doesn't show up automatically, someone has to supply the data.

1 Jan 2027
UK CBAM in force
£50,000
Importer threshold, per year
Production route
What drives your number

What we ask for

The specific data that actually moves your embedded emissions figure, rather than a generic questionnaire:

  • Production method: steam methane reforming (grey), reforming with carbon capture (blue), or electrolysis (green)
  • Electricity or natural gas source and consumption per unit of hydrogen produced
  • Carbon capture rate, where applicable
  • Any carbon price already applied to production at origin

Prefer a document to send your own suppliers or production team? Download the full data checklist (PDF), it covers every CBAM sector on one sheet.

Common questions

Does blue hydrogen automatically get a lower charge than grey?

Only if the carbon capture rate is verified and reported. Without that data, a default value assigned to the country and sector average won't distinguish blue from grey hydrogen.

How is hydrogen measured for this purpose?

By production method and the energy source behind it, converted into an embedded emissions figure per unit of hydrogen for the specific product exported, confirmed on a discovery call against what data you already hold.

Verified at the source, not assumed at the border.

A discovery call to confirm product lines, production routes, and who we're working with, supplier, importer, or both.