Carbon Shipyard

The carbon of building the ship — not sailing it. Track the embodied CO₂e of a hull stage by stage, from steel cutting to sea trials, and get a defensible footprint per vessel.

Design-partner stage. The engine is built and tested; we are looking for the first shipyards and naval builders to shape it around their build process. This is a distinct service from Carbon Accounting and Carbon EU — those account for the emissions of running a business; Carbon Shipyard accounts for the embodied carbon of the product you build.

Why a shipyard needs it

A vessel is thousands of tonnes of steel and aluminium, kilometres of weld, tonnes of coatings and a great deal of yard energy — each carrying embodied carbon. Owners, class societies and defence procurement increasingly ask for that number. Carbon Shipyard produces it from your own build records, with every factor traceable to a published source.

The whole shipbuilding process, modelled

• Every project is created with the full 13-step shipbuilding sequence — design, steel cutting, block fabrication, assembly, coating, keel laying, hull erection, outfitting, mechanical & electrical fitting, launch, commissioning, sea trials and delivery — each a tracked stage

  — the same work-breakdown your yard already runs to.

• Surface vessels, submarines and special craft are first-class vessel types, each with its principal particulars — gross tonnage, length and hull material

  — submarines included, down to a pressure-hull special-steel factor.

• Each stage advances through its own status — not started, in progress, completed or skipped — so the footprint can be attributed to the exact step that produced it

  — you see which stage of building the hull emitted the most.

A factor library you can defend in an audit

• A cradle-to-gate factor library ships with the product — shipbuilding steel, submarine HY-100 steel, marine aluminium, copper, coatings, welding, cutting, yard electricity and inbound freight

  — the common inputs of a yard, ready on day one.

• Every factor carries mandatory provenance — the source institution, a direct link and a document reference — so an assurance provider can trace each value

  — no black-box numbers.

• Your own supplier EPD overrides the library default deterministically — a supplier-specific factor beats a tenant factor beats the shared library

  — swap in a real steel mill's declared figure whenever you have one.

A footprint per hull, not a spreadsheet

• Recorded material and energy consumption goes through a review queue before it counts — approved, then posted; rejected quantities are kept for audit but post nothing

  — a reviewer signs off before a number enters the ledger.

• The vessel footprint is computed as quantity × factor, rolled up to a total, split by manufacturing stage and by input category, plus a carbon intensity per gross tonne

  — one number for the owner, and the breakdown behind it.

• Postings are append-only — a correction is a new entry that references the one it restates, and the original is never overwritten

  — the footprint history is preserved and auditable.

• Every project, stage and posting is scoped to your yard from your signed-in identity — never from the request

  — your build data stays yours.