Standards Development

Scope

This document considers the GHG emissions associated with the storage, transport, and release of hydrogen via LOHC. This document applies to and includes every step within the scope of storing, transporting, and releasing hydrogen via LOHC within a hydrogen supply chain (see Figure 2 in the Introduction).

According to ISO 14040:2006, Annex A2, the goals and scope of LCAs correspond to one of the following two approaches: The goals and scopes of the methodologies correspond to either approach a) or b), given below, that iso:proj:37456ISO 14040:2006, Annex A2 gives as two possible approaches to LCA.

a)       An approach that assigns elementary flows and potential environmental impacts to a specific product system, typically as an account of the history of the product. See Section 4.1.2.

b)       An approach that studies the environmental consequences of possible (future) changes between alternative product systems. See Section 4.1.3.

In this document, approach (a) is referred to as an attributional approach, while approach (b) is referred to as consequential approach. Complementary information is accessible in the ILCD handbook [1].

A carbon footprint of a product CFP or partial CFP as defined by ISO 14067 may be estimated using either the attributional or the consequential approach, the latter corresponding to the use of “system expansion via substitution” to avoid allocation when a unit process yields multiple co-products. This document applies to the partial CFP for the storage, transport, and release of hydrogen via LOHC.

Complementary documents in the ISO 19870-X series will consider hydrogen production and other conditioning, conversion and transport methods.This document considers the GHG emissions associated with the storage, transport, and release of hydrogen via LOHC. This document applies to and includes every step within the scope of storing, transporting, and releasing hydrogen via LOHC within a hydrogen supply chain (see Figure 2 in the Introduction).