Measuring CO2

This section provides an overview on how to estimate
the CO₂ (or CO₂ equivalent) emissions savings from a
projectgenerating or saving electricity. This document
only provides a brief overview of calculating
carbon reductions and does not attempt to give full
guidance that addresses all possible low carbon
applications and processes. For more detailed analysis
and guidance, please refer to our list of recommended
websites.

The Carbon Trust will use CO₂ as the standard reporting unit
when measuring emissions. This is to avoid confusion as some
schemes report the amount of Carbon (C) emitted rather than
CO₂(note: 1tonne C=3.66 tonnes CO₂). For projects which
propose to reduce the emissions of gases other than CO₂, the
reporting unit will be CO₂ equivalent (CO₂e) (see
Green House Gas conversion section for conversion guidelines).

The Carbon Trust will be focusing on low carbon and energy
efficient technologies rather than specific carbon abatement
projects and therefore, emission reduction levels will be based
on estimated levels of application of these technologies.
As a guide to assessing the reduction potential of a technology,
the Carbon Trust will refer to existing methodologies as
reference material.