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Carbon Accounting in the UK Water Industry: Guidelines for Dealing with 'Embodied Carbon' and Whole life Carbon Accounting

Price: £1000


Ref: 08/CL/01/6
ISBN: 1 84057 495 X

This project is one of a suite of UKWIR projects carried out to provide guidance for the UK water industry on carbon accounting.
The purpose of the project report is to provide clear guidelines for UK water companies to estimate the carbon embodied in construction and to carry out whole life carbon accounting for investment selection, including planning for PR09 and more detailed project option appraisals. The document builds on separate UKWIR guidance for operational emissions (08/CL/01/5).
The report contains: guidelines on setting boundaries for whole life carbon accounting; guidelines on estimating embodied carbon; recommended emission values for some typical construction work items; guidelines on deriving whole life carbon costs; and information on icluding some additional operational emissions. Application of the guidelines is illustrated by a working example and some case studies.
The guidelines are based on the pragmatic principle that whole life carbon accounting should follow the same principles as cost accounting and, as far as possible, use the same asset input data. Accounting boundaries for whole life carbon costing follow the same rules as those for Capex and Opex costing.
Because companies have varied expertise, the guidelines for embodied carbon estimation can be used in different ways. They are set out to enable companies to develop their own tools to suit their critical asset types and cost estimating frameworks.
The guidelines will support UK water companies in complying with Ofwat's requirements fro reporting and cost-benefit analysis. They promote an integrated approach to investment selection by setting out principles for non-financial analysis of whole life carbon costs.
It is expected that the guidelines will be reviewed and updated in future to reflect advancements in the science of carbon accounting.

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