Asset Health Modelling: Final Report

Abstract:

<p>This document is a closedown report for the project titled 'Asset Health Modelling'.</p> The scope of this project includes a gap analysis and development of proof of concept model, to be executed in the following steps: <bl> <li>CBRM Audit across two asset categories</li> <li>Gap Analysis - RIIO GD1</li> <li>Roadmap plan for 2013 submission</li> <li>Commencement of CBRM excel model</li> <li>Completion of CBRM excel model (District Governors) (Pressure Reduction Installations)</li> </bl> </br> <p>The objective of this project is to develop a Condition Based Risk Model (CBRM) that will determine the future health index of National Grid Gas Distribution's governors and pressure reduction assets in order to prioritise future investment decisions. The CBRM tool will allow the future Health Index (HI) and Probability of Failure (POF) of these assets to be simulated and assessed. This will enable understanding of asset condition and criticality, identifying and modelling different interventions to mitigate risk, and prioritise and select optimal expenditure via a condition based risk approach.</p> <p>A CBRM model for a single asset group (District Governors) has been developed in order to provide National Grid the opportunity to understand the CBRM process. The District Governor CBRM model incorporates the factors that NGG consider to be relevant in terms of their impact on the health, criticality and risk of their District Governors, including asset age, expected service life, situation, location and duty and environment.</p> This report covers the project's: <bl> <li>Scope</li> <li>Objectives</li> <li>Success Criteria</li> <li>Performance Compared to the Original Project Aims, Objectives and Success Criteria</li> <li>Required Modifications to the Planned Approach During its Course</li> <li>Lessons Learnt for Future Projects</li> <li>Outcomes</li> <li>Planned Implementation</li> </bl>

Author(s):

National Grid Gas Distribution