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Mod 373 “Governance of NTS Connection Processes” Review Group 029111 August 2010 WG0508: Feasibility Study Report – Contents.

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Presentation on theme: "Mod 373 “Governance of NTS Connection Processes” Review Group 029111 August 2010 WG0508: Feasibility Study Report – Contents."— Presentation transcript:

1 Mod 373 “Governance of NTS Connection Processes” Review Group August 2010 WG0508: Feasibility Study Report – Contents

2 Background (1)  Feasibility Studies are invariably bespoke in nature in order to fulfil the customer’s requirements - dependent on the location and type of NTS connection required  Feasibility Studies may be requested by customers on an ‘optioneering’ basis; can therefore be speculative  The current Feasibility Study Agreement does not confer any obligations on either party to develop or modify an NTS connection  National Grid does not generally require a Feasibility Study to be undertaken where the customer requires a new NTS connection in a ‘greenfield’ site

3 Background (2)  National Grid is required to adhere to statutory legislation and has legal obligations in relation to the NTS connections process:  Health and Safety at Work Act 1974  Pipeline Safety Regulations (PSR) 1996  Reg 5 – design of a pipeline  Pressure Systems (Safety) Regulations (PSSR) 2000  Imposes a duty on designers, manufacturers etc to ensure systems are fit for purpose so as to prevent danger (Reg 4)  Responsibility on National Grid to ensure Safe Operating Limits (SOL) on our customers’ and our own equipment are not exceeded

4 Feasibility Study - Contents (1)  Contents of a feasibility study report depend on the nature of the study being undertaken  Example content headings for a power station ramp rate study:  Introduction  The Model  Scenarios Modelled  Conclusions

5 Feasibility Study - Contents (2)  Example content headings for increase in offtake pressure where NGG owns the metering installation:  Introduction  Background  Filters  Metering  Gas Pre Heat System  Fuel Gas Skid Unit  Regulator Arrangement  Transient Study  Conclusions and Recommendations

6 Feasibility Study - Contents (3)  Example content headings for new connection at large, complex existing site:  Executive Summary & Introduction  Codes of Practice & Legislation  National Grid Site Facilities  Design Parameters  New Connection  Mechanical Design  Gas Flow and Isolation Valves Configuration  Corrosion Protection  Electrical and Instrumentation  Description of Equipment and Devices  Crossing and Installation Techniques

7 Feasibility Study - options  Standalone – as is  Combined with Conceptual Design Study (CDS) – does not include final detailed design and construction  review the use and purpose of the CDS in order to achieve this  Others?


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