Presentation on theme: "Mod 373 “Governance of NTS Connection Processes”"— Presentation transcript:
1Mod 373 “Governance of NTS Connection Processes” Review Group August 2010WG0508: Feasibility Study Report – Contents
2Background (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 requiredFeasibility Studies may be requested by customers on an ‘optioneering’ basis; can therefore be speculativeThe current Feasibility Study Agreement does not confer any obligations on either party to develop or modify an NTS connectionNational Grid does not generally require a Feasibility Study to be undertaken where the customer requires a new NTS connection in a ‘greenfield’ site
3Background (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 1974Pipeline Safety Regulations (PSR) 1996Reg 5 – design of a pipelinePressure Systems (Safety) Regulations (PSSR) 2000Imposes 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
4Feasibility Study - Contents (1) Contents of a feasibility study report depend on the nature of the study being undertakenExample content headings for a power station ramp rate study:IntroductionThe ModelScenarios ModelledConclusions
5Feasibility Study - Contents (2) Example content headings for increase in offtake pressure where NGG owns the metering installation:IntroductionBackgroundFiltersMeteringGas Pre Heat SystemFuel Gas Skid UnitRegulator ArrangementTransient StudyConclusions and Recommendations
6Feasibility Study - Contents (3) Example content headings for new connection at large, complex existing site:Executive Summary & IntroductionCodes of Practice & LegislationNational Grid Site FacilitiesDesign ParametersNew ConnectionMechanical DesignGas Flow and Isolation Valves ConfigurationCorrosion ProtectionElectrical and InstrumentationDescription of Equipment and DevicesCrossing and Installation Techniques
7Feasibility Study - options Standalone – as isCombined with Conceptual Design Study (CDS) – does not include final detailed design and constructionreview the use and purpose of the CDS in order to achieve thisOthers?