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Packaging bio-methane connections for the futureDan Anderson CEng11th January 2012

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The context

Utility bespoke design and build delivery model needs to evolve for the growth of renewable gas connections – approximately 250 biomethane injection plants will be required by 2020 to meet UK renewable energy targets.

Current approach:

Design and build cost is circa £650k for the injection plant (excluding connecting pipe and remote monitoring).

Lead time circa 12 months design and build (excluding remote monitoring point and remote monitoring).

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The requirement

Need a pre-approved packaged design for biogas connections with suppliers on a call off contract to provide the built units to site

Key components:

1. Develop a fit for purpose cost-effective engineering specification for a packaged solution.

2. Develop a tender to source suppliers who can provide pre- approved packaged designs to meet the specification, which they can supply to site ready built.

3. Allow the concept to be future-proofed as ownership may not be with the GDN and regulatory requirements will change.

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The scope of the basic package

Instrumentation linksPressure

Reduction

Gas Analyser

Fiscal Metering

Odorant Injection

Electrical transformer and electrical distribution system

Process Shut down valve Housing for the unit /

component parts

Gas produced by biomethane producer clean

up plant (to include propane

enrichment)

FWACV Gas Quality and supervisory

system Gas Grid

Downstream remote

monitoring option

DB1Telemetry Unit

To Control Centre

To Bio Methane producer

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Approach to a packaged design

Basic packaged approved design (G19)

Mechanical Electrical Instrumentation Software (approach)

Site specific design (G17)

TelemetryCivil

Site specific software

TD/13

Industry Standards

Company policies derived from Electricty at Work Regulations and British

Standards

User requirements specification / Functional Design / Software

Design Spec, Test Procedures, Functional Blocks

FWACV

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The journey to a packaged solution

Contract award

Bid for first call off

Build procurement strategyWork with Multi-disciplined engineering

team – identify the sub systems and draw out the key requirements for each

Engineering Integrity sign onIssue full tender

Provide technical guidance and

manage the input of technical

experts to ensure the needs of the

application are met

Manage technical issues with suppliers input into design

development

Build support for the concept

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How the call off arrangement will work

New connection

Supplier 2

Supplier 3

Supplier 4

Supplier 1

Complete telemetry / civil / pipework design

Mini tender

Select supplier

Gas quality assessment

Hazop with chosen supplier

Call off Contract

Supplier to produce site specific design amendments

to basic package

Unit built

Install and commission

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Integration into the future

Biogas Clean up PRS Vol.

Meter GC

Gas GridFWACV configurable

supervisory and control system

Odour

DB1 Telemetry GDN(Logic Control) DNCC

DFO GDN

Odour

DFO GDN

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The outcomes

Packaged designs which can operate over the following operating conditions:

Pressure

Max inlet of 7 bar and Min outlet of 75mb

Flow

20m3/h - 2000m3/h

Size

Equal in scale to a shipping container

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The outcomes

Substantial cost saving

Lead times of 5-6 months (for supply to site)

Four suppliers are involved in the tender who can now be approached by DFOs/other GDNs should they wish to purchase a packaged unit.

Technica Ltd

Elster-Instromet

Orbital Gas Systems

Biogast/Future Energy Group Ltd

The work puts in place a platform for the industry to build from into the future.

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Thank you

Any questions ?