Haydale Graphene Industries PLC National Grid benefit analysis
15 Mai 2019 - 9:23AM
RNS Non-Regulatory
TIDMHAYD
Haydale Graphene Industries PLC
15 May 2019
For immediate release 15 May 2019
Haydale Graphene Industries plc
('Haydale' or the 'Group')
National Grid benefit analysis shows high level of confidence in
Haydale's composite transition piece
Haydale (AIM: HAYD), the global advanced materials group, has
been working with National Grid to calculate the benefit case of
its Composite Transition Piece (CTP), using a method developed by
National Grid and verified by PwC during a previous audit.
This approach provides a risk rating for the benefits. In this
case the risk was assessed by National Grid as 'low', meaning that
National Grid can have a high level of confidence in the results it
will achieve.
There are around 300 locations on the National Transmission
System where gas pipes pass through reinforced concrete walls, for
example into valve pits. Currently, several types of seal are used
to prevent contamination by water or soil, but when these seals
fail technicians face a major task to fix the problem.
National Grid has found that Haydale's CTP represents a huge
step forward in safety and efficiency, solving a major problem for
the national gas transmission network at a reduced cost over the
systems life-time. The solution allows easy access to transition
pipes at pit wall transitions for inspection and maintenance.
Working in conjunction with National Grid, the innovative CTP seal
units can be used to plug the gap between the pipe and the wall. It
means that technicians can easily remove the unit and check the
pipe for corrosion or damage. The CTP can then be replaced quickly
in one simple operation.
Financially, the benefits of installing a CTP are significant
especially when viewed over the entire design life of the unit.
Taking less time to inspect the pit wall area with a CTP fitted
means that just under GBP230k could be saved over a design life of
50 years per unit installed. This is comparing an inspection using
the traditional methods with the composite solution.
In addition to the cost benefits, National Grid estimates that
700 fewer hours of 'at risk' activities will be needed for each CTP
during its design life. Working on the pit wall requires
technicians to work inside a pit which may be several meters deep.
Benefits can be tracked after the first inspection and continue for
the entire design life of 50 years per unit, this can subsequently
be extended further following a simple replacement of the seal
around the CTP.
There are also environmental benefits and National Grid have
calculated that the new approach will save 12 tonnes of carbon
equivalent (CO2e) for each CTP over its 50-year lifespan. This is
determined by examining tasks such as excavating soil to expose the
pit wall and generator power needed on site for the duration of the
works
Two key compressor sites have already undergone large-scale
works where National Grid have utilised the new CTPs. In total,
eight new CTPs have been pre-fabricated and will be installed
during the construction of the pit wall, further reducing
installation costs. These units, along with one that was installed
as part of the original trial, will start to provide benefits after
their first inspections.
David Banks, Chairman at Haydale, commented: "With 9 CTPs
planned for installation by the end of 2019, we look forward to
seeing the benefits realised by National Grid. We look forward to
continuing our work with the utilities industry, where the benefit
of both composite materials and graphene are now being
appreciated."
Keith Broadbent, CEO at Haydale, commented: "Haydale is pleased
to be working with National Grid on this system which is a huge
step forward in safety and efficiency for the gas network. With
GBP228,000 average savings per CTP design life and 700 fewer hours
carrying out 'at risk' activities for each CTP over 50-year period,
it is clear to see the benefit that the system offers to the
customer. We look forward to working with gas infrastructure owners
worldwide who can also benefit from the product."
Paul Ogden, Senior Civil Engineer at National Grid, commented:
"Over a six-year period, National Grid expects to install about 60
CTPs on the National Transmission System. This will significantly
improve safety as well as creating savings of up to GBP5 million in
the next five to 10 years."
- Ends -
For further information:
Haydale Graphene Industries plc
Keith Broadbent, Haydale CEO Tel: +44 (0) 1269 842 946
Gemma Smith, Head of Marketing www.haydale.com
Arden Partners plc (Nominated Adviser
& Broker) Tel: +44 (0) 20 7614 5900
Ruari McGirr / Paul Shackleton /
Ben Cryer
Notes to Editors
Haydale is a global technologies and materials group that
facilitates the integration of graphene and other nanomaterials
into the next generation of commercial technologies and industrial
materials. With expertise in graphene, silicon carbide and other
nanomaterials, Haydale is able to deliver improvements in
electrical, thermal and mechanical properties, as well as
toughness. Haydale has granted patents for its technologies in
Europe, USA, Australia, Japan and China and operates from six sites
in the UK, USA and the Far East.
For more information please visit: www.haydale.com
Twitter: @haydalegraphene
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END
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