The Port are working in partnership with National Grid Gas Transmission for an innovation project submitted for Funding under the Network Innovation Competition 2016. The project is expected to utilise renewable generation from the Port’s 5MWp solar farm to produce hydrogen, for storage and to demonstrate the flexibility of hydrogen as an energy carrier, relieving grid constraints and enabling more generation onto an alternative energy network that address’ the UK’s carbon plan.

1. Network Innovation
Competition 2016
Hydrogen Injection
Tim James
Port of Milford Haven
Tamsin Kashap
National Grid

2. An
opportunity
created
by a
pipeline

3. A project that brings
together… National Grid

4. and the Port of Milford Haven
1
37.8
-20
10,000
30
UK’s largest energy port
% of UK’s gas demand can
be supplied by Milford Haven
m tonnes cargo volume in 2015
UK jobs supported by the Haven
tCO2e

7. Electric grid issues resulting
from renewables
investment South Wales

8. Focusing on how
to bring energy
renewable
resource
To where it is
most needed
When it is
most needed

9. This is where the pipeline
opportunity comes in…

10. National Grid Gas Network

11. Network
Innovation
Competition

12. Hydrogen Injection
Project
A catalyst to drive industry change,
delivering standardisation to this type
of customer connection.
To realise the full potential of
hydrogen injection into the high
pressure gas grid.
A UK first.

13. A standardised approach to
customer connections of this type
and will consider the elements
required for a replicable hydrogen
injection solution:
1
2
3
Single Connection with
bi-directional flow
Dual Connection
Direct Injection
Technical Standards
Assessment
Engineering Solution
Commercial & Charging
Models
3 possible Engineering Solutions to be
considered as part of Final
Submission development:

14. Partner Project Role
National Grid Gas Transmission: Network lead for the ‘Hydrogen Injection’ aspect
of the project.
MHPA are managing the ‘Hydrogen Production’ aspect of the project
independently to NIC funding, which will produce hydrogen via the ‘Power to Gas’
process, for injection into the NTS.
Costain and Macaw : Engineering consultant, providing the skills and expertise
required in assessing the engineering options.
Appointed by MHPA as the Hydrogen Technology Partner, responsible for
developing and implementing the hydrogen production element of the project.
In partnership with MHPA, dissemination of the learning objectives will be
supported by Cardiff University.
Project Partners

15. Electrolyser
< 0.1% H₂
Within
GSMR
compliant
gas
GSMR
compliant
gas
Pressurisation to ≈ 90 Bar
H₂
Biogas of methanated CH₄
Connection
from
Substation
11 / 33KV
Blending /
Storage
Storage for daily
production
500 kW
H₂ Fuel cell
Electrolyser Expansion
Proposed hydrogen production
and injection site

17. Electrolysers
Water processing
Compression and storage
Fuel cells
Transformers and distribution

19. However…
Technical
Issues
Commercial
Issues

20. Tech Gap Analysis
Limited work needed
Internal coatings
Domestic burners
Efficiency of odorants
Some further work needed
Performance and degradation of
polymer & elastomeric materials
Materials permeability
Metering and compositional
analysis
Combustion properties
Pressure/flow complications
Compression and regulation
Detection
Repair methods
Fire & explosion risks
Formation of hazardous areas &
ignition risk
Electrostatic charges
Significant further
work needed
Hydrogen embrittlement of
steel pipe
Hydrogen assisted fatigue,
stress cracking & enhance
crack growth on existing
defects
Crack propagation & fracture
mechanics
Welding requirements
Gas quality
Gas turbines
Gas engines
Commercial boilers
Storage

21. Commercial challenges to
overcome
Overcoming the
percentage by
volume of hydrogen
permissible within
the gas network as
set out in the Gas
Safety Management
Regulations
Subsidy Regime i.e. RHI
of CfD that would pay
the generator the
difference between their
‘strike price’ (as
determined via an
auction) and a ‘market
reference price’ for gas
(not electricity), which
currently does not exist.
To achieve the correct
hydrogen- natural gas
mixture, a commercial
solution to allow for
direct injection would be
assessed as an
alternative to the
Production Facility
buying the natural gas at
retail cost and sell the
comingled product back
at wholesale.
1 2 3

22. Next Steps…Watch and Learn
Hydeploy: an off grid demonstration that natural gas containing levels of hydrogen can be distributed
and utilised safely & efficiently in a representative section of the UK distribution network.
Leeds Citygate: a study to determine the feasibility of converting the existing natural gas network in
Leeds to 100% hydrogen.
Flexis: a project looking at developing new ways of managing future energy systems meet the diverse,
complex and inter-dependent challenges that arise when new sources of energy are integrated into the
grid. by suppliers.

23. 3
4
2
1
Haven Energy Bridge
Multi-million pound
retail and leisure
development, Milford
Waterfront
5MW Liddeston
Ridge Solar Array
Anaerobic
Digestion plant
Milford
Smart
Grid
1
2
3
4

24. The Carbon Plan identifies the need to ‘deliver between
83-165TWh of low carbon heat’ by 2030. The RHI (Dom
& Non-Dom) delivered less than 4.5TWh in 2015 and
DECC (2016) anticipates ‘that by 2020/21, the RHI could
deliver 23.7TWh of renewable heat.’
A step change is required to meet low carbon heat
commitments.
https://www.ofgem.gov.uk/publications-and-
updates/smart-flexible-energy-system-call-evidence
Policy Context - the Carbon Plan

25. For more information
Tim James
Energy Manager
Port of Milford Haven
tim.james@mhpa.co.uk
Tamsin Kashap
Gas Transmission Innovation Manager
National Grid
tamsin.kashap@nationalgrid.com