Haven Energy Bridge – Electrolysing Renewable Generation to Inject Hydrogen into the NTS
25
Network Innovation Competition 2016 Hydrogen Injection Tim James Port of Milford Haven Tamsin Kashap National Grid
Transcript of Haven Energy Bridge – Electrolysing Renewable Generation to Inject Hydrogen into the NTS
Network Innovation Competition 2016
Hydrogen Injection
Tim James Port of Milford Haven
Tamsin Kashap National Grid
An
opportunity
created
by a
pipeline
A project that brings together… National Grid
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
Electric grid issues resulting from renewables investment South Wales
Focusing on how to bring energy renewable resource
To where it is most needed
When it is most needed
This is where the pipeline opportunity comes in…
National Grid Gas Network
Network Innovation Competition
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.
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:
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
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
Electrolysers
Water processing
Compression and storage
Fuel cells
Transformers and distribution
However…
Technical
Issues
Commercial
Issues
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
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
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.
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
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
For more information
Tim James Energy Manager
Port of Milford Haven
Tamsin Kashap Gas Transmission Innovation Manager
National Grid
