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The use of fuel cell electric vehicles (FCEV) powered by
hydrogen has the potential to replace fossil fuelled vehicles. As a result the UK
H2Mobility project predicts that there
could be over 1.6 million such vehicles in the UK by 2030 supported by 1,150
FCEV do not produce any emissions, however the production
of hydrogen through electrolysis requires electricity. For
FCEV to be a viable alternative to fossil fuel or electric vehicles a reliable
method of production and supply of high purity hydrogen will be required. Electrolysers can help provide that reliable
method of production and UK H2Mobility suggest that 51% of the
required hydrogen will be produced by electrolysers by 2030. This could create an additional annual energy
demand of up to 9,000 GWh across the UK; this is the equivalent of 12 times the
annual domestic electricity use in Liverpool. It could also potentially increase the national peak network load by
1GW. As a result significant network
reinforcement could be required. This project is investigating how the impact
of this potential energy requirement could be minimised to avoid network
reinforcement which is both a costly and time consuming solution.
In addition, if the electricity used by the electrolyser
can be obtained from renewable sources there is further significant opportunity
to reduce carbon emissions throughout the UK. In the Scottish and Southern Electricity Networks area there is a continued
appetite to connect renewable generation. However, some connections cannot be progressed without significant
reinforcement on account of limitations in the existing network. The Scottish Government has set ambitious targets to
provide 80% of electricity from renewable sources by 2020. Electrolysers could potentially offer
significant benefits by providing grid-balancing services to enable more
renewable generation where the existing network is constrained. Therefore, the ability for large electrolysers
to be integrated with renewable technologies needs to be understood.
This project supports the Aberdeen
Hydrogen Bus Project where 10 FCEV buses (currently the largest fleet of FCEV buses in
the UK) are operating. The buses are
fuelled from a state of the art refuelling station with a 1MW on-site
electrolyser in Aberdeen. The
electrolyser is controlled by a simulation system that issues control signals
to trial a number of commercial operational strategies based upon the above
issues. The project will analyse the
results from these trials and evaluate their performance to identify any
additional value electrolysers could provide to electricity distribution
Scottish and Southern Electricity Networks are pleased to announce the publication of our report into the Impact of Electrolysers on the Distribution Network.
detailed report considers the potential implication to distribution networks
across the UK, and follows the suggested roll out of a hydrogen fuel
infrastructure as detailed in the H2
The UK's first hydrogen production and bus refuelling station in Aberdeen has reached a major milestone – its 1,000threfuel.
Read the latest news from the
Scottish Hydrogen and Fuel Cell Association
Read the latest from the European Hydrogen Association.