EMEC has generated green hydrogen gas demonstrating potential for a clean replacement for polluting fuels
The European Marine Energy Centre (EMEC) has produced hydrogen gas using electricity generated from tidal energy in Orkney.
This is the first time that hydrogen has been created from tidal energy anywhere in the world.
The first tidal-powered hydrogen was generated by EMEC on Friday 25th August 2017.
By harnessing the power of the tide at EMEC’s tidal energy test site at the Fall of Warness, Eday, Orkney, prototype tidal energy converters – Scotrenewables’ SR2000 and Tocardo’s TFS and T2 turbine – fed power into an electrolyser situated next to EMEC’s onshore substation.
Supplied by ITM Power, the electrolyser uses the electricity to split water (H2O) into its component parts – hydrogen (H2) and oxygen (O2).
The electrolyser is housed in a standard 20’ by 10’ ISO container with hydrogen generation capacity of up to 220kg/24hours.
EMEC’s investment in hydrogen production capability has been made possible by funding of £3 million from Scottish Government, made available through Highlands and Islands Enterprise.
Scottish Minister for Business, Innovation and Energy Paul Wheelhouse said: “The Scottish Government is pleased to be supporting this innovative project which will help to partially overcome grid constraints in the Orkney Islands by enabling the storage of excess tidal power generated and using that electricity to produce hydrogen. The project also adds to our growing understanding of the potential role of hydrogen in Scotland’s future energy system – something we have committed to exploring in our draft Energy Strategy.”
Neil Kermode, Managing Director of EMEC, said: “The electrolyser was set up to pilot the production of hydrogen fuel from tidal energy – and now we’ve done just that. This is a tremendous milestone for us and thanks must go to EMEC’s staff, the Scottish Government, Highlands and Islands Enterprise, ITM Power and Bryan J Rendall Electrical for helping make this happen.
“Whilst the initial driver behind buying an electrolyser was to provide a storage solution to circumvent local grid constraints, the purchase has sparked off other pioneering projects around Orkney looking to use hydrogen in various means. So we’re now looking towards the development of a hydrogen economy in Orkney.
“One of the most promising uses of hydrogen is as a fuel for transport as it emits no carbon when it is consumed and, providing it’s generated by clean renewable energy sources, it becomes a carbon neutral fuel source. Therefore, we could see green hydrogen, over time, replace polluting fuels in our cars, vans and ferries.”
ITM Power, who specialise in the manufacture of integrated hydrogen energy systems, won a competitive tender to supply a system to EMEC back in 2015. The system’s principal component, a 0.5MW ‘polymer electrolyte membrane’ (PEM) electrolyser, comes with integrated compression and up to 500kg of storage.
Dr Graham Cooley, CEO, ITM Power commented: “We are delighted to be working with EMEC and to have reached the milestone of first gas production on this ground-breaking project to directly couple an electrolyser to tidal turbines. This is an excellent example of using hydrogen to capture and store excess renewable energy.”
One of the projects that will be using EMEC’s electrolyser is the Surf’n’Turf project being led by Community Energy Scotland in partnership with Orkney Islands Council, EMEC, Eday Renewable Energy and ITM Power.
The Surf ‘n’ Turf project will see the electrolyser producing hydrogen using electricity from EMEC’s test site as well as power from a 900kW Enercon wind turbine owned by the Eday community. The hydrogen will then be transported to Kirkwall, where a fuel cell installed on the pier will convert the hydrogen back into electricity for use as auxiliary power for ferries when tied up overnight. The project is also developing a training programme with a view to green hydrogen eventually being used as a fuel source on the inter-island ferries themselves.
Mark Hull, Community Energy Scotland’s Head of Innovation said: “As Orkney’s communities and businesses pull together to establish the foundations of a local hydrogen network, it’s fantastic to see this achievement. Getting the most out of the islands’ renewable resources is the driving force behind the Surf ‘n’ Turf project of which this electrolyser is a key part.
“So it’s full speed ahead now to get the rest of the network ready.”
Bryan Rendall, Director at BJRE Ltd said: “This has been a fantastic opportunity for us to get involved in yet another world leading project, and we have been instrumental in many aspects of it; from electrical system design through to commissioning. We are delighted to have worked with so many of the project partners including Eday Renewable Energy, EMEC, ITM Power and Community Energy Scotland and to have had so much support from the people on Eday.
“We are really looking forward to seeing more and more hydrogen infrastructure in Orkney to complement the renewable energy electrical infrastructure we have built out over the last 18 years. There are tremendous opportunities for us all here in Orkney to adopt an alternative and complementary means of energy distribution and use. We are proud to have been part of progressing that thus far, and look forward to seeing much more of it in the future.”
Lisa MacKenzie, Marketing and Communications Manager, EMEC
Tel: +44(0) 7984 585417
Established in 2003, EMEC is the world’s leading facility for testing wave and tidal energy converters in real sea conditions. The centre offers independent, accredited grid-connected test berths for full-scale prototypes, as well as test sites in less challenging conditions for use by smaller scale technologies, supply chain companies, and equipment manufacturers.
To date, more marine energy converters have been deployed in Orkney, Scotland, than at any other single site in the world with 19 wave and tidal energy clients spanning 10 countries having tested 30 marine energy devices.
Surf ‘n’ Turf is a pioneering project that will see hydrogen generated from tidal and wind energy to overcome grid limitations in Eday, Orkney. The hydrogen will be stored and shipped to a fuel cell in Kirkwall. The fuel cell will convert the hydrogen back to electricity, which will be used as an auxiliary power source for the inter-island ferries when docked in the harbour.
In addition to this, the Surf ‘n’ Turf project has designed the fuel cell to marine standards (i.e. as it would be built if it were on a ship) creating a unique facility allowing mariners to train for hydrogen powered ferries.
About Hydrogen in Orkney
Surf ‘n’ Turf is paving the way for other innovative hydrogen projects. For example, BIG HIT, which will use renewably generated hydrogen to power a fleet of electric vans and two hydrogen-powered boilers in Orkney.
About ITM Power plc
ITM Power manufactures integrated hydrogen energy solutions which are rapid response and high pressure that meet the requirements for grid balancing and energy storage services, and for the production of clean fuel for transport, renewable heat and chemicals. ITM Power plc was admitted to the AIM market of the London Stock Exchange in 2004. The Company received £4.9m as a strategic investment from JCB in March 2015. The Company signed a forecourt siting agreement with Shell in September 2015. www.itm-power.com
About BJRE Ltd
BJRE Ltd is the UK’s most northerly independent provider of connections to the UK grid. Formed in 1994, BJRE have carried out works in locations as diverse as California and Australia, but it’s in Scotland where significant levels of renewable generation have been installed and connected at voltages up to 33 kV. BJRE have worked with EMEC since the first feasibility stages, and have carried out electrical works for many of the developers who have come to EMEC. The company carries out a broad range of renewable energy works, not just limited to electrical connections. The company also carries out operations and maintenance services on multi megawatt windfarm projects in an area covering Shetland to southern Scotland and operates microwave and fibre optic telecommunications networks. BJRE Ltd are based in Kirkwall, Orkney. www.bjre.co.uk