For immediate release: January 21, 2021

ENEUS ENERGY has gained planning consent for its proposed green hydrogen/ammonia plant in Orkney, Scotland, putting the company on track to deliver the first commercial plant of its kind in the UK.

The development, along with the proposed wind turbines extension at Hammars Hill, was approved by the Orkney Council Planning Committee at a meeting on January 20.

Using a zero-carbon process, the site, near Evie on the mainland of Orkney, will harness the renewable electricity generated by the wind turbines, to produce hydrogen (H₂) from water, and then combine it with nitrogen (N2) from the air to form ammonia (NH3).

The storage and transport of liquid ammonia uses the same technologies as Liquified Petroleum Gas (LPG) and provides the opportunity to work in new markets with existing fuel suppliers on the islands.

Eneus CEO Chris Bronsdon commented:  “Today marks a significant milestone in the commercialisation of green hydrogen and ammonia in the Orkney Islands and for Scotland. Converting green hydrogen to ammonia turns it into an easily stored and economically transportable zero carbon fuel for end-user markets.

“We look forward to working with our partners both on and off Orkney to deliver this project, showcasing the potential for commercial scale plants to begin to move forward.”

Orkney Islands Council has long championed the use of hydrogen to assist in the decarbonisation of the islands’ transport and heat networks. Since the submission of the application, the hydrogen sector has been further bolstered by the publication of the Scottish Government’s Hydrogen Strategy and the UK Government’s Energy White Paper, which outlines the delivery of their national hydrogen strategy in early 2021.

These Government strategies outline future support including funding streams to unlock innovative projects such as Hammars Hill.

Eneus Energy and Hammars Hill Energy have been assisted by Scottish renewable development support experts, Green Cat Renewables (GCR).

GCR provided technical support and project management services, producing the planning  and technical assessments to support the planning application.

Hammars Hill Energy Ltd Director Alistair Gray commented:

“The wind turbines will be owned and managed by Hammars Hill Energy Limited, the owners of the existing Hammars Hill Wind Farm, and we are very please to have achieved planning consent for the two new turbines and associated hydrogen/ammonia plant.

“Covid-19 has changed things for us all, but if the UK is to deliver on its stated net-zero targets then it appears to me that the next decade will be critical if intent is to be turned into action.

“Orkney has some of the UK’s best renewable energy resources yet being at the end of the National Grid, the islands face significant challenges in grid capacity constraints and infrastructure developments, underpinned by an unhelpful regulatory and grid charging regime.

“Since the original project was built, the design and economics of wind turbines has evolved and in view of the risks associated with the proposed new transmission cable, and the delay and uncertainty over the conditions associated with the Ofgem “minded to decision”, the board of Hammars Hill have been considering a range of alternative strategies and believe that expansion of the existing wind farm together with the ammonia plant is an innovative example of the type of transformational project required to reduce greenhouse gas emissions and deliver net zero.”

GCR Director Gavin Catto said: “We are delighted to have secured consent for this innovative project.  As we move through the energy transition and start to decarbonise the economy more deeply, we need to start thinking more widely about energy and how we capture and utilise it.  This project that uses the abundant wind energy resource available on Orkney and converts it into a fuel that can be used to decarbonise heat and transport on the islands is going to be a key demonstration of how this transition can be achieved and we are delighted to be involved with this project.”


Eneus Energy was founded in Edinburgh in 2013. CEO Chris Bronsdon has 25 years’ experience in the UK and European energy sectors gained across nuclear, renewables and electricity transmission networks. He has held positions including Chief Executive of the Scottish European Green Energy Centre, and as a special advisor to the Scottish Government on Electricity Market Reform.

Eneus Energy integrate existing, proven, industrial technologies, in combination with renewable electricity, water and air to produce ‘green’ ammonia, without any associated greenhouse gas emissions.

Due to its low volumetric energy density, hydrogen requires either additional compression (as a gas), or cooling (liquefaction) to the point at which hydrogen gas forms a liquid, in order to increase the amount of hydrogen that is stored or transported. A major part of the cost of delivering hydrogen to consumers is therefore the cost of storing and moving hydrogen as a gas or liquid from where it is produced to where it is used.

Liquid ammonia (hydrogen density of 108g/L) carries around 52% more hydrogen than liquid hydrogen (hydrogen density of 71g/L), but requires much less energy to liquefy (-33°C), compared to hydrogen which forms a liquid at -253°C.

As a zero-carbon fuel, ammonia can be used directly in modified combustion engines and is a leading drop-in replacement for Heavy Fuel Oil (HFO) in the marine shipping sector in order to meet GHG emissions targets. It can also be co-fired alongside existing fuels, to reduce carbon emissions.

For end-use hydrogen applications, a ‘cracking’ process liberates the hydrogen for final consumption via commercially available conversion technologies.

The Eneus team are currently developing green ammonia and hydrogen plants worldwide.



Green Cat Renewables is a renewable energy consultancy founded in December 2004 by Gavin Catto. The company has offices across Scotland in Biggar, Edinburgh, and Livingston, employing 50+ technical staff, and in 2017 opened a Canadian office, in Calgary, Alberta.

The company was established with an aim of driving down the costs associated with the development of renewables projects and making renewables accessible beyond the large developers and utilities.

Green Cat identified an opportunity to improve efficiency and reduce development costs by offering a complete in-house consultancy and project management service to deliver projects from initial conception to operation. Green Cat’s experience profile includes 500MW+ of wind, 200MW+ of solar and 20MW+ of hydro projects.